Login now

Not your profile? Login and get free access to your reports and analysis.

Tags

Sign in

The following tags have been added by users of CircleCount.com.
You can login on CircleCount to add more tags here.

  • Nerds
  • Science
  • Scientists

Are you missing a tag in the list of available tags? You can suggest new tags here.

Login now

Do you want to see a more detailed chart? Check your settings and define your favorite chart type.

Or click here to get the detailed chart only once.

Peter Edenist has been at 8 events

HostFollowersTitleDateGuestsLinks
STEM Women on G+172,613Join us for a STEM Women HOA as we speak to Dr @114268746734367828990, VP of Academic and Research Relations at @111637214304386514022. Amy has a PhD in Cognitive Science, and will talk to us about her work in the field of Scholarly Publishing.  Read more about Amy: http://www.digital-science.com/people/amy-brand This HOA will be hosted by Dr @108510686109338749229  and Dr @110756968351492254645. You can tune in on Sunday 28th Sept at 2.30 PM Pacific or 10.30PM UK/ Monday 29th 7.30 AM AUS. The hangout will be available for viewing on our YouTube channel after the event: http://www.youtube.com/stemwomen #stemwomen   #science   #womeninstem  In The Spotlight with Dr Amy Brand: Digital Science2014-09-28 23:30:0027  
Lawrence Livermore National Laboratory265,723Get the lesson plan and notes! 1) Follow this link: http://bit.ly/1rY73sH 2) Share your name and email with us 3) Download 4) Try it out in your classroom!  In this lesson, Los Gatos High School Teacher Dan Burns gives a demo of an interactive physics lesson on invisible waves and infrared radiation. Dan lists this among his "$10 activities" you can do to get your students engaged and surface exploratory opportunities. Classroom-Ready Lessons is an new extension of the various professional development opportunities provided to STEM teachers by the Education Program at the Lawrence Livermore National Laboratory. For more information, visit http://education.llnl.gov.Classroom-Ready Lessons: Studying the invisible2014-07-11 19:00:0033  
Joanne Manaster113,483Physicist Monica Dunford is an Enrico Fermi Fellow from the University of Chicago who works on the Large Hadron Collider's ATLAS experiment. She appeared in the movie Particle Fever and will join me to talk about the movie, particle physics and being a woman in physics! Her blog is at http://uslhc.us/blogs/. It will air at 9am CDT.Interview with Particle Fever's Monica Dunford2014-07-02 16:00:0035  
Joanne Manaster113,483Join us as @104733415626297507218 and Joanne Manaster chat with @112026058728255591897 and @106544067325247750869 about their book, "Marketing the Moon: The Selling of the Apollo Lunar Program" on Monday, June 23 at noon EDT, 11 CDT. Read Science! "Marketing the Moon" Edition2014-06-23 18:00:0019  
STEM Women on G+172,613Join us for a STEM Women HOA as we speak to Professor @102683355993519058911  on her career as a materials scientist. Julia works on 3D nanomaterials, and her research specialises in the creation of extremely strong yet ultra-light materials. She will talk to us about her fascinating career path and diverse interests, along with ways in which academia can be more supportive of STEM parents.  This HOA will be hosted by Dr @108510686109338749229  and Dr @110756968351492254645    and you can tune in on Sunday June 22nd at 2.30 PM Pacificl/ 10.30PM UK. The hangout will be available for viewing on our YouTube channel (http://www.youtube.com/stemwomen) after the event.In the Spotlight, with Professor Julia Greer2014-06-22 23:30:0032  
STEM Women on G+172,613Join us for a STEM Women HOA panel discussion as we speak to Professor @114601143134471609087, Dr @115524304992150028865 and Dr @101757560980174712178 about being STEM Parents. We will discuss how our panellists support and encourage their children in STEM Education through pre-school, high school and college. They will share their insights with us as we talk about the challenges and rewards that come with encouraging girls to pursue a STEM career someday! This HOA will be hosted by Dr @108510686109338749229  and Dr @110756968351492254645  and you can tune in on Sunday May 11th at 2.30 PM PDT/ 10.30 PM BST (UK). The hangout will be available for viewing on our YouTube channel (http://www.youtube.com/stemwomen) after the event.STEM Parents: A STEM Women Conversation2014-05-11 23:30:0044  
Andrij “Andrew” Harasewych354,184It's been a pretty disappointing year for some of us, celestial sights wise. There have been the usual meteor showers (it was cloudy for me every time), the transit of Venus (also cloudy) and several eclipses (none were visible from my area). Luckily, we still have the Geminids left. They're generally considered to be one of the best and most reliable meteor showers of the year, so hopefully we'll get a good show. They will appear to radiate from the constellation of Gemini, and you could spot up to 120 meteors per hour. The moon will be new meaning that visibility should be very good. Although Dec 13th-14th is the peak, meteors will be visible for several days before and after that so don't forget to look up this week. As usual, if you get any good photographs/videos please send them our way!Geminid Meteor Shower2012-12-14 00:00:00162  
Billy Wilson1,547,760Come watch another episode of my fun weekly on air G+ variety show that brings together the best of everything on G+! This week I'll having joining me Green Lifestyle Author @117617834204433046057; Photographers @104522833443181754677 and @118255645714452180374; and special musical guest @110785455386726299170 ! You can talk with us and other people watching the show in our *chatroom* when the show is live: http://blyve.com/event/7a674650da6e0d0320010000 The episode will be broadcast on my G+ stream: http://goo.gl/K9ICs and the player will also be embedded to this event. You can watch previous episodes here: http://goo.gl/ceHtHThat Show with Billy Wilson (TSBW) #23 (On Air Hangout)2012-09-08 04:00:0042  

Shared Circles including Peter Edenist

Shared Circles are not available on Google+ anymore, but you can find them still here.

The Google+ Collections of Peter Edenist

104978721982847419074 has no public Google+ Collections yet.

Activity

Average numbers for the latest posts (max. 50 posts, posted within the last 4 weeks)

8
comments per post
30
reshares per post
108
+1's per post

4,642
characters per posting

Top posts in the last 50 posts

Most comments: 117

2014-07-24 12:58:07 (117 comments, 58 reshares, 144 +1s)Open 

2014 Super Sci-FI Circle : No, the Sky is not Falling!!! Also the Gravity is not sucking you in... please +1 this post to support it or you may have to take a trip in Snowpiercer, no need to thank me. Please reshare if you think this is a worthwhile circle. If you have been notified, you are in the circle!

All the people in this circle are linked to our community (see link further down). As usual, please tag and recommend anyone who you think should be in this circle. Live long and prosper!

Sci-FI Community here: http://goo.gl/s1NVd  
Science Fiction Pics: http://goo.gl/sOSPK5
Mighty Shiny Browncoats : http://goo.gl/9osg1t
Doctor Who : http://goo.gl/z3uWX3
Ultimate Star Wars : http://goo.gl/Wu8bv6
Ultimate Star Trek : http://goo.gl/JJPql9
Science on G+ community here: http://goo.gl/46uFH

#sciencefiction #sf #scifi  

Most reshares: 58

2014-07-24 12:58:07 (117 comments, 58 reshares, 144 +1s)Open 

2014 Super Sci-FI Circle : No, the Sky is not Falling!!! Also the Gravity is not sucking you in... please +1 this post to support it or you may have to take a trip in Snowpiercer, no need to thank me. Please reshare if you think this is a worthwhile circle. If you have been notified, you are in the circle!

All the people in this circle are linked to our community (see link further down). As usual, please tag and recommend anyone who you think should be in this circle. Live long and prosper!

Sci-FI Community here: http://goo.gl/s1NVd  
Science Fiction Pics: http://goo.gl/sOSPK5
Mighty Shiny Browncoats : http://goo.gl/9osg1t
Doctor Who : http://goo.gl/z3uWX3
Ultimate Star Wars : http://goo.gl/Wu8bv6
Ultimate Star Trek : http://goo.gl/JJPql9
Science on G+ community here: http://goo.gl/46uFH

#sciencefiction #sf #scifi  

Most plusones: 208

posted image

2015-08-03 16:56:49 (13 comments, 56 reshares, 208 +1s)Open 

Slinky Drop

No matter how long the slinky is, the bottom of the slinky will stay still (hover) until the top reaches it. Even if the slinky is over 1000 feet long.

Why? Slinky Drop Answer

(Image source: http://goo.gl/y8KD5) #scienceeveryday  

Latest 50 posts

posted image

2015-08-05 05:34:06 (2 comments, 4 reshares, 8 +1s)Open 

+Jonah Miller explains general relativity....

General Relativity is the Dynamics of Distance

This is part two in a many-part series on general relativity. Last time, I described how Galileo almost discovered general relativity. In particular, I told you that gravity isn’t a force. In fact, gravity is the same as acceleration. Now, this is a completely crazy idea. After all, we’re all sitting in the gravitational field of the Earth right now, but we don’t feel like we’re moving, let alone accelerating. But let’s take this crazy idea at face value and see where it leads us.

(To read this post in blog form, go here: http://www.thephysicsmill.com/2015/08/03/general-relativity-is-the-dynamics-of-distance/)

(If you haven’t read my previous post on why gravity is acceleration, I recommend you do so now. It is here: http://www.thephysicsmill.com/2015/07/26/galileo-almost-discovered-general-relativity/)

But first, we need to make a brief detour  and discuss the Doppler effect.

The Doppler Effect

The Doppler effect is a bit complicated (especially for light), so I won’t go into too much depth. Instead, I’ll describe it by analogy. (I’ve given the same analogy before, in my article on the expanding universe. So if you remember, you can skip all this. See: http://www.thephysicsmill.com/2013/03/24/receding-horizons-dark-energy-and-the-expanding-universe/)

Imagine that Paul Dirac [1] and Leopold Kronecker [2] are playing catch, as in figure 2. Each second, Kronecker throws a ball to Dirac, who catches it. Thus, the frequency of balls that Dirac catches is 1 Hertz (Hz)—one per second, or one inverse second.

But now imagine that Dirac starts backing away from Kronecker, as shown in figure 3. Kronecker continues to throw at a rate of one ball per second. However, since Dirac is moving away from the balls, each one takes longer to get to him. Thus, he catches the balls at a rate slower than one per second…say, one every 1.5 seconds.

A similar thing happens with both light and sound. (In the case of sound, we call it the acoustic Doppler effect [3].) Light is a wave. It has peaks and troughs which wiggle up and down in time, as shown in figure 4. The number of peaks (or troughs) per meter is called the wave number.  The speed at which it wiggles up and down in time is called the frequency. The two are related by the speed of the light wave, which is always constant (see: http://www.thephysicsmill.com/2012/11/19/the-speed-of-light-is-constan/), so they’re basically interchange-able.

The frequency of a light wave is analogous to the frequency at which Kronecker throws balls at Dirac. Instead of counting the number of times Dirac throws the ball, we count the peaks of the wave. The frequency of a light wave also determines its color; high frequencies are blue, while low frequencies are red.

This means that if Kronecker fires a green laser at Dirac, and Dirac moves away from him, the laser light will appear more reddish to Dirac than it does to Kronecker. This is called a redshift. If Dirac were moving away from from Kronecker at an increasing rate, in other words if Dirac were accelerating, the redshift would be even more pronounced.

Gravitational Redshift

So what does all this have to do with gravity? Well remember, gravity is acceleration. So we should be able to see a Doppler-like effect just by moving from a region with strong gravity into a region with weak gravity, or vice-versa. To see what I mean, imagine that Kronecker and Dirac are up to their old tricks. But this time, imagine that Kronecker is on Earth, and Dirac is in space, as shown in figure 5.

Kronecker fires a green laser up at Dirac. Now, remember: gravity is acceleration. Both Kronecker and Dirac are in a gravitational field, so they’re both accelerating. But Kronecker is in a stronger field, so he’s accelerating more. This means that, from Dirac’s perspective, Kronecker is accelerating away from him. Therefore, by the time the light reaches Dirac, he sees it redshifted because of the Doppler effect.

In the context of general relativity, we call this gravitational redshift, and it’s a real effect. We need to take it into account when we read signals sent to us from gps satellites, for example [4].

Redshift, Distance, Time

The peaks and troughs of light make it an extraordinarily good ruler. If you know the wave number of a wave of light, you can count the number of peaks and in the wave between two places and calculate how far away those two places are from each other. In a very real sense, distance is defined by this procedure [5].

How, then, do we interpret the redshifted light that Dirac sees? If light on Earth is redshifted when it goes into space, that light stretches out. The distance between adjacent peaks in the light wave grows. Does this mean that distance itself grows?

Yes. It means exactly that.

In a strong gravitational field, distances are shorter than in a weak gravitational field. Indeed, because the wave number of a wave and the frequency of a wave are interchange-able, this also means that times are longer in duration a strong gravitational field than in a weak gravitational field.

We started with the crazy (but true!) idea that gravity is the same as acceleration. But this has lead us to an even crazier (but still true!) idea: gravity shrinks distance and stretches duration.

This is what people mean when they say that gravity is a warping of space and time (or suggestively, spacetime). The very way that we measure distance is distorted by a gravitational field.

