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Rich Pollett has been at 2 events

HostFollowersTitleDateGuestsLinks
Science on Google+609,343Please join us on 3/4 for a Developmental Science HOA with Dr.@102662655160025117683, Associate Professor of Psychology at @109618943120182321190 and director of the Developmental Language and Cognition Lab. Dr. Wagner studies how children acquire language, and in particular, how they learn about meaning. Her research has looks at various dimensions of meaning, including children's understanding of temporal and event semantics (especially the linguistic category of aspect), and their understanding of social indexical meanings coded in dialect and register. She conducts her studies at her lab on OSU's campus, and also at the Columbus Center of Science and Industry (@108175964516692755798). We will enable the Q & A app prior to the HOA so feel free to posts your questions on the event post or by using the app. RSVP “yes” to add this event to your calendar. *Relevant Links:* Faculty page: http://goo.gl/la3xYa  Lab page: http://goo.gl/CduTn0  Buckeye Language Network: http://goo.gl/YA6dNW  *Relevant Readings:* Wagner, L., Clopper, C. G., & Pate, J. (2014).  Children’s perception of dialect variation. _Journal of Child Language, 41,_ 1062 – 1084. http://goo.gl/aFFmPc Clopper, C., Rohrbeck, K. L. & Wagner, L. (2013). Perception of talker age by young adults with High-Functioning Autism. _Journal of Autism and Developmental Disorders, 43_, 134 - 146. http://goo.gl/oyf8uD  Wagner, L. (2010). Acquisition of Semantics. _Wiley Interdisciplinary Reviews: Cognitive Science, 1_ (4), 519 - 526. http://goo.gl/8H9rct Science HOAs2015-03-04 16:00:0075  
Joanne Manaster113,142Tune in on Tuesday, February 17th at 12 noon EST as Joanne and @104733415626297507218 with science writer and editor,@110337041053859181296  who edited Bill Nye's latest book, Undeniable: Evolution and the Science of Creation. We will talk about his work on the book as well his other numerous projects at Discover, American Scientist, Popular Science, and so much more! If you can't make it, visit the event page later to view the archived chat!Undeniable Science Edition! with Corey S. Powell2015-02-17 18:00:0045  

Shared Circles including Rich Pollett

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

Activity

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

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Top posts in the last 50 posts

Most comments: 26

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2015-05-12 02:04:55 (26 comments, 20 reshares, 56 +1s)Open 


Rocket-triggered lightning event

Because thunder and lightning are unpredictable, the phenomena are best studied using triggered events. The technique involves launching a small rocket trailing a grounded copper wire into thunderclouds. The copper wire provides a conductive channel and creates a predictable path for lightning, allowing scientists to precisely focus their instruments and perform repeatable experiments close to the discharge channel. Using SwRI internal research funding, Dr. Maher Dayeh led a proof-of-concept experiment to image the acoustic signature of thunder. SwRI conducted experiments at the International Center for Lightning Research and Testing at the University of Florida, Gainesville, taking advantage of the state’s claim to the most lightning strikes per year in the U.S.

To map the acoustic signatures of thunder, Dr. Maher Dayeh and his team setu... more »

Most reshares: 60

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2015-05-16 06:25:22 (2 comments, 60 reshares, 53 +1s)Open 


Spaceplasma

The upper atmosphere of the Sun is dominated by plasma filled magnetic loops (coronal loops) whose temperature and pressure vary over a wide range. The appearance of coronal loops follows the emergence of magnetic flux, which is generated by dynamo processes inside the Sun. Emerging flux regions (EFRs) appear when magnetic flux bundles emerge from the solar interior through the photosphere and into the upper atmosphere (chromosphere and the corona). The characteristic feature of EFR is the Ω-shaped loops (created by the magnetic buoyancy/Parker instability), they appear as developing bipolar sunspots in magnetograms, and as arch filament systems in Hα. EFRs interact with pre-existing magnetic fields in the corona and produce small flares (plasma heating) and collimated plasma jets. The GIF show multiple energetic jets in three different wavelengths. The light has beenco... more »

Most plusones: 155

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2015-04-23 22:04:39 (8 comments, 7 reshares, 155 +1s)Open 


Family Portrait.

Latest 50 posts

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2015-07-31 19:51:45 (5 comments, 1 reshares, 24 +1s)Open 


Dropping a neodymium magnet through a cooper tube fun with eddy currents

https://en.wikipedia.org/wiki/Eddy_current

tl;dr Magnet creates current in copper due to shifting magnetic field, current creates induced magnetic field and causes electromagnetic force on magnet.
#science   #magnetism   #eddycurrents  
.