And general relativity is the dynamics of distance.

Next time we’ll talk about how a warped spacetime creates the illusion of a gravitational force.

Further Reading

I took the gravitational redshift argument directly out of the excellent textbook Spacetime and Geometry by +Sean Carroll. If you have a good background in math and you want to learn general relativity, I highly recommend it.  You should also check out his amazing blog: http://preposterousuniverse.com/

Here are some other resources:

1. This is a nice video on the Doppler effect: https://youtu.be/h4OnBYrbCjY

2. The PBS Spacetime Vlog has an excellent series of videos on general relativity. The first two videos cover what I’ve covered so far, but from a different perspective. You can find them here:
https://youtu.be/YycAzdtUIko
https://youtu.be/NblR01hHK6U

References
[1] http://en.wikipedia.org/wiki/Paul_dirac
[2] http://en.wikipedia.org/wiki/Kronecker
[3] http://en.wikipedia.org/wiki/Acoustic_Doppler_effect
[4] https://www.aapt.org/doorway/tgrutalks/Ashby/AshbyTalk5of6.htm
[5] http://www.bipm.org/utils/common/pdf/si_brochure_8_en.pdf

#Science #Physics #relativity #ScienceEveryDay  ___+Jonah Miller explains general relativity....

posted image

2015-08-03 16:56:49 (13 comments, 56 reshares, 208 +1s)Open 

Thanks to +Aida Hazlan for this explanation. The pop-physics link (Cornell Univ paper) is linked here - http://arxiv.org/abs/1208.4629

Slinky Drop

No matter how long the slinky is, the bottom of the slinky will stay still (hover) until the top reaches it. Even if the slinky is over 1000 feet long.

Why? Slinky Drop Answer

(Image source: http://goo.gl/y8KD5) #scienceeveryday  ___Thanks to +Aida Hazlan for this explanation. The pop-physics link (Cornell Univ paper) is linked here - http://arxiv.org/abs/1208.4629

2015-05-24 09:59:45 (0 comments, 0 reshares, 5 +1s)Open 

___

2015-05-11 08:41:02 (0 comments, 0 reshares, 5 +1s)Open 

Some love for my Storytellers collection!

#writerssupportingwriters  

Some love for my Storytellers collection!

#writerssupportingwriters  ___

2015-04-24 17:07:43 (0 comments, 2 reshares, 25 +1s)Open 

+Science on G+ is a well-curated and high quality community which is populated by science posts. Since we take the time to curate each and every post, look at content, check stories and references and ask for references and links for every story, it is verifiable science. The posts in the community are a repertoire of knowledge which is reaching encyclopedic proportions which links across many topics and includes scientific journals, organizations, writers, scientists and people who just love the journey of discovery which is science.

Our strength has been our mods network, and I send this out as a hat-tip to them and the stellar work they put in to bring you the best science content which you can trust. You will not find memes in this community, nor will you find jokes. But you will find science which is amazing and fascinating.

Do share this post widely if you like science. I urge... more »

+Science on G+ is a well-curated and high quality community which is populated by science posts. Since we take the time to curate each and every post, look at content, check stories and references and ask for references and links for every story, it is verifiable science. The posts in the community are a repertoire of knowledge which is reaching encyclopedic proportions which links across many topics and includes scientific journals, organizations, writers, scientists and people who just love the journey of discovery which is science.

Our strength has been our mods network, and I send this out as a hat-tip to them and the stellar work they put in to bring you the best science content which you can trust. You will not find memes in this community, nor will you find jokes. But you will find science which is amazing and fascinating.

Do share this post widely if you like science. I urge you to support us.

Thanks!___

2015-04-24 17:07:04 (26 comments, 28 reshares, 88 +1s)Open 

+Science on G+ is a well-curated and high quality community which is populated by science posts. Since we take the time to curate each and every post, look at content, check stories and references and ask for references and links for every story, it is verifiable science. The posts in the community are a repertoire of knowledge which is reaching encyclopedic proportions which links across many topics and includes scientific journals, organizations, writers, scientists and people who just love the journey of discovery which is science.

Our strength has been our mods network, and I send this out as a hat-tip to them and the stellar work they put in to bring you the best science content which you can trust. You will not find memes in this community, nor will you find jokes. But you will find science which is amazing and fascinating.

Do share this post widely if you like science. I urge... more »

+Science on G+ is a well-curated and high quality community which is populated by science posts. Since we take the time to curate each and every post, look at content, check stories and references and ask for references and links for every story, it is verifiable science. The posts in the community are a repertoire of knowledge which is reaching encyclopedic proportions which links across many topics and includes scientific journals, organizations, writers, scientists and people who just love the journey of discovery which is science.

Our strength has been our mods network, and I send this out as a hat-tip to them and the stellar work they put in to bring you the best science content which you can trust. You will not find memes in this community, nor will you find jokes. But you will find science which is amazing and fascinating.

Do share this post widely if you like science. I urge you to support us.

Thanks!___

posted image

2015-04-24 16:47:50 (0 comments, 2 reshares, 9 +1s)Open 

Jill Bolte Taylor, the Harvard-trained neuroanatomist whose life-transforming stroke became the subject of her own scientific inquiry, discusses the mysteries of the brain with Swedish scientists on Crosstalks. This content was approved by the community moderators. http://bit.ly/1HzwirC

Jill Bolte Taylor, the Harvard-trained neuroanatomist whose life-transforming stroke became the subject of her own scientific inquiry, discusses the mysteries of the brain with Swedish scientists on Crosstalks. This content was approved by the community moderators. http://bit.ly/1HzwirC___

posted image

2015-04-14 20:18:39 (0 comments, 0 reshares, 9 +1s)Open 

Spinning Fire at Dripstone Cliffs

One from the archives: a wee spot of fire spinning at Dripstone Cliffs.

Good evening.

#DripstoneCliffs  #FireSpinning #FirePoi #FirePois #PlayingWithFire #Fire #LongExposure

Spinning Fire at Dripstone Cliffs

One from the archives: a wee spot of fire spinning at Dripstone Cliffs.

Good evening.

#DripstoneCliffs  #FireSpinning #FirePoi #FirePois #PlayingWithFire #Fire #LongExposure___

2015-04-08 04:28:30 (0 comments, 0 reshares, 2 +1s)Open 

On April 6, marine scientist Tim Essington of the University of Washington, published a study in PNAS that found intense fishing does amplify forage fish collapses. He looked at patterns of 55 forage fish populations around the world over multiple decades and saw that collapses were much deeper and more frequent when fishing occurred.

You can find Essington's study on the PNAS website here: http://m.pnas.org/content/early/2015/04/01/1422020112.abstract

If you're interested in a short animation, news story, or fact sheet that explains this research more briefly, please visit http://www.pewtrusts.org

It's featured by many press articles today including "Science" here: http://news.sciencemag.org/climate/2015/04/sardines-hit-hard-overfishing

On April 6, marine scientist Tim Essington of the University of Washington, published a study in PNAS that found intense fishing does amplify forage fish collapses. He looked at patterns of 55 forage fish populations around the world over multiple decades and saw that collapses were much deeper and more frequent when fishing occurred.

You can find Essington's study on the PNAS website here: http://m.pnas.org/content/early/2015/04/01/1422020112.abstract

If you're interested in a short animation, news story, or fact sheet that explains this research more briefly, please visit http://www.pewtrusts.org

It's featured by many press articles today including "Science" here: http://news.sciencemag.org/climate/2015/04/sardines-hit-hard-overfishing___

posted image

2015-03-21 04:44:16 (0 comments, 1 reshares, 7 +1s)Open 

Awesome -- +Alex Wild and +The University of Texas at Austin are organizing a crowd funding effort to pay for the generation of oodles of high-quality public domain insect images: "We’ll be supporting a team of UT students as they produce thousands of public domain images, both of live animal behavior in the field and of detailed microscopic structures in preserved specimens. We hope you consider helping us as we create a stream of open science images, free for anyone to use."

[ #science   #ants   #insects   #myrmecology   #copyright   #photography   #photos   #UTAustin   #AlexWild   #biology   #ecology   #crowdfunding   #crowd  ]

Awesome -- +Alex Wild and +The University of Texas at Austin are organizing a crowd funding effort to pay for the generation of oodles of high-quality public domain insect images: "We’ll be supporting a team of UT students as they produce thousands of public domain images, both of live animal behavior in the field and of detailed microscopic structures in preserved specimens. We hope you consider helping us as we create a stream of open science images, free for anyone to use."

[ #science   #ants   #insects   #myrmecology   #copyright   #photography   #photos   #UTAustin   #AlexWild   #biology   #ecology   #crowdfunding   #crowd  ]___

posted image

2015-02-15 19:16:52 (1 comments, 1 reshares, 11 +1s)Open 

Next Kickstarter to save more SF books. "Save the Sci Fi: The Next Generation!
[...]
We're here to continue our original mission and SAVE MORE SCI FI! But we can't do it without YOUR HELP!
[...]
Here's what we're doing about it: Each month we choose one great classic, obscure or otherwise fascinating sci-fi book that’s no longer in print and not available online, track down the copyright holder and/or author (if they’re still around), acquire or otherwise clear the copyright, and publish the title as an e-book, for little or no cost. Our supporters and followers help us find titles they remember and love, and we share the stories behind the stories, including in each e-book what we learned about the novel, the author and their history along the way."

Next Kickstarter to save more SF books. "Save the Sci Fi: The Next Generation!
[...]
We're here to continue our original mission and SAVE MORE SCI FI! But we can't do it without YOUR HELP!
[...]
Here's what we're doing about it: Each month we choose one great classic, obscure or otherwise fascinating sci-fi book that’s no longer in print and not available online, track down the copyright holder and/or author (if they’re still around), acquire or otherwise clear the copyright, and publish the title as an e-book, for little or no cost. Our supporters and followers help us find titles they remember and love, and we share the stories behind the stories, including in each e-book what we learned about the novel, the author and their history along the way."___

posted image

2015-02-10 19:32:28 (0 comments, 1 reshares, 10 +1s)Open 

Make Room For The Elderly

Because they rule. Number three in the series.

Pinging +Mz Maau​, +Niamh Brown​ and +Peter Edenist​ because #aliens.

Site || www.mobilography.net
Page || +Mobilography
Community || http://goo.gl/ROrYI0
Tags || #Mobilography #MobilePhotography #AndroidPhotography

Make Room For The Elderly

Because they rule. Number three in the series.

Pinging +Mz Maau​, +Niamh Brown​ and +Peter Edenist​ because #aliens.

Site || www.mobilography.net
Page || +Mobilography
Community || http://goo.gl/ROrYI0
Tags || #Mobilography #MobilePhotography #AndroidPhotography___

posted image

2015-02-06 20:18:00 (1 comments, 1 reshares, 13 +1s)Open 

If you liked yesterday's Jupiter image....

Then wow... have I got something for you....

So if you're wondering what I'm talking about, yesterday I shared out an animation from multiple shots taken by the +Hubble Space Telescope of #Jupiter  and its three moons: #Europa   #Calisto  and #Io . (http://goo.gl/IRI4p7)

But as was revealed in yesterday's #HubbleHangout , the team was also able to resolve the tiny moons Amalthea & Thebe!! Below is a #gif  of multiple frames taken by Hubble.

To give you a bit of perspective, the average radius of Amalthea is about 85 kilometers while the average radius of Thebe is about 49 kilometers. I say average (or mean) radius, because they're so tiny... they're not really spherical... but that's realllllly tiny to be able to resolve not only the object, but their shadow!

Wassimp... more »

If you liked yesterday's Jupiter image....

Then wow... have I got something for you....

So if you're wondering what I'm talking about, yesterday I shared out an animation from multiple shots taken by the +Hubble Space Telescope of #Jupiter  and its three moons: #Europa   #Calisto  and #Io . (http://goo.gl/IRI4p7)

But as was revealed in yesterday's #HubbleHangout , the team was also able to resolve the tiny moons Amalthea & Thebe!! Below is a #gif  of multiple frames taken by Hubble.

To give you a bit of perspective, the average radius of Amalthea is about 85 kilometers while the average radius of Thebe is about 49 kilometers. I say average (or mean) radius, because they're so tiny... they're not really spherical... but that's realllllly tiny to be able to resolve not only the object, but their shadow!

Was simply  blown away by this yesterday when +Zolt Levay mentioned some supplemental footage at the #HubbleHeritage  site. http://heritage.stsci.edu/2015/05/supplemental.html

If you didn't see yesterday's show, I totally recommend it. And not just because I was there. It really was an awesome show with fantastic conversations with the science and image teams from many projects coming together to take a rare glimpse at our largest planets and its moons. https://www.youtube.com/watch?v=Pf6j6WJS8Ig

#SciFri   #ScienceEveryday   #ScienceFriday   #Astronomy   #Hubble25   #Space   #Hubble  ___

posted image

2015-01-16 15:43:42 (0 comments, 3 reshares, 12 +1s)Open 

A New Free Astrophotography E-Book !!!!
Posted with Permission of The Science on G+ Community Owners.
My Full Disk Hydrogen Alpha Sun Photo is Featured on the "Front Cover" of a New Free E-Book called "Imaging the Sky" by Astronomy Magazine & Celestron!
Thank you Astronomy Magazine & Celestron Telescopes for sponsoring this Free E-book!!
It has tips for beginners & seasoned Amateurs, images, as well as great how to articles written by Masters of Astrophotography Damien Peach, Don Parker, Robert Reeves, Micheal Covington, & Christopher Go!  If you would like to learn about Astrophotography
then download your Free PDF E-book copy at Astronomy Magazines website.
http://www.astronomy.com/~/media/Files/PDF/Circulation/ASYImagingTheSky.pdf
Best Regards,
John Chumack
www.galacticimages.com

A New Free Astrophotography E-Book !!!!
Posted with Permission of The Science on G+ Community Owners.
My Full Disk Hydrogen Alpha Sun Photo is Featured on the "Front Cover" of a New Free E-Book called "Imaging the Sky" by Astronomy Magazine & Celestron!
Thank you Astronomy Magazine & Celestron Telescopes for sponsoring this Free E-book!!
It has tips for beginners & seasoned Amateurs, images, as well as great how to articles written by Masters of Astrophotography Damien Peach, Don Parker, Robert Reeves, Micheal Covington, & Christopher Go!  If you would like to learn about Astrophotography
then download your Free PDF E-book copy at Astronomy Magazines website.
http://www.astronomy.com/~/media/Files/PDF/Circulation/ASYImagingTheSky.pdf
Best Regards,
John Chumack
www.galacticimages.com___

posted image

2015-01-13 06:13:09 (2 comments, 0 reshares, 16 +1s)Open 

+The TerraMar Project explains how tides may have clues to climate change....

Canadian and American scientists are teaming up with Australian researchers to study some of the largest waves on the planet in the Tasman Sea. Oh, and did we mention those waves are beneath the ocean's surface?

Also known as internal tides, these underwater waves are the result of water getting pushed against features on the seafloor such as ridges and mounts. The turbulence caused by these obstructions can create underwater waves hundreds of meters high that can be imperceptible at the surface but powerful enough to move whales and submarines. Scientists speculate internal tides can provide insights to climate change and fisheries. The Schmidt Ocean Institute has a great explanation on their website, and the R/V FALKOR will be involved in the expedition: http://www.schmidtocean.org/story/show/2963

According to Dr. Pete Sutton, University of Tasmania's Institute for Marine and Antarctic Studies (IMAS) and part of the research team, "The goal of this research expedition is to discover and measure the procession of those internal tidal waves and to document the various phenomena that occur when they impact the deep continental slopes. The internal tides and turbulent mixing that occurs in the deep sea off Tasmania is thought to affect the overall circulation of the global ocean. Understanding these processes is a critical step in predicting our climate." You can find more of his comments on the University of Tasmania's website: http://www.imas.utas.edu.au/right-column-content/whats-new3/news-imas/tracking-the-deep-ocean-tides-of-the-tasman-sea2

#climatechange   #fisheries   #underwaterwaves   #science  ___+The TerraMar Project explains how tides may have clues to climate change....

posted image

2015-01-05 19:06:55 (1 comments, 0 reshares, 8 +1s)Open 

Pink was for boys and blue was for girls : At least before the modern obsession of going the other way. It kind of proves that the color palette we expect for boys and girls is based on societal pressures. At least now we know better!

Roosevelt : Little Franklin Delano Roosevelt sits primly on a stool, his white skirt spread smoothly over his lap, his hands clasping a hat trimmed with a marabou feather. Shoulder-length hair and patent leather party shoes complete the ensemble. Social convention of 1884, when FDR was photographed at 30 months, dictated that boys wore dresses until age 6 or 7, also the time of their first haircut. Franklin’s outfit was considered gender-neutral.

How conventions came to be : Why have young children’s clothing styles changed so dramatically? How did we end up with two “teams”—boys in blue and girls in pink? "It’sreally a st... more »

Pink was for boys and blue was for girls : At least before the modern obsession of going the other way. It kind of proves that the color palette we expect for boys and girls is based on societal pressures. At least now we know better!

Roosevelt : Little Franklin Delano Roosevelt sits primly on a stool, his white skirt spread smoothly over his lap, his hands clasping a hat trimmed with a marabou feather. Shoulder-length hair and patent leather party shoes complete the ensemble. Social convention of 1884, when FDR was photographed at 30 months, dictated that boys wore dresses until age 6 or 7, also the time of their first haircut. Franklin’s outfit was considered gender-neutral.

How conventions came to be : Why have young children’s clothing styles changed so dramatically? How did we end up with two “teams”—boys in blue and girls in pink? "It’s really a story of what happened to neutral clothing,” says Paoletti, who has explored the meaning of children’s clothing for 30 years. For centuries, she says, children wore dainty white dresses up to age 6. “What was once a matter of practicality—you dress your baby in white dresses and diapers; white cotton can be bleached—became a matter of ‘Oh my God, if I dress my baby in the wrong thing, they’ll grow up perverted,’ ” Paoletti says.

Pink for boys - since it is a stronger color : a June 1918 article from the trade publication Earnshaw's Infants' Department said, “The generally accepted rule is pink for the boys, and blue for the girls. The reason is that pink, being a more decided and stronger color, is more suitable for the boy, while blue, which is more delicate and dainty, is prettier for the girl.”

It all changed in 1985 : Prenatal testing was a big reason for the change. Expectant parents learned the sex of their unborn baby and then went shopping for “girl” or “boy” merchandise. (“The more you individualize clothing, the more you can sell,” Paoletti says.) The pink fad spread from sleepers and crib sheets to big-ticket items such as strollers, car seats and riding toys. Affluent parents could conceivably decorate for baby No. 1, a girl, and start all over when the next child was a boy.

Gendered roles : “One of the ways women thought that girls were kind of lured into subservient roles as women is through clothing,” says Paoletti. “ ‘If we dress our girls more like boys and less like frilly little girls . . . they are going to have more options and feel freer to be active.’ ”

Article link: http://www.smithsonianmag.com/arts-culture/when-did-girls-start-wearing-pink-1370097/?no-ist=&preview=&page=1

Pink v/s Blue gender myth: http://www.bbc.com/future/story/20141117-the-pink-vs-blue-gender-myth

Related paper: http://www.jstor.org/discover/10.2307/1128775?sid=21105563133553&uid=3738256&uid=4&uid=2

Reversing the trend: http://www.nydailynews.com/life-style/campaign-encourages-boys-feel-free-wear-pink-article-1.1878916

Gender stereotypes: http://www.babble.com/mom/is-it-okay-for-boys-to-wear-pink-kids-dads-discuss-the-color-gender-stereotypes-video/

Pic courtesy: http://klaw.com/pink-is-for-boys-and-blue-is-for-girls-new-study-shows-video/

#science #society #gender  ___

posted image

2014-12-22 03:47:27 (0 comments, 0 reshares, 11 +1s)Open 

What Exactly Are Gold, Frankincense, and Myrrh?

This is not about any religion or a discussion of religion.  I just wanted to find out what was so important about Gold, Frankincense and Myrrh that they were considered valuable.  I ask that any comments please be strictly materials science related.

Gold
This one is easy, it is gold, the shiny metal that has been a symbol of wealth since it was first discovered.  
Gold is a chemical element with the symbol Au and atomic number 79. It is a dense, soft, malleable, and ductile metal with an attractive, bright yellow color and luster that is maintained without tarnishing in air or water. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements, solid under standard conditions. The metal therefore occurs often in free elemental (native) form, as nuggets orgrai... more »

What Exactly Are Gold, Frankincense, and Myrrh?

This is not about any religion or a discussion of religion.  I just wanted to find out what was so important about Gold, Frankincense and Myrrh that they were considered valuable.  I ask that any comments please be strictly materials science related.

Gold
This one is easy, it is gold, the shiny metal that has been a symbol of wealth since it was first discovered.  
Gold is a chemical element with the symbol Au and atomic number 79. It is a dense, soft, malleable, and ductile metal with an attractive, bright yellow color and luster that is maintained without tarnishing in air or water. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements, solid under standard conditions. The metal therefore occurs often in free elemental (native) form, as nuggets or grains in rocks, in veins and in alluvial deposits.  ⓐ

This metal has been a valuable and highly sought-after precious metal for coinage, jewelry, and other arts since long before the beginning of recorded history. Gold standards have sometimes been monetary policies, but were widely supplanted by fiat currency starting in the 1930s. The last gold certificate and gold coin currencies were issued in the U.S. in 1932. In Europe, most countries left the gold standard with the start of World War I in 1914 and, with huge war debts, did not return to gold as a medium of exchange. The value of gold is rooted in its medium rarity, easily handling, easy smelting, non-corrosiveness, distinct color and non-reactiveness to other elements; qualities most other metals lack.  ⓐ

Besides its widespread monetary and symbolic functions, gold has many practical uses in dentistry, electronics, and other fields. Its high malleability, ductility, resistance to corrosion and most other chemical reactions, and conductivity of electricity has led to many uses, including electric wiring, colored-glass production, and gold leafing.  ⓐ

Most of the Earth's gold probably lies at its core, the metal's high density having made it sink there in the planet's youth. Virtually all discovered gold is considered to have been deposited later by meteorites that contained the element, with the asteroid that formed Vredefort crater having been implicated in the formation of the largest gold mining region on earth, Witwatersrand basin  ⓐ
  
Gold has been used for more than 75 years to treat rheumatoid arthritis (RA). (Indeed, gold preparations are among the original medications targeting this form of arthritis). Before its use in RA, gold was used to treat infections, including tuberculosis. Gold is one of a class of medications known as disease-modifying antirheumatic drugs (DMARDs), because it not only decreases the pain and swelling of arthritis but also can prevent joint damage and disability. While gold can be very effective at suppressing the signs and symptoms of RA for some patients, it is used less frequently as new, better tolerated medications have been identified. 
http://www.rheumatology.org/Practice/Clinical/Patients/Medications/Gold_Preparations_(Myochrysine,_Ridaura,_Solganol)/

Gold nanoparticles are also used in cancer treatment. 
As a delivery agent for anti cancer drugs.
http://phys.org/news/2013-05-gold-nanoparticles-delivery-cancer-drugs.html

And tiny particles of gold are also used in thermal cancer treatment.
http://web.mit.edu/newsoffice/2009/gold-cancer-0504.html

Frankincense, also called olibanum  
Derived from tree sap, or gum resin, both frankincense and myrrh are prized for their alluring fragrance. Frankincense is a milky white resin extracted from species of the genus Boswellia, which thrive in arid, cool areas of the Arabian Peninsula, East Africa and India. The finest and most aromatic of this species is Boswellia sacra, a small tree that grows in Somalia, Oman and Yemen. These plants, which grow to a height of 16 feet (5 meters), have papery bark, sparse bunches of paired leaves, and flowers with white petals and a yellow or red center  ⓑ

The English word is derived from Old French "franc encens" (i.e. high quality incense)[1] and is used in incense and perfumes.  There are four main species of Boswellia that produce true frankincense and resin from each of the four is available in various grades. The grades depend on the time of harvesting. The resin is hand-sorted for quality.  

I found two dissertations on Frankincense and they are a fascinating, very detailed discussion of Frankincense and its uses. More than you ever wanted to know about this sweet smelling incense. 

Chemotaxonomic Investigations on Resins of the Frankincense Species Boswellia papyrifera, Boswellia serrata and Boswellia sacra, respectively, Boswellia carterii   by Michael Paul 
http://scidok.sulb.uni-saarland.de/volltexte/2012/4999/pdf/Dissertation_Fertig_211112.pdf
PHYTOCHEMICAL INVESTIGATIONS ON BOSWELLIA SPECIES by Simla Basar
http://www.chemie.uni-hamburg.de/bibliothek/2005/DissertationBasar.pdf 

Myrrh  
Myrrh is the aromatic resin of a number of small, thorny tree species of the genus Commiphora, which is an essential oil termed an oleoresin. Myrrh resin is a natural gum. It can also be ingested by mixing it with wine.  ⓓ

When a tree wound penetrates through the bark and into the sapwood, the tree bleeds a resin. Myrrh gum, like frankincense, is such a resin. When people harvest myrrh, they wound the trees repeatedly to bleed them of the gum. Myrrh gum is waxy, and coagulates quickly. After the harvest, the gum becomes hard and glossy. The gum is yellowish, and may be either clear or opaque. It darkens deeply as it ages, and white streaks emerge ⓓ

Myrrh's uses are similar to those of frankincense, with which it is often combined in decoctions, liniments and incense ⓓ

Myrrh is a common ingredient of tooth powders. Myrrh and borax in tincture can be used as a mouth-wash. A compound tincture, or horse tincture, using myrrh is used in veterinary practice for healing wounds. Meetiga, the trade-name of Arabian Myrrh, is more brittle and gummy than that of the Somalian variety and does not have the latter's white markings. ⓓ

The oleo gum resin obtained from Commiphora species, myrrh is well known as a fragrance used in incense and in perfumes. It is also used in traditional medicine for treating inflammation, stomach problems, asthma and other bronchial conditions.  Studies indicate that myrhh has anti-inflammatory, cytotoxic, anti-trichomonas  and antipyretic effects in vitro and in mice  ⓔ

Wiki - Has an excellent write up about Gold. 
ⓐ http://en.wikipedia.org/wiki/Gold

How Stuff Works.
ⓑ  http://science.howstuffworks.com/life/botany/question283.htm

Wiki on Frankincense
ⓒ  http://en.wikipedia.org/wiki/Frankincense

Wiki on Myrrh
ⓓ  http://en.wikipedia.org/wiki/Myrrh

Memorial Sloan-Kettering Cancer Center
ⓔ  http://www.mskcc.org/cancer-care/herb/myrrh


Images:  Frankincense on a hot coal Wiki
Myrrh Wiki
Gold plating on James Webb Space Telescope, NASA___

posted image

2014-12-21 12:18:41 (1 comments, 1 reshares, 14 +1s)Open 

Wireless internet - cost effective, high speed and everywhere : Sounds like a dream? Well that's what researchers at University of Lancaster are working on. Using the W-band or the millimeter band , seems to be the way to go, promising cost effective and high speed data transfers. The system is yet to be tested in a real operating environment, but indications are favourable.