Dropping a neodymium magnet through a cooper tube fun with eddy currents

https://en.wikipedia.org/wiki/Eddy_current

tl;dr Magnet creates current in copper due to shifting magnetic field, current creates induced magnetic field and causes electromagnetic force on magnet.
#science   #magnetism   #eddycurrents  
.___

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2015-07-31 19:33:17 (2 comments, 4 reshares, 63 +1s)Open 

___

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2015-07-31 16:56:08 (4 comments, 11 reshares, 43 +1s)Open 

#StephenColbert  tries to coax some love for Pluto out of #NeildeGrasseTyson

#StephenColbert  tries to coax some love for Pluto out of #NeildeGrasseTyson___

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2015-07-30 20:52:12 (0 comments, 3 reshares, 31 +1s)Open 


Serpentine Gallery Pavilion designed by José Selgas and Lucía Cano

http://artdaily.com/news/79520/Serpentine-Galleries-presents-pavilion-designed-by-Spanish-architects-Lucia-Cano-and-Jose-Selgas-

http://www.serpentinegalleries.org/exhibitions-events/serpentine-pavilion-2015

#art   #design   #architecture   #abstract   #organic   #sculpture  
.


Serpentine Gallery Pavilion designed by José Selgas and Lucía Cano

http://artdaily.com/news/79520/Serpentine-Galleries-presents-pavilion-designed-by-Spanish-architects-Lucia-Cano-and-Jose-Selgas-

http://www.serpentinegalleries.org/exhibitions-events/serpentine-pavilion-2015

#art   #design   #architecture   #abstract   #organic   #sculpture  
.___

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2015-07-30 20:35:27 (4 comments, 1 reshares, 6 +1s)Open 


Ballmer sells windows1.0 #BringBackBallmerFor10  


Ballmer sells windows1.0 #BringBackBallmerFor10  ___

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2015-07-30 19:58:30 (10 comments, 5 reshares, 39 +1s)Open 


And here we see a math problem in the wild #maths  


And here we see a math problem in the wild #maths  ___

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2015-07-27 09:51:28 (3 comments, 4 reshares, 24 +1s)Open 


Chameleons have two finger-like appendages on each foot, and each foot has five claws—two on one "toe" and three on the other. They are also the only animal that can move its eye independently allowing them to look in opposite directions simultaneously.

Chameleon Facts:
http://www.livescience.com/51061-chameleon.html

Photograph by Florence Bennett

.


Chameleons have two finger-like appendages on each foot, and each foot has five claws—two on one "toe" and three on the other. They are also the only animal that can move its eye independently allowing them to look in opposite directions simultaneously.

Chameleon Facts:
http://www.livescience.com/51061-chameleon.html

Photograph by Florence Bennett

.___

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2015-07-27 07:50:00 (2 comments, 2 reshares, 11 +1s)Open 


#criminalminds   #philosophy   #existentialism   #thejoke  


#criminalminds   #philosophy   #existentialism   #thejoke  ___

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2015-07-15 14:52:54 (0 comments, 1 reshares, 36 +1s)Open 


George: As I looked into the eye of the great planet ...

Jerry: Dwarf planet.

George: Whatever.

#nasa   #plutoflyby   #Seinfeld  


George: As I looked into the eye of the great planet ...

Jerry: Dwarf planet.

George: Whatever.

#nasa   #plutoflyby   #Seinfeld  ___

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2015-07-15 13:45:51 (0 comments, 2 reshares, 15 +1s)Open 


Stephen Colbert and Neil deGrasse Tyson discuss NASA's historic Pluto flyby mission #plutoflyby  


Stephen Colbert and Neil deGrasse Tyson discuss NASA's historic Pluto flyby mission #plutoflyby  ___

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2015-07-11 19:19:28 (14 comments, 18 reshares, 73 +1s)Open 


Audience question: “My question is, why are there wasps? What purpose do they serve?”

Sir David Attenborough: “Well, the purpose of a wasp, as far as the wasp is concerned, is solely to make other wasps, which they do very well. From an environmental standpoint, well, wasps are major predators of other insects. I’m sure that you know the importance that predators play in ecosystem health, as well as the health of prey populations. If you mean what purpose do they serve Humanity, well, none; but then I hope we’re now beyond only being interested in, and protecting, species that we can exploit for own own benefit. We are not the be-all and end-all of Evolution, we just think we are.”