What is W-band wireless? : The ground-breaking £2.8 million TWEETHER project, funded by Horizon 2020, the biggest EU research and innovation programme ever, will set an important milestone in 'millimeter wave technology' for high speed wireless mobile and fixed point Internet.Millimeter waves - extremely high frequency waves found in the spectrum between microwaves and infrared waves - are deemed to be the most promising and cost effective solution for the future.

Promising : The... more »

Wireless internet - cost effective, high speed and everywhere : Sounds like a dream? Well that's what researchers at University of Lancaster are working on. Using the W-band or the millimeter band , seems to be the way to go, promising cost effective and high speed data transfers. The system is yet to be tested in a real operating environment, but indications are favourable.

What is W-band wireless? : The ground-breaking £2.8 million TWEETHER project, funded by Horizon 2020, the biggest EU research and innovation programme ever, will set an important milestone in 'millimeter wave technology' for high speed wireless mobile and fixed point Internet.Millimeter waves - extremely high frequency waves found in the spectrum between microwaves and infrared waves - are deemed to be the most promising and cost effective solution for the future.

Promising : The TWEETHER project will result in a powerful and compact transmission hub, based on a novel travelling wave tube power amplifier and an advanced chipset in a compact terminal, with performance far outweighing any other technology. After three years of design and development, the system will be tested in a real operating environment.

New idea : Professor Paoloni said the answer was the exploitation of unused portions of the spectrum but at higher frequencies. The recent outstanding advancements in the field of vacuum electron devices and solid state electronics using millimetre wave frequencies opens the route for the breakthrough in wireless high speed data communications.

References and Sources

Phys.org: http://phys.org/news/2014-12-fastest-outdoor-wireless-internet-world.html

http://www.science20.com/news_articles/wband_wireless_high_speed_internet_outdoors_and_everywhere-151636

Related paper in IEEE : http://goo.gl/gi6K5L

Related paper in Optics Express: http://goo.gl/YIu969

Viasat site on next-gen satellites : https://www.viasat.com/broadband-satellite-networks/high-capacity-satellite-system

Related paper in Researchgate: http://goo.gl/bY8igq

Pics courtesy: Utexas, Science20 and sympatico.ca. (Pics for illustration only).

#internet #wireless #millimeterband  ___

posted image

2014-12-14 09:37:23 (0 comments, 2 reshares, 10 +1s)Open 

The Decision : Humans are inducted into the Hnnesset and Dranke makes a decision by default in the continuing story of the crew of the Raven. ( Part 24 of the Mission impossible Science fiction series of flashfiction written in space opera style ).

I have been tied up, so I appreciate your patience and kind words of encouragement. Thanks to all those who asked me to post!

If you haven't read the earlier stories, here is the chronology:
First Part: http://goo.gl/jWKDn2
Part 2 : http://goo.gl/8wRbHE
Part 3 : http://goo.gl/eIGokJ
Part 4 : http://goo.gl/gaEZS0
Part 5 : http://goo.gl/bXYxiy
Part 6 : http://goo.gl/mmVbF9
Part 7 : http://goo.gl/i3DDVi
Part 8  : http://goo.gl/IoWcF0
Part 9  : http://goo.gl/B6OQOG
Part 10: http://goo.gl/IP0ORs
Part 11: http://goo.gl/Gn8RDY
Part 12: http://goo.gl/0zEqPI
Part 13:h... more »

The Decision : Humans are inducted into the Hnnesset and Dranke makes a decision by default in the continuing story of the crew of the Raven. ( Part 24 of the Mission impossible Science fiction series of flashfiction written in space opera style ).

I have been tied up, so I appreciate your patience and kind words of encouragement. Thanks to all those who asked me to post!

If you haven't read the earlier stories, here is the chronology:
First Part: http://goo.gl/jWKDn2
Part 2 : http://goo.gl/8wRbHE
Part 3 : http://goo.gl/eIGokJ
Part 4 : http://goo.gl/gaEZS0
Part 5 : http://goo.gl/bXYxiy
Part 6 : http://goo.gl/mmVbF9
Part 7 : http://goo.gl/i3DDVi
Part 8  : http://goo.gl/IoWcF0
Part 9  : http://goo.gl/B6OQOG
Part 10: http://goo.gl/IP0ORs
Part 11: http://goo.gl/Gn8RDY
Part 12: http://goo.gl/0zEqPI
Part 13: http://goo.gl/dXTYrs
Part 14: http://goo.gl/ZybKaL
Part 15: http://goo.gl/FrUZqX
Part 16: http://goo.gl/no9buZ
Part 17: http://goo.gl/G6KJeo
Part 18: http://goo.gl/ml0Y1A
Part 19: http://goo.gl/DBJjHf
Part 20: http://goo.gl/PT3jCj
Part 21: http://goo.gl/DXrXgp
Part 22: http://goo.gl/e1kEuu
Part 23: http://goo.gl/1EtW6U
Part 24: http://goo.gl/rK4EqX

Mission impossible is a series set in the distant future. If you like science fiction and space opera, this may be an interesting read. Notifying select people who have evinced interest in receiving notifications.

#sciencefiction #scifi #flashfiction #spaceopera  ___

posted image

2014-11-26 15:52:27 (0 comments, 1 reshares, 13 +1s)Open 

Why do plants matter : Some of the reasons are obvious. Others not so much. Plants provide food, they help fix Carbon, through photosynthesis, and they create oxygen. But there is so much more they do, which is fascinating.

Plants are medicine factories : Right from the creation of complex sugars, plants also make Vitamin C, painkillers, psychotropics and even now, plants are found to synthesize new chemicals which we use in medicine.

Plants communicate : In more ways than one.... using chemical, electrical and airborne signalling, plants are able to produce defensive weapons and warning signals which can alert their neighbours.

Plants harness the power of stars : Using the Sun as an energy source, plants have used the quantum nature of light to be as efficient as possible while carrying out photosynthesis.

Plants provide strong... more »

Why do plants matter : Some of the reasons are obvious. Others not so much. Plants provide food, they help fix Carbon, through photosynthesis, and they create oxygen. But there is so much more they do, which is fascinating.

Plants are medicine factories : Right from the creation of complex sugars, plants also make Vitamin C, painkillers, psychotropics and even now, plants are found to synthesize new chemicals which we use in medicine.

Plants communicate : In more ways than one.... using chemical, electrical and airborne signalling, plants are able to produce defensive weapons and warning signals which can alert their neighbours.

Plants harness the power of stars : Using the Sun as an energy source, plants have used the quantum nature of light to be as efficient as possible while carrying out photosynthesis.

Plants provide strong building materials : Wood from trees has been used in building material for hundreds of years. Plants have found ways to strengthen their structure through evolution and natural selection to make some of the most durable building materials.

Earlier Posts

Plants are part of the cycle of life : They are vital parts of the Carbon cycle, the water cycle, they partner with insects and animals to spread their seeds, to provide protection and can actually create electricity. Kind of amazing.

Electricity from plants : http://goo.gl/SZxlKH

Why plants are fascinating : http://goo.gl/h1NHTH

How Plants use the quantum effect of light : http://goo.gl/OAowQQ

The Secret Inner world of Plants : http://goo.gl/W97b5V

How the Potato changed the world : http://goo.gl/UsDnL9

Grass : http://goo.gl/2ntTkY

How Plants move : http://goo.gl/66tD3S

Ultrasonic popping sounds from Trees : http://goo.gl/8jRWdq

How hydroelectric power is dependent on trees : http://goo.gl/Jc1CCB

References

http://www.abc.net.au/radionational/programs/ockhamsrazor/the-power-of-plants-in-science-culture-and-medicine/5694054

http://www.plantsciences.ucdavis.edu/plantsciences/newsletters/2014/oct15.htm

http://www.nature.com/nature/journal/v512/n7515/full/512351e.html

http://www.wired.com/2013/12/secret-language-of-plants/

Pic courtesy : Reddit ( http://i.minus.com/ibqqfn1MoIFAZv.gif )

#science #botany #plants  ___

posted image

2014-11-24 04:02:34 (0 comments, 1 reshares, 23 +1s)Open 

Why Nanomaterials are fascinating (Or how a dog becomes a cat, becomes a hummingbird) : Well, any material can be a Nanomaterial. A Nanomaterial is purely something reduced to a size of 1 to 100 nms. So why the fuss? For one, unlike macro materials, Nanomaterials can be two dimensional. As we get smaller and smaller, they exhibit properties which confound us.  One must remember though, these are not chemically changed. All that is done is the size of the particles is made smaller and smaller.

In Nanotechnology, what is important about materials is NOT really what they are made of, but how small they are. This is different than every other materials age in human history.

Magnetism example : Atoms can have magnetic moments... Why is this? Due to the spin of unpaired electrons. A magnetic moment aligns with an external field. Let's take the example of CoCr (Cobalt... more »

Why Nanomaterials are fascinating (Or how a dog becomes a cat, becomes a hummingbird) : Well, any material can be a Nanomaterial. A Nanomaterial is purely something reduced to a size of 1 to 100 nms. So why the fuss? For one, unlike macro materials, Nanomaterials can be two dimensional. As we get smaller and smaller, they exhibit properties which confound us.  One must remember though, these are not chemically changed. All that is done is the size of the particles is made smaller and smaller.

In Nanotechnology, what is important about materials is NOT really what they are made of, but how small they are. This is different than every other materials age in human history.

Magnetism example : Atoms can have magnetic moments... Why is this? Due to the spin of unpaired electrons. A magnetic moment aligns with an external field. Let's take the example of CoCr (Cobalt Chrome Alloy). At the macro size, it displays no magnetism. This is because when at the macrosize, domains cancel each other out. These are called 'Bulk Ferromagnets' and can be electromagnets. So these sizes do not get highly magnetized and can be called permanent magnets (if enough of the domains align in one direction). Let's say these behave like Dogs..

As you go smaller, from 20nm grain size to 80 nm grain size, The magnetism in this powder will depend on volume. It is harder to magnetize these particles, but when these are magnetized, they resist going back to their original state. These are single domain magnets and once magnetized, they stay that way; though they are easy to magnetize and demagnetize. Let's say these behave like Cats....

When you go down to even smaller size, the ferromagnets are smaller than 20 nm in size, they are very, very small, not much bigger than molecules. They are easier to magnetize and flip. So easy to magnetize and flip, that this is a property used in MRI tests. Superparamagnets have fluctuating magnetic moments with no applied field, but with applied field become magnetized easily. These are called superparamagnets.  Let's say these behave like hummingbirds.

Earlier post on Superparamagnetism: https://plus.google.com/u/0/b/103586346709495625226/+LacerantPlainerWrites/posts/VGo4iq3U9Lc

References

Rice University, introduction to Nanotechnology

Nanotechnology now : http://www.nanotech-now.com/news.cgi?story_id=49034

Havard University: http://cml.harvard.edu/research/new-materials/

Pic courtesy: Havard Universty . Cyborg Neural Tissue: Seamless integration of 3D nanoelectronic and neural networks

#science #scienceeveryday  ___

posted image

2014-11-15 11:56:43 (3 comments, 3 reshares, 17 +1s)Open 

New Biodegradable Suture Anchors

When a person has a bad shoulder injury like a torn tendon, surgery is required.  The surgeon will use anchor screws for sutures that attach to the bone to do the repair.  These anchor screws have to be strong enough to carry the load until the body has a chance to heal.  Up to now surgeons have been using materials that need to be left in place or removed after the healing process is over.  "Researchers at the Fraunhofer Institute for Manufacturing Technology and Advanced Materials in Bremen, Germany have been working on durable implants that degrade and slowly dissolve into the body for further secretion."

No other joint in the human body is as highly mobile as is the shoulder. However, it is also very sensitive and prone to injury, with athletes being particularly affected. The most common complaints include tendon rupture, whichhav... more »

New Biodegradable Suture Anchors

When a person has a bad shoulder injury like a torn tendon, surgery is required.  The surgeon will use anchor screws for sutures that attach to the bone to do the repair.  These anchor screws have to be strong enough to carry the load until the body has a chance to heal.  Up to now surgeons have been using materials that need to be left in place or removed after the healing process is over.  "Researchers at the Fraunhofer Institute for Manufacturing Technology and Advanced Materials in Bremen, Germany have been working on durable implants that degrade and slowly dissolve into the body for further secretion."

No other joint in the human body is as highly mobile as is the shoulder. However, it is also very sensitive and prone to injury, with athletes being particularly affected. The most common complaints include tendon rupture, which have to be treated surgically. The surgeon fastens the cracks using suture anchors. Such implants used to be made of titanium or non-degradable polymers – with the disadvantages that either they remain in the body even after healing has occurred or doctors have to remove them in a second procedure.  ⓐ

The researchers developed anchor screws that are designed to slowly biodegrade while keeping their strength as long as needed. They are made from a metal - ceramic composite and manufactured using a powder metallurgy process. 

These materials are to be gradually absorbed by the body while, at the same time, new bone tissue is formed. Ideally, the degree of degradation is adapted to the bone growth so that the degradation of the implant meshes with the bone formation. For this reason, the scientists are developing materials with specifically adjustable degradation. The challenge: The implants have to be mechanically stable enough during the entire healing process so that they are able to fix the bone in place. At the same time, they cannot have any allergenic effects or cause inflammation. The researchers at IFAM are relying on metal-ceramic composites.  ⓐ

A metal component based on an iron alloy is being combined with beta-tricalcium phosphate (TCP) as the ceramic component. “Iron alloys corrode slowly and ensure high mechanical strength, while ceramic decomposes quickly, stimulates bone growth and aids the ingrowth of the implant”, Imgrund says to explain the advantages of this material combination.  ⓐ  (Dr. Philipp Imgrund, manager of the Medical Technology and Life Sciences business field at IFAM.)

Powder injection molding is used to manufacture the material composite due to its ability to produce complex structures cost-effectively and in large numbers. Properties such as density and porosity can be controlled selectively – an important factor, since high density and low porosity result in high mechanical strengths. The process also allows materials, available as powders, to be mixed in any proportion prior to processing.  ⓑ 

The materials are available as powders and can be mixed in any proportion prior to processing. But what proportion is the right one? In laboratory experiments, the researchers have found the optimum composition of the materials for the suture anchor. The demonstrator consists of 60 percent iron and 40 percent ceramic. “It is important to determine the right amount of ceramics as a function of the powder amount. If the proportion is too high, the material will be brittle. On the other hand, the tricalcium phosphate accelerates the degradation of the implant,” says Imgrund. The researchers have succeeded in doubling the degradation rate from 120 to 240 micrometers per year in the laboratory model. The shoulder anchor would be absorbed by the body within one to two years.  ⓐ


ⓐ Press Release, Fraunhofer Institute for Manufacturing Technology and Advanced Materials  IFAM in Bremen
Fewer surgeries with degradable implants
http://www.fraunhofer.de/en/press/research-news/2014/november/fewer-surgeries-with-degradable-implants.html

ⓑ Micro Manufacturing, Injection-molded degradable implants allow for fewer surgeries
http://www.micromanufacturing.com/content/injection-molded-degradable-implants-allow-fewer-surgeries

Image: The demonstrator for a suture anchor made of iron-tricalcium phosphate (FE-TCP)is only slightly larger than a match head.   © Fraunhofer IFAM___

posted image

2014-11-09 14:20:33 (0 comments, 1 reshares, 12 +1s)Open 

Thwarted : The mystery deepens as the crew of the Raven is involved with an attack on a Hnnet Space outpost. As the workings of the Hnnet and Jexx are shrouded (literally with their cloaking devices and figuratively with their unwillingness to share information), Captain Dranke finds himself having to make decisions which he is not prepared for.

(Part 20 of the Mission impossible Science fiction series of flashfiction written in space opera style).

If you haven't read the earlier stories, here is the chronology:
First Part: http://goo.gl/jWKDn2
Part 2 : http://goo.gl/8wRbHE
Part 3 : http://goo.gl/eIGokJ
Part 4 : http://goo.gl/gaEZS0
Part 5 : http://goo.gl/bXYxiy
Part 6 : http://goo.gl/mmVbF9
Part 7 : http://goo.gl/i3DDVi
Part 8  : http://goo.gl/IoWcF0
Part 9  : http://goo.gl/B6OQOG
Part 10: http://goo.gl/IP0ORs
Part1... more »

Thwarted : The mystery deepens as the crew of the Raven is involved with an attack on a Hnnet Space outpost. As the workings of the Hnnet and Jexx are shrouded (literally with their cloaking devices and figuratively with their unwillingness to share information), Captain Dranke finds himself having to make decisions which he is not prepared for.

(Part 20 of the Mission impossible Science fiction series of flashfiction written in space opera style).

If you haven't read the earlier stories, here is the chronology:
First Part: http://goo.gl/jWKDn2
Part 2 : http://goo.gl/8wRbHE
Part 3 : http://goo.gl/eIGokJ
Part 4 : http://goo.gl/gaEZS0
Part 5 : http://goo.gl/bXYxiy
Part 6 : http://goo.gl/mmVbF9
Part 7 : http://goo.gl/i3DDVi
Part 8  : http://goo.gl/IoWcF0
Part 9  : http://goo.gl/B6OQOG
Part 10: http://goo.gl/IP0ORs
Part 11: http://goo.gl/Gn8RDY
Part 12: http://goo.gl/0zEqPI
Part 13: http://goo.gl/dXTYrs
Part 14: http://goo.gl/ZybKaL
Part 15: http://goo.gl/FrUZqX
Part 16: http://goo.gl/no9buZ
Part 17: http://goo.gl/G6KJeo
Part 18: http://goo.gl/ml0Y1A
Part 19: http://goo.gl/DBJjHf
Part 20: http://goo.gl/PT3jCj

Mission impossible is a series set in the distant future. If you like science fiction and space opera, this may be an interesting read. Notifying select people who have evinced interest in receiving notifications.

#sciencefiction #scifi #flashfiction #spaceopera ___

2014-10-26 10:37:53 (1 comments, 3 reshares, 10 +1s)Open 

Please share if you like the community. Also recommend the community, we have a whole host of Science Fiction themed communities, but this is the mothership!

Please share if you like the community. Also recommend the community, we have a whole host of Science Fiction themed communities, but this is the mothership!___

posted image

2014-10-26 10:34:32 (0 comments, 0 reshares, 4 +1s)Open 

Turn : New developments are afoot, and the Captain of the darkmatter starcraft and his crew are shocked by the revelation. Read more about what happens next!

If you haven't read the earlier stories, here is the chronology:

First Part: http://goo.gl/jWKDn2
Part 2 : http://goo.gl/8wRbHE
Part 3 : http://goo.gl/eIGokJ
Part 4 : http://goo.gl/gaEZS0
Part 5 : http://goo.gl/bXYxiy
Part 6 : http://goo.gl/mmVbF9
Part 7 : http://goo.gl/i3DDVi
Part 8  : http://goo.gl/IoWcF0
Part 9  : http://goo.gl/B6OQOG
Part 10: http://goo.gl/IP0ORs
Part 11: http://goo.gl/Gn8RDY
Part 12: http://goo.gl/0zEqPI
Part 13: http://goo.gl/dXTYrs

( Notifying select people please let me know if you wish to get / opt out of notifications )

Mission impossible is a series set in the distant future. If you like science fiction ands... more »

Turn : New developments are afoot, and the Captain of the darkmatter starcraft and his crew are shocked by the revelation. Read more about what happens next!

If you haven't read the earlier stories, here is the chronology:

First Part: http://goo.gl/jWKDn2
Part 2 : http://goo.gl/8wRbHE
Part 3 : http://goo.gl/eIGokJ
Part 4 : http://goo.gl/gaEZS0
Part 5 : http://goo.gl/bXYxiy
Part 6 : http://goo.gl/mmVbF9
Part 7 : http://goo.gl/i3DDVi
Part 8  : http://goo.gl/IoWcF0
Part 9  : http://goo.gl/B6OQOG
Part 10: http://goo.gl/IP0ORs
Part 11: http://goo.gl/Gn8RDY
Part 12: http://goo.gl/0zEqPI
Part 13: http://goo.gl/dXTYrs

( Notifying select people please let me know if you wish to get / opt out of notifications )

Mission impossible is a series set in the distant future. If you like science fiction and space opera, this may be an interesting read.

#sciencefiction #scifi #flashfiction  ___

posted image

2014-10-15 14:52:09 (0 comments, 1 reshares, 7 +1s)Open 

If you think the weather’s acting strange, you’re correct. Extreme weather in the United States is trending upward, and human-caused climate change has already been blamed for much of it – most recently in connection with the California drought.

But along with extreme weather we’re also getting extreme contrasts. What on Earth is going on when New York gets endless rain and San Francisco none, and when one part of the country is freezing while another suffers under record heat?

You guessed it, rising temperatures have something to do with it – and here’s how.

Rain patterns are changing

In the Northeast, the combination of more moisture in the atmosphere from a warmer world and changes in circulation patterns are bringing more rain. In the Southwest, meanwhile, rainfall is suppressed by a northward expansion of high pressure in the subtropics.
The cripp... more »

If you think the weather’s acting strange, you’re correct. Extreme weather in the United States is trending upward, and human-caused climate change has already been blamed for much of it – most recently in connection with the California drought.

But along with extreme weather we’re also getting extreme contrasts. What on Earth is going on when New York gets endless rain and San Francisco none, and when one part of the country is freezing while another suffers under record heat?

You guessed it, rising temperatures have something to do with it – and here’s how.

Rain patterns are changing

In the Northeast, the combination of more moisture in the atmosphere from a warmer world and changes in circulation patterns are bringing more rain. In the Southwest, meanwhile, rainfall is suppressed by a northward expansion of high pressure in the subtropics.

The crippling drought now plaguing California is due to a persistent high pressure system off of the coast that is deflecting storms away from the region. A recent study shows that these systems are much more likely to occur with human-caused climate change.

Rain is more intense

Heavy downpours are controlled by cloud mechanisms and moisture content, which are both changing as global temperatures rise. Clouds that can dump a lot of rain are more common in a warmer atmosphere.

More evaporation has led to more moisture in the atmosphere which, in turn, leads to more intense rainfall when it rains. That helps explain why the entire U.S. is experiencing more heavy downpours – even in the drought-stricken West.

Droughts are taking hold

Rain and evaporation will determine how moist the soil will be. So although evaporation is increasing nationwide due to warmer temperatures, higher precipitation in the Northeast yields a net increase in soil moisture in that part of the country.

In the Southwest, on the other hand, the drop in overall precipitation brings drier conditions that spawn or magnify drought. As the soil there dries out, the incoming sunlight will heat the ground instead of evaporating water from the soil. This creates a vicious cycle of more heat and less rain.

Flooding is more common

The potential for flooding, meanwhile, depends a lot on what's going on with the soil. The higher the soil moisture content, the higher the chance that there will be more runoff from rainfall.

Because soil moisture is increasing in the Northeast, flooding events are on the rise. Fortunately for the region, many heavy rain storms occur in the summer and fall when soil moisture is low and the ground can absorb more water.

On the other hand, the sea level has risen by a foot since the 1900s in the Northeast. That, in turn, contributes to more flooding.

Disaster costs are also rising – but there is hope

In 2013, intense storms, severe regional drought, and extreme flooding led to more than $9 billion in disaster costs in the U.S. alone. It’s uncertain what the total bill was if you factor in ongoing agriculture, human health and infrastructure losses from changing weather conditions

Unless we curb emissions of heat-trapping gases, scientists expect these trends to continue and worsen – and the contrast between wet and dry areas of the U.S. will likely become even sharper. Our hope now is that the push for climate action amps up so we can finally set ourselves on a better path for the future.___

posted image

2014-09-30 07:11:11 (0 comments, 0 reshares, 1 +1s)Open 

The +NovoPulp AUTUMN SALE Ends Oct 7th - SAVE UP TO 40%

On September 7th we launched our Autumn Sale after the NovoPulp submission deadlines closed for 2014. I'm please to say that many of you ventured out a got a copy of NovoPulp, so thank you for all the support :D

I hope you are enjoying the book and we would welcome more reviews at Goodreads (http://goo.gl/30yIEH) and Amazon (http://goo.gl/4j6ZcH) when you are done.

For those who haven't got a copy yet the NovoPulp Autumn Sale is due to end in one week on Tuesday October 7th, so I wanted to let everyone know that the end date was coming up.

Click here to read more about the book, including reviews:
http://www.novopulp.com/content/novopulp-20132014-anthology

Click here to get your copy of NovoPulp:
http://www.NovoPulp.com/store
more »

The +NovoPulp AUTUMN SALE Ends Oct 7th - SAVE UP TO 40%

On September 7th we launched our Autumn Sale after the NovoPulp submission deadlines closed for 2014. I'm please to say that many of you ventured out a got a copy of NovoPulp, so thank you for all the support :D

I hope you are enjoying the book and we would welcome more reviews at Goodreads (http://goo.gl/30yIEH) and Amazon (http://goo.gl/4j6ZcH) when you are done.

For those who haven't got a copy yet the NovoPulp Autumn Sale is due to end in one week on Tuesday October 7th, so I wanted to let everyone know that the end date was coming up.

Click here to read more about the book, including reviews:
http://www.novopulp.com/content/novopulp-20132014-anthology

Click here to get your copy of NovoPulp:
http://www.NovoPulp.com/store

Happy Reading! :D

#booksale   #bookreview   #scifi   #sciencefiction   #speculativefiction   #novopulp  ___

posted image

2014-09-16 12:54:47 (0 comments, 1 reshares, 5 +1s)Open 

Dranke and his crew return home : The story continues, now you can read part 5. Back by popular demand!

If you haven't read the earlier stories, here is the chronology:

First Part: http://goo.gl/jWKDn2

Part 2: http://goo.gl/8wRbHE

Part 3: http://goo.gl/eIGokJ

Part 4: http://goo.gl/gaEZS0

Part 5: http://goo.gl/bXYxiy (current)

( notifying select people please let me know if you wish to get / opt out of notifications )

Mission impossible is a now a five-part flash fiction series set in the distant future. If you like science fiction and space opera, this may be an interesting read.

Tagging +Heidi Bouman +Micha Fire +Yoon-Mi Kim +Yoongyee Poh +Robin Laurén +Harry Tuttle +Randy Culler +L.S. Cody +Basement Kitty +Martin Conterez +Brigitte W. +Charles Strebor +Elizabeth Therese Niwel +David Preston... more »

Dranke and his crew return home : The story continues, now you can read part 5. Back by popular demand!

If you haven't read the earlier stories, here is the chronology:

First Part: http://goo.gl/jWKDn2

Part 2: http://goo.gl/8wRbHE

Part 3: http://goo.gl/eIGokJ

Part 4: http://goo.gl/gaEZS0

Part 5: http://goo.gl/bXYxiy (current)

( notifying select people please let me know if you wish to get / opt out of notifications )

Mission impossible is a now a five-part flash fiction series set in the distant future. If you like science fiction and space opera, this may be an interesting read.

Tagging +Heidi Bouman +Micha Fire +Yoon-Mi Kim +Yoongyee Poh +Robin Laurén +Harry Tuttle +Randy Culler +L.S. Cody +Basement Kitty +Martin Conterez +Brigitte W. +Charles Strebor +Elizabeth Therese Niwel +David Preston +Marjorie Fowler +Mike Mackley +Able Lawrence +Jyoti Q Dahiya +Gita Jaisinghani +NovoPulp +Philip Middleton +E.E. Giorgi  - Thanks for the support and hope you like the new story!

#scifi #sciencefiction #flashfiction #blog___

posted image

2014-09-15 19:21:47 (4 comments, 14 reshares, 42 +1s)Open 

The Mecanum wheel
 A design for a wheel which can move a vehicle in any direction. It is sometimes called the Ilon wheel after its Swedish inventor, Bengt Ilon, who came up with the idea in 1973 when he was an engineer with the Swedish company Mecanum AB.
It is a conventional wheel with a series of rollers attached to its circumference. These rollers typically each have an axis of rotation at 45° to the plane of the wheel and at 45° to a line through the centre of the roller parallel to the axis of rotation of the wheel. By alternating wheels with left and right-handed rollers, in such a way that each wheel applies force roughly at right angles to the wheelbase diagonal the wheel is on, the vehicle is stable and can be made to move in any direction and turn by varying the speed and direction of rotation of each wheel. Moving all four wheels in the same direction causes forward orbac... more »

The Mecanum wheel
 A design for a wheel which can move a vehicle in any direction. It is sometimes called the Ilon wheel after its Swedish inventor, Bengt Ilon, who came up with the idea in 1973 when he was an engineer with the Swedish company Mecanum AB.
It is a conventional wheel with a series of rollers attached to its circumference. These rollers typically each have an axis of rotation at 45° to the plane of the wheel and at 45° to a line through the centre of the roller parallel to the axis of rotation of the wheel. By alternating wheels with left and right-handed rollers, in such a way that each wheel applies force roughly at right angles to the wheelbase diagonal the wheel is on, the vehicle is stable and can be made to move in any direction and turn by varying the speed and direction of rotation of each wheel. Moving all four wheels in the same direction causes forward or backward movement, running the wheels on one side in the opposite direction to those on the other side causes rotation of the vehicle, and running the wheels on one diagonal in the opposite direction to those on the other diagonal causes sideways movement. Combinations of these wheel motions allow for vehicle motion in any direction with any vehicle rotation.

http://en.wikipedia.org/wiki/Mecanum_wheel___

2014-09-15 14:20:05 (2 comments, 0 reshares, 15 +1s)Open 

Request members to please fill the enclosed questionnaire : We are carrying out an exercise to get some basic data. No personal details (including name) are asked for. It will help us in being able to do a better job in the community. 

You only need to click the enclosed picture of the questionnaire. Filling it up will not take more than a couple of minutes since its only a clickthrough. 

We need your help!
We decided to create a short questionnaire to learn a bit more about our members and hopefully improve our services here. Please do reply (but only once) so we can get a basic overview. This is 100% anonymous.

To participate, simply click on the image below and the questionnaire will open. There aren't too many questions, so I believe you will use less than five minutes to complete it.

So, what do we do with the data? Well, we create some handy-dandy tables to structure the replies and we discuss eagerly "backstage" to see how we can improve. As this is an anonymous questionnaire, we won't be able to get back to you for follow-ups.

Every reply is of great value to us so please do click below to get started.___Request members to please fill the enclosed questionnaire : We are carrying out an exercise to get some basic data. No personal details (including name) are asked for. It will help us in being able to do a better job in the community. 

You only need to click the enclosed picture of the questionnaire. Filling it up will not take more than a couple of minutes since its only a clickthrough. 

posted image

2014-09-11 08:02:09 (0 comments, 0 reshares, 1 +1s)Open 

STARTS TODAY: +NovoPulp AUTUMN SALE - SAVE UP TO 40% on the 2013/2014 Anthology!

Discover why we are celebrating :D

If you haven't got one yet, support your fellow G+ authors and artists and get your copy of NovoPulp today! We have reduced the list price on the following editions...

Learn More:
http://www.novopulp.com/content/novopulp-autumn-sale-save-40-20132014-anthology

#booksale   #novopulp   #scifi   #sciencefiction   #speculativefiction  +#HermitStudio 

STARTS TODAY: +NovoPulp AUTUMN SALE - SAVE UP TO 40% on the 2013/2014 Anthology!

Discover why we are celebrating :D

If you haven't got one yet, support your fellow G+ authors and artists and get your copy of NovoPulp today! We have reduced the list price on the following editions...

Learn More:
http://www.novopulp.com/content/novopulp-autumn-sale-save-40-20132014-anthology

#booksale   #novopulp   #scifi   #sciencefiction   #speculativefiction  +#HermitStudio ___

posted image

2014-09-03 09:14:21 (0 comments, 0 reshares, 6 +1s)Open 

Mission Impossible : My new flashfiction story up on my blog www.lacerantplainer.com

Hope you like it.





#sciencefiction #scifi  

Mission Impossible : My new flashfiction story up on my blog www.lacerantplainer.com

Hope you like it.





#sciencefiction #scifi  ___

posted image

2014-08-31 19:00:41 (1 comments, 0 reshares, 16 +1s)Open 

Theft

So sci fi August is over for me. While browsing the hashtag for others' works, I came across a community moderator who, instead of resharing two of my images, took poor quality screen shots of my work, cropped them so my old JMD signature I used to use on my images was really visible, and then posted to her community.

My text is there, my name is there, but the image is her screen shot rather than my work. She hasn't responded.

Lame.

This image, btw, it's #SOOC, from my S5.

Have a good day/evening/morning!

Site || www.mobilography.net
Page || +Mobilography
Community || http://goo.gl/ROrYI0
Tags || #Mobilography #MobilePhotography #SmartphonePhotography

Theft

So sci fi August is over for me. While browsing the hashtag for others' works, I came across a community moderator who, instead of resharing two of my images, took poor quality screen shots of my work, cropped them so my old JMD signature I used to use on my images was really visible, and then posted to her community.

My text is there, my name is there, but the image is her screen shot rather than my work. She hasn't responded.

Lame.

This image, btw, it's #SOOC, from my S5.

Have a good day/evening/morning!

Site || www.mobilography.net
Page || +Mobilography
Community || http://goo.gl/ROrYI0
Tags || #Mobilography #MobilePhotography #SmartphonePhotography___

posted image

2014-08-31 19:00:41 (0 comments, 0 reshares, 3 +1s)Open 

Theft

So sci fi August is over for me. While browsing the hashtag for others' works, I came across a community moderator who, instead of resharing two of my images, took poor quality screen shots of my work, cropped them so my old JMD signature I used to use on my images was really visible, and then posted to her community.

My text is there, my name is there, but the image is her screen shot rather than my work. She hasn't responded.

Lame.

This image, btw, it's #SOOC, from my S5.

Have a good day/evening/morning!

Site || www.mobilography.net
Page || +Mobilography
Community || http://goo.gl/ROrYI0
Tags || #Mobilography #MobilePhotography #SmartphonePhotography

Theft

So sci fi August is over for me. While browsing the hashtag for others' works, I came across a community moderator who, instead of resharing two of my images, took poor quality screen shots of my work, cropped them so my old JMD signature I used to use on my images was really visible, and then posted to her community.

My text is there, my name is there, but the image is her screen shot rather than my work. She hasn't responded.

Lame.

This image, btw, it's #SOOC, from my S5.

Have a good day/evening/morning!

Site || www.mobilography.net
Page || +Mobilography
Community || http://goo.gl/ROrYI0
Tags || #Mobilography #MobilePhotography #SmartphonePhotography___

posted image

2014-08-31 19:00:37 (0 comments, 0 reshares, 3 +1s)Open 

Theft

So sci fi August is over for me. While browsing the hashtag for others' works, I came across a community moderator who, instead of resharing two of my images, took poor quality screen shots of my work, cropped them so my old JMD signature I used to use on my images was really visible, and then posted to her community.

My text is there, my name is there, but the image is her screen shot rather than my work. She hasn't responded.

Lame.

This image, btw, it's #SOOC, from my S5.

Have a good day/evening/morning!

Site || www.mobilography.net
Page || +Mobilography
Community || http://goo.gl/ROrYI0
Tags || #Mobilography #MobilePhotography #SmartphonePhotography

Theft

So sci fi August is over for me. While browsing the hashtag for others' works, I came across a community moderator who, instead of resharing two of my images, took poor quality screen shots of my work, cropped them so my old JMD signature I used to use on my images was really visible, and then posted to her community.

My text is there, my name is there, but the image is her screen shot rather than my work. She hasn't responded.

Lame.

This image, btw, it's #SOOC, from my S5.

Have a good day/evening/morning!

Site || www.mobilography.net
Page || +Mobilography
Community || http://goo.gl/ROrYI0
Tags || #Mobilography #MobilePhotography #SmartphonePhotography___

posted image

2014-08-30 09:25:25 (2 comments, 2 reshares, 24 +1s)Open 

Day 21

Adrift

I lay there in space, drifting. The hull is ruptured. My body broken. Awaiting the final blast.

SciFi August Continues!

Last year's SciFi August was great fun, and quite a few of you participated, so it had to happen again. For this month of August I will be exploring outer space, inner space, hyper space and other SciFi spaces and places on my appropriately named Galaxy S5. I would very much like it if you joined in on the fun.

Tag any of your creative work that you created during August with the tag:

#SciFiAugust.

These can be in the forms of imagery, painting, story, poetry, sculpture, you name it. Just keep it constrained to science fiction and to August.

Mention me in your post. It would be nice to see all the fabulous work I anticipate will... more »

Day 21

Adrift

I lay there in space, drifting. The hull is ruptured. My body broken. Awaiting the final blast.

SciFi August Continues!

Last year's SciFi August was great fun, and quite a few of you participated, so it had to happen again. For this month of August I will be exploring outer space, inner space, hyper space and other SciFi spaces and places on my appropriately named Galaxy S5. I would very much like it if you joined in on the fun.

Tag any of your creative work that you created during August with the tag:

#SciFiAugust.

These can be in the forms of imagery, painting, story, poetry, sculpture, you name it. Just keep it constrained to science fiction and to August.

Mention me in your post. It would be nice to see all the fabulous work I anticipate will be created and shared.

#SciFi #ScienceFiction #Mobilography #MobilePhotography #SmartphonePhotography #S5 #ShortStory #Fiction

#AlienAbductionFriday +Alex Lapidus
+Irene Kato +Heiko Mahr
+Janice Hackney
+Jetski Jones
+Alien Abduction Friday

#owcbn #gplusaliennation___

2014-08-21 10:42:07 (0 comments, 0 reshares, 9 +1s)Open 

A new Space Opera community : +John Ward and +Lacerant Plainer and other SF authors have got together to create an interesting community, a sub-genre which may be of interest to you good folk. Check it out!

A new Space Opera community : +John Ward and +Lacerant Plainer and other SF authors have got together to create an interesting community, a sub-genre which may be of interest to you good folk. Check it out!___

posted image

2014-08-20 17:21:36 (3 comments, 1 reshares, 20 +1s)Open 

Science Posts : are often about new discoveries or about science and related technology. I post a lot within this area. I have often found that while my posts have engagement, it gets hard to explain why the commenter has to stick to the science.

Why can't I talk about my experience : Of course you can, but one has to preface it by saying it is my experience, or its not something backed by research. And be ready to be called on it. Very often commenters will continue to talk about their experiences as if that 'proves' something. Experiences do not make science. It is an experience. What you observe may not be what another person observes. Or it may not be repeatable. (See the Scientific method here http://en.citizendium.org/wiki/scientific_method )

How to make your point scientifically : Science posts may be wrong. That is the nature of science.... more »

Science Posts : are often about new discoveries or about science and related technology. I post a lot within this area. I have often found that while my posts have engagement, it gets hard to explain why the commenter has to stick to the science.

Why can't I talk about my experience : Of course you can, but one has to preface it by saying it is my experience, or its not something backed by research. And be ready to be called on it. Very often commenters will continue to talk about their experiences as if that 'proves' something. Experiences do not make science. It is an experience. What you observe may not be what another person observes. Or it may not be repeatable. (See the Scientific method here http://en.citizendium.org/wiki/scientific_method )

How to make your point scientifically : Science posts may be wrong. That is the nature of science. Sometimes the science may be based on hypothesis which may have counterpoints, but these are continuously tested and refined. Theories are based on observations, so they have a body of work behind them. These are not 'guesses.' Be respectful to the original poster, since often science posts have a lot of work and research which has gone into it. Make your point with research from reputable sites and link back to the research. If you are not sure about it's veracity, ask an expert (There are many on Google Plus).

Does a study make it true : This one is fraught with issues. Often studies may not have a large enough sample size. Or the conclusions one may draw from a study may not be correct. Most scientists are extremely wary of making assertions, even in their own field. They know that there are a lot of variables which need to be taken into account. Science begins with skepticism. Every study needs to be evaluated.

Making your point : Oftentimes, you can make your point with just one comment on a post. Sometimes you make need to make a followup comment. Don't keep repeating your point, making the same assertion again and again. Talking over people does not make you right. It only makes them lose respect for what you are trying to say. Calling someone names is the lowest form of engagement. Do not let it sink to that level.

'Converting' someone : Don't comment to 'convert' someone to your point of view. Science is not about who talks louder or says it more often or cites more studies. Its about relevance, facts, study and repetition. (See my earlier post here How to do science : https://plus.google.com/110884604033336753419/posts/VJrxUt6gUmi )

Science doesn't play favorites : Mentioning Einstein does not make you right. Any scientist would tell you that there are things they do not know. The journey in science is the finding out. One has to live with things which are still not known, and scientists are the best at this way of being.

Join in the journey of finding out, rather than knowing : Science is fascinating. It is incredible. It really is. There is so much I learn just by reading and writing (researching) about how things work, its really something everyone should indulge in. It's brain food. Knowing something is the end of asking. Revel in the journey, not the end.

#science #howto #googleplus  ___

posted image

2014-08-01 10:09:01 (1 comments, 0 reshares, 13 +1s)Open 

How to Science : Recently, I have been trolled pinged by a number of people who have asked me to talk about perpetual motion machines, thunderbolt universes, how magnetism affects mood, niburu or somesuch and a lot of other such stuff. One chap even 'debunked' the second law of thermodynamics based on a youtube video.... (keep your baloney detection kit ready).

Why science is important : Science is a method. Yes, we make mistakes, make assumptions, make hypothesis, which when supported by observations are elevated to theories.... and here is the main thing, we have to have observations that are repeatable, free of bias and need to be analyzed. This is an iterative process and involves external checks and balances, data recording and rigor. The first such process recorded (from Wikipedia) In the 7th century BCE, Daniel, a Jewish captive of the Babylonian king Nebuchadnezzar,... more »

How to Science : Recently, I have been trolled pinged by a number of people who have asked me to talk about perpetual motion machines, thunderbolt universes, how magnetism affects mood, niburu or somesuch and a lot of other such stuff. One chap even 'debunked' the second law of thermodynamics based on a youtube video.... (keep your baloney detection kit ready).

Why science is important : Science is a method. Yes, we make mistakes, make assumptions, make hypothesis, which when supported by observations are elevated to theories.... and here is the main thing, we have to have observations that are repeatable, free of bias and need to be analyzed. This is an iterative process and involves external checks and balances, data recording and rigor. The first such process recorded (from Wikipedia) In the 7th century BCE, Daniel, a Jewish captive of the Babylonian king Nebuchadnezzar, conducted a scientific experiment complete with a hypothesis, a control group, a treatment group, and a conclusion.

Is there a way to find verifiable information : Sure, but it still needs to have rigor. A youtube reference is not a good benchmark. Most news sites are also not good indicators. Reputed science sites, reference papers and peer reviewed publications are good places to look. Even then not all of them are the best quality.

Why shouldn't I believe in flying chariots? The Nazca lines prove that chariots can fly : You are free to believe whatever you want. But remember, it is not something anyone will take seriously since your claim is based on belief, not proof or a method which involves rigor, repeatability and removal of bias.

Who should I ask? : Ask people who are experts in their field. There are quality scientists, chemists, biologists, physicists here on G+.... reach out and ask them. There are also sources like askamathematician where you can post your queries. They really do respond.

More about the Scientific method: https://en.wikipedia.org/wiki/Scientific_method

The scientific process: http://www2.nau.edu/~gaud/bio372/class/behavior/sciproc.htm

The real process: http://undsci.berkeley.edu/article/0_0_0/howscienceworks_02

Comic from http://homepages.wmich.edu/~korista/sci-pseudo-rel.html

#science #rant #commenting  ___

2014-07-24 12:58:07 (117 comments, 58 reshares, 144 +1s)Open 

2014 Super Sci-FI Circle : No, the Sky is not Falling!!! Also the Gravity is not sucking you in... please +1 this post to support it or you may have to take a trip in Snowpiercer, no need to thank me. Please reshare if you think this is a worthwhile circle. If you have been notified, you are in the circle!

All the people in this circle are linked to our community (see link further down). As usual, please tag and recommend anyone who you think should be in this circle. Live long and prosper!

Sci-FI Community here: http://goo.gl/s1NVd  
Science Fiction Pics: http://goo.gl/sOSPK5
Mighty Shiny Browncoats : http://goo.gl/9osg1t
Doctor Who : http://goo.gl/z3uWX3
Ultimate Star Wars : http://goo.gl/Wu8bv6
Ultimate Star Trek : http://goo.gl/JJPql9
Science on G+ community here: http://goo.gl/46uFH

#sciencefiction #sf #scifi  

2014 Super Sci-FI Circle : No, the Sky is not Falling!!! Also the Gravity is not sucking you in... please +1 this post to support it or you may have to take a trip in Snowpiercer, no need to thank me. Please reshare if you think this is a worthwhile circle. If you have been notified, you are in the circle!

All the people in this circle are linked to our community (see link further down). As usual, please tag and recommend anyone who you think should be in this circle. Live long and prosper!

Sci-FI Community here: http://goo.gl/s1NVd  
Science Fiction Pics: http://goo.gl/sOSPK5
Mighty Shiny Browncoats : http://goo.gl/9osg1t
Doctor Who : http://goo.gl/z3uWX3
Ultimate Star Wars : http://goo.gl/Wu8bv6
Ultimate Star Trek : http://goo.gl/JJPql9
Science on G+ community here: http://goo.gl/46uFH

#sciencefiction #sf #scifi  ___

posted image

2014-07-18 19:45:27 (1 comments, 0 reshares, 8 +1s)Open 

Calling All Geeks: Can I borrow five bucks? =)
TLDR: http://bit.ly/btckiva .

First off I want to apologize if this comes across as being spammy. I don't generally post things here that are self promotional but in this case I hope you'll all forgive me!

As some of you know, I quit my full time gig over a year ago to start my own business; a worker-owned tech support cooperative based in Somerville, MA called +Boston TechCollective. It's been a hell of a ride and I love not only what I do but my co-owners are some of the best people I've ever worked with!

We've grown considerably in a little over a year and at this point we could really use two people manning the shop and two people doing on-site/remote support. There are only three of us though! As you might imagine, it's stretching us very thin. We've got too much work but note... more »

Calling All Geeks: Can I borrow five bucks? =)
TLDR: http://bit.ly/btckiva .

First off I want to apologize if this comes across as being spammy. I don't generally post things here that are self promotional but in this case I hope you'll all forgive me!

As some of you know, I quit my full time gig over a year ago to start my own business; a worker-owned tech support cooperative based in Somerville, MA called +Boston TechCollective. It's been a hell of a ride and I love not only what I do but my co-owners are some of the best people I've ever worked with!

We've grown considerably in a little over a year and at this point we could really use two people manning the shop and two people doing on-site/remote support. There are only three of us though! As you might imagine, it's stretching us very thin. We've got too much work but not enough revenue to justify hiring a part time person to lighten the load.

That's where Kiva comes in. It's a social lending site that allows people and organizations to get loans of up to $5000. Anyone who wants to support a project will eventually get their money back once the loan is repaid.

For us this relatively small amount of money will mean we can hire a part timer for our shop. That will mean that my co-owner +Yochai Gal will be freed up to do more on-site work (my primary job) which will generate more revenue. In the shop it would mean that +Matt Gabrenya would get some breathing room as well. Eventually we hope to make this part timer a member of our coop which would obviously be good for them as well!

In short it would give us the small boost we need to really get ourselves established!

So What Do You Want From Me?

All I ask is that if you can lend us even five bucks it would be wonderful. I know that times are tough so even if you can't lend, a reshare would be fantastic too!

Here is the link: http://bit.ly/btckiva

Thanks in advance to all of you. From the amazing crew that participates in my #gqotd  to the writers and assorted folks who follow my #gsotd  posts to the friends I've made via Hangouts I feel grateful to you all regardless!___

posted image

2014-07-18 06:28:56 (5 comments, 0 reshares, 11 +1s)Open 

64 Percent of Women Scientists Say They've Been Sexually Harassed Doing Field Work

"Most women working in the sciences face sexual assault and harassment while conducting field work, according to a study released Wednesday that is the first to investigate the subject.

The report surveyed 516 women (and 142 men) working in various scientific fields, including archeology, anthropology, and biology. Sixty-four percent of the women said they had been sexually harassed while working at field sites, and one out of five said they had been victims of sexual assault. The study found that the harassers and assailants were usually supervisors. Ninety percent of the women who were harassed were young undergraduates, post-graduates, or post-doctoral students.

"Our main findings…suggest that at least some field sites are not safe, nor inclusive," Kate Clancy,t... more »

64 Percent of Women Scientists Say They've Been Sexually Harassed Doing Field Work

"Most women working in the sciences face sexual assault and harassment while conducting field work, according to a study released Wednesday that is the first to investigate the subject.

The report surveyed 516 women (and 142 men) working in various scientific fields, including archeology, anthropology, and biology. Sixty-four percent of the women said they had been sexually harassed while working at field sites, and one out of five said they had been victims of sexual assault. The study found that the harassers and assailants were usually supervisors. Ninety percent of the women who were harassed were young undergraduates, post-graduates, or post-doctoral students.

"Our main findings…suggest that at least some field sites are not safe, nor inclusive," Kate Clancy, the lead author of the study, said in a statement. "We worry this is at least one mechanism driving women from science."

Link to the study abstract at PLOS One: http://goo.gl/HXFH0o___

posted image

2014-06-30 20:20:25 (2 comments, 1 reshares, 14 +1s)Open 

via +SciFi Author: Lacerant Plainer .... if you like the art, do buy some. +Mara Mascaro makes some wonderful art. And plus it's wolverine!

Mara's art for sale

So. I have an appointment for a so-called ENS (Empty - Nose Syndrome) specialist somewhere in Germany at the beginning of Semptember, and it's gonna cost me 650ish euros (for medical exams) + Idontknowhowmuch for trip&hotel. Probably around 1000 euros.

I don't have that much handy at the moment (I have so many damn medical expenses...), and I was doubtful whether to  go or not. I talked with +Di Cleverly and she suggested me to make some drawings of Gplus users and sell them.
So... I thought: It's been awhile since I did some art, and it would probably do me good (it would help me not being obsessed with my nose issues all the time).
What if someone wants to buy some art from me and donate for my exams? Would anyone want to buy a chibi portrait of themselves for their profile pictures?

The formula could be something like this:

- €10 A quick Post-it mini drawing (only digital) NEW;

- €20 for a quick pen sketch (I can send you the original drawing, if you want - if you pay S&H);
- €50 for a more detailed black/white drawing (same as before);
- €85 for a pencil/marker drawing (original sent if you want...blah blah blah)

You can pay directly on my Paypal account: phiria@fastwebnet.it specifying what kind of drawing you'd like, and linking your g+ page (and pictures).
Thank you very much for everything :)

These are my art albums, if you want to take a look:
https://plus.google.com/u/0/photos/+phiria/albums/5657502313994438577
https://plus.google.com/u/0/photos/+phiria/albums/5627780694772252321___via +SciFi Author: Lacerant Plainer .... if you like the art, do buy some. +Mara Mascaro makes some wonderful art. And plus it's wolverine!

posted image

2014-06-20 12:14:48 (44 comments, 9 reshares, 96 +1s)Open 

Who do you think is the ultimate Science Fiction geek? Feel free to tag mention anyone you remember. I would mention the following names to start with (In no way an exhaustive list).... +Christopher Wilke +Charlie Hoover +katya austin +Ben Nitschke +César Bustíos Benites +Cliff Loresco +Dirk Reul +David Foster +Ted Ewen +Christine Evans +Frank Elliott +Vicky Gallardo +Jan Schellenberger +John Ward +Justin Chung +Knut Torgersen +Lacerant Plainer +Michelle Quevedo +Chris Worth +Niamh Brown +Ted Ewen +Roger Stegeby +Gary Ray R +Scott Cramer +Massimo Luciani +João Rita...... who would your list be?


Image source: http://images7.alphacoders.com/309/309037.jpg

Who do you think is the ultimate Science Fiction geek? Feel free to tag mention anyone you remember. I would mention the following names to start with (In no way an exhaustive list).... +Christopher Wilke +Charlie Hoover +katya austin +Ben Nitschke +César Bustíos Benites +Cliff Loresco +Dirk Reul +David Foster +Ted Ewen +Christine Evans +Frank Elliott +Vicky Gallardo +Jan Schellenberger +John Ward +Justin Chung +Knut Torgersen +Lacerant Plainer +Michelle Quevedo +Chris Worth +Niamh Brown +Ted Ewen +Roger Stegeby +Gary Ray R +Scott Cramer +Massimo Luciani +João Rita...... who would your list be?


Image source: http://images7.alphacoders.com/309/309037.jpg___

2014-06-19 13:39:49 (71 comments, 57 reshares, 93 +1s)Open 

TESLA Super Science Circle 2014 - June Edition!!!! : A quality circle curated carefully and tended since 2011. Who is in this circle?  people who are either involved in science, love science or are active on the Science on G+ community. Community link is here http://goo.gl/46uFH and the Page is +Science on G+!

Have you wondered where one can meet with like-minded people who love science and like to read about the real stuff? This is the ultimate SUL on science.... add and share to keep it alive.
--------------------------------------------------------------------------------------------------
Want to nominate someone? Please do so in comments. If you want to recommend something let us know. People who are notified are part of the circle.

#science #tesla #scienceongplus #scienceeveryday 

TESLA Super Science Circle 2014 - June Edition!!!! : A quality circle curated carefully and tended since 2011. Who is in this circle?  people who are either involved in science, love science or are active on the Science on G+ community. Community link is here http://goo.gl/46uFH and the Page is +Science on G+!

Have you wondered where one can meet with like-minded people who love science and like to read about the real stuff? This is the ultimate SUL on science.... add and share to keep it alive.
--------------------------------------------------------------------------------------------------
Want to nominate someone? Please do so in comments. If you want to recommend something let us know. People who are notified are part of the circle.

#science #tesla #scienceongplus #scienceeveryday ___

posted image

2014-06-02 13:01:13 (2 comments, 3 reshares, 29 +1s)Open 

From +Jonah Miller .... how planets form.

How Planets Form

Many months ago, +Richard Green  posted an article  that described how life on a toroidal planet like the one shown in figure 2 would work. (You can find the post here: https://plus.google.com/101584889282878921052/posts/3g1HbzqGNok) The discussion in the comments eventually led to speculation as to whether or not it’s possible for such a toroidal structure to actually form. That discussion is what inspired this post. Today, I’ll tell you about the nebular hypothesis [1], astrophysicists’ current best theory about how planets form. (Fun historical fact: One of the first people to propose the nebular hypothesis was philosopher Immanuel Kant.)

(Those who wish to view this post in blog form can find it here: http://www.thephysicsmill.com/2014/06/01/planets-form/)

In The Beginning, Dust

Our solar system probably started as a huge cloud of gas and dust, like a nebula (hence the name “nebular hypothesis”) [2]. The particles of dust and wisps of gas gravitationally attracted each other, and other time, the denser clouds of matter collapsed into themselves. As the density of each cloud increased, so did its temperature. Eventually it became so dense and so hot that it became what we call a _protostar_—a young, vigorous, and confused star---like the one shown in figure 3.

But not all of the gas and dust had become part of the protostar yet. As the protostar began to age, it began to attract and eat the remainder of the gas. Over time, as the remaining gas fell into the star, it formed a disk, as shown below. Near where the disk touched the star, the compression of its gas superheated it, generating jets of energy pointing out from the star. (For experts: The reason the gas formed a disk is because it had to jet its angular momentum before it could fall in.)

It's All In The Disk

Let’s talk about the disk some. For reasons that will soon become clear, these disks are called protoplanetary disks [4]. Not everything in the disk orbited around the star at the same speed. As dust and gas particles whizzed past each other, sometimes they collided…and sometimes they stuck to each other, forming bigger particles.

Over millions of years and trillions of sticky collisions, these dust particles grew to several kilometers in diameter, forming small objects that we call planetesimals [5]. At this size, these planetesimals had a gravitational pull strong enough to attract many dust particles, allowing them to grow even faster. Very likely, planetesimals also collided with each other to form even larger objects. Eventually, these bodies were large enough to be called planets. Figure 3 shows a protostar surrounded by a protoplanetary disk.

This description tells us that toroidal planets cannot form. Planetesimals grow in size from collisions with dust and with each other. It seems very unlikely that they would form a shape other than “roughly spherical.”

The End of the Disk

After enough time passed and the protostar had feasted sufficiently, it would begin to emit a blast of light and subatomic particles called the solar wind [6]. This pressure blew away all remaining gas and dust in the disk that hadn’t already coalesced into large objects—leaving behind the collection of planets we know as the solar system.

Evidence

Obviously, we can’t look back in time to see how our own solar system formed. But we can look out into space to try and find solar systems that are in the process of forming. Protostars are easy to capture on film because the jets that they fire have a characteristic shape. We call them Herbig-Haro objects [7], and they produce some staggeringly beautiful images. See the photos in figure 4.

We can also observe the protoplanetary disks that are feeding the protostar. At first, they were hard to spot and we had to use some fancy image enhancement techniques to see them, as in figure 5. The top row shows the unenhanced images and the bottom row shows the enhanced images.

However, the Hubble got an upgrade, and we’ve been looking a while. We now have some much better images. Look at figure 6. See those little tadpole-like objects? Those are protoplanetary disks.

Hubble has now captured more than 150 images of protostars and their jets and disks. For your viewing pleasure, you can find a few more in figure 7.

Sadly, we’re far too distant to see if the disks contain planetesimals.

Issues

I want to emphasize that the nebular hypothesis of planet formation is currently still a hypothesis. It’s the best description we have for how planets formed in our solar system, but it still has some important issues that need to be worked out.

For example, we still don’t know how gas giants like Jupiter form. The planetesimal description relies on the planetesimals being made of rock, so this only describes the formation of terrestrial planets like Earth and Mars. Additionally, the nebular hypothesis predicts that planets should emerge from the disk in very erratic orbits. It’s not clear how they form their current elliptical orbits, which are very regular.

Only time will tell, I suppose, if the nebular hypothesis is correct.

Related Reading

1. Of course, you should read +Richard Green 's post on toroidal planets and the in-depth discussion in the comments. :) Find it here: https://plus.google.com/101584889282878921052/posts/3g1HbzqGNok

2. Black holes are surrounded by disks very similar to protoplanetary disks, called accretion disks. I wrote an article about these a while back: http://www.thephysicsmill.com/2013/11/09/accretion-disk/

3. About a year ago, astronomers snapped an image of what they think is a gas giant forming in an alien protoplanetary disk. I don’t know what this means for the nebular hypothesis, but it’s interesting. Here’s an article on this topic: http://www.wunderground.com/news/alien-planet-forming-20130228

4. At least one exoplanet is in a weird place if the nebular hypothesis is true. Here’s an article about that: http://www.slate.com/blogs/bad_astronomy/2013/12/09/exoplanet_direct_photo_of_a_planet_challenges_formation_theories.html

5. Stephen Hawking has a video on the formation of the solar system. Check it out: http://youtu.be/Uhy1fucSRQI

6. Space.com has a video on it too: http://www.space.com/16132-formation-planets-protoplanetary-disk.html

7. +Brown SpaceMan  wrote both a google+ post and a blog article on planet formation. Here they are:
https://plus.google.com/101475726498317079532/posts/WKppHQ4WZjX
http://www.brownspaceman.com/our-current-understanding-of-how-are-planets-formed/

8. For the brave, Professor Michael Richmond at the Rochester Institute of Technology wrote a nice little article on early star and planet formation for his astrophysics class. (I found a lot of the photos in this post there.) You can find it here: http://spiff.rit.edu/classes/phys301/lectures/star_birth/star_birth.html

9. Finally, for the academic among you, here are some review papers on protoplanetary disks:
http://weft.astro.washington.edu/courses/astro557/Wyatt_debris_disk_annrev.pdf
http://arxiv.org/pdf/astro-ph/0602041v1.pdf
http://arxiv.org/pdf/1103.0556.pdf
http://arxiv.org/pdf/astro-ph/0602619.pdf

References
[1] https://en.wikipedia.org/wiki/Planetary_formation
[2] https://en.wikipedia.org/wiki/Nebula
[3] https://en.wikipedia.org/wiki/Protostar
[4] https://en.wikipedia.org/wiki/Protoplanetary_disk
[5] https://en.wikipedia.org/wiki/Planetesimal
[6] https://en.wikipedia.org/wiki/Solar_wind
[7] https://en.wikipedia.org/wiki/Herbig%E2%80%93Haro_object

#ScienceSunday   #ScienceEveryDay   #Science   #Astronomy   #Astrophysics   #Space  ___From +Jonah Miller .... how planets form.

posted image

2014-06-01 10:51:52 (13 comments, 2 reshares, 34 +1s)Open 

Want to be a moderator? : You should be a Sci-Fi fan. Be able to spend time on the site. Catch spam. And do it for free. Interested people please PM me. Thanks!

Pic courtesy: http://goo.gl/ICF0u3

Want to be a moderator? : You should be a Sci-Fi fan. Be able to spend time on the site. Catch spam. And do it for free. Interested people please PM me. Thanks!

Pic courtesy: http://goo.gl/ICF0u3___

posted image

2014-05-23 14:04:17 (3 comments, 0 reshares, 28 +1s)Open 

http://www.pierre-drolet-sci-fi-museum.com/

http://www.pierre-drolet-sci-fi-museum.com/___

posted image

2014-05-23 13:55:45 (0 comments, 1 reshares, 15 +1s)Open 

http://www.pierre-drolet-sci-fi-museum.com/

Image of the Vrill Generation Fighter from The Gateway Novel by Pierre M Drolet

http://www.pierre-drolet-sci-fi-museum.com/

Image of the Vrill Generation Fighter from The Gateway Novel by Pierre M Drolet___

posted image

2014-05-20 03:51:25 (3 comments, 10 reshares, 31 +1s)Open 

Nothing Is More Fun than a Hypercube of Monkeys To reduce symmetries of a tesseract put a monkey at the center of each cube - how is that for a scientific recipe? Well you do end up cooking a 3D-printed sculpture of a 4D object. But jokes aside - math groups and symmetries are related and turns out a so called Quaternion Group was never visualized as a symmetric object. This is because the object should be 4-dimensional. But even those can be visualized as 3D projections and even 3D printed. 

From very fun and smart Henry Segerman and Vi Hart:

Nothing Is More Fun than a Hypercube of Monkeys
http://wolfr.am/1nfvxbo

The Quaternion Group as a Symmetry Group
http://arxiv.org/abs/1404.6596

  #mathematica #science #3D #3Dprinting #group #symmetry #monkey  

Nothing Is More Fun than a Hypercube of Monkeys To reduce symmetries of a tesseract put a monkey at the center of each cube - how is that for a scientific recipe? Well you do end up cooking a 3D-printed sculpture of a 4D object. But jokes aside - math groups and symmetries are related and turns out a so called Quaternion Group was never visualized as a symmetric object. This is because the object should be 4-dimensional. But even those can be visualized as 3D projections and even 3D printed. 

From very fun and smart Henry Segerman and Vi Hart:

Nothing Is More Fun than a Hypercube of Monkeys
http://wolfr.am/1nfvxbo

The Quaternion Group as a Symmetry Group
http://arxiv.org/abs/1404.6596

  #mathematica #science #3D #3Dprinting #group #symmetry #monkey  ___

Buttons

A special service of CircleCount.com is the following button.

The button shows the number of followers you have directly in a small button. You can add this button to your website, like the +1-Button of Google or the Like-Button of Facebook.






You can add this button directly in your website. For more information about the CircleCount Buttons and the description how to add them to another page click here.

Peter EdenistCircloscope