#wasps   #davidattenborough   #perspective   #science  


Audience question: “My question is, why are there wasps? What purpose do they serve?”

Sir David Attenborough: “Well, the purpose of a wasp, as far as the wasp is concerned, is solely to make other wasps, which they do very well. From an environmental standpoint, well, wasps are major predators of other insects. I’m sure that you know the importance that predators play in ecosystem health, as well as the health of prey populations. If you mean what purpose do they serve Humanity, well, none; but then I hope we’re now beyond only being interested in, and protecting, species that we can exploit for own own benefit. We are not the be-all and end-all of Evolution, we just think we are.”

#wasps   #davidattenborough   #perspective   #science  ___

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2015-07-08 21:37:33 (8 comments, 40 reshares, 87 +1s)Open 


Periodic Table there is an element of this I do enjoy


Periodic Table there is an element of this I do enjoy___

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2015-07-07 02:58:42 (6 comments, 8 reshares, 67 +1s)Open 


#NeildeGrasseTyson  on #TheMartian  


#NeildeGrasseTyson  on #TheMartian  ___

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2015-06-17 19:40:29 (7 comments, 11 reshares, 101 +1s)Open 


Illustrated Groupings :'(


Illustrated Groupings :'(___

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2015-06-17 09:20:18 (1 comments, 6 reshares, 39 +1s)Open 


This rare fish is called Benten'uo or Pacific fanfish (Pteraclis aesticola) and recently appeared  in Toyama bay, Japan. Is very rare and most likely seen as stomach content of large predatory fishes, such as tunas. Young probably inhabits shallow, adults deep water.

The species is silvery, blue-greenish to black with bright blue dorsal and anal fins. The genus name comes from the Greek word “ptera” meaning wing and “clis” meaning shut. The name refers to the impressive dorsal and anal fins of this species and presumably how they retract into scaly sheaths along the upper and lower margins of the fish. It grows to 61 cm in length.

http://hagihaku.exblog.jp/8889288


This rare fish is called Benten'uo or Pacific fanfish (Pteraclis aesticola) and recently appeared  in Toyama bay, Japan. Is very rare and most likely seen as stomach content of large predatory fishes, such as tunas. Young probably inhabits shallow, adults deep water.

The species is silvery, blue-greenish to black with bright blue dorsal and anal fins. The genus name comes from the Greek word “ptera” meaning wing and “clis” meaning shut. The name refers to the impressive dorsal and anal fins of this species and presumably how they retract into scaly sheaths along the upper and lower margins of the fish. It grows to 61 cm in length.

http://hagihaku.exblog.jp/8889288___

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2015-06-16 00:58:16 (12 comments, 2 reshares, 37 +1s)Open 


As the only book reader in the room watching the GoT 5 finale


As the only book reader in the room watching the GoT 5 finale___

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2015-06-13 21:08:56 (5 comments, 21 reshares, 63 +1s)Open 


Fun fact of the day: There are 600 species of carnivorous plants

Most carnivorous plants had to adapt because their environments that no longer produced the nutrients they needed to flourish. Just like most species, they'll do what they can to survive. For many meat-eating plants, that means gulping down bugs, but for some it even extends to feeding on mice and frogs. They present many clever ways to lure in their prey to swallow them up.

Snap Traps: The most well-known plant to use the snap trap is the Venus flytrap. When opens, it offers what looks like a bright red landing pad for flying creatures. The plant has trigger hairs that, once touched, alert it to snap shut, often capturing its prey inside. As its victim struggles to escape, the plant is triggered yet again and continues closing until it becomes airtight. The bug eventually suffocates and the Venus... more »


Fun fact of the day: There are 600 species of carnivorous plants

Most carnivorous plants had to adapt because their environments that no longer produced the nutrients they needed to flourish. Just like most species, they'll do what they can to survive. For many meat-eating plants, that means gulping down bugs, but for some it even extends to feeding on mice and frogs. They present many clever ways to lure in their prey to swallow them up.

Snap Traps: The most well-known plant to use the snap trap is the Venus flytrap. When opens, it offers what looks like a bright red landing pad for flying creatures. The plant has trigger hairs that, once touched, alert it to snap shut, often capturing its prey inside. As its victim struggles to escape, the plant is triggered yet again and continues closing until it becomes airtight. The bug eventually suffocates and the Venus flytrap absorbs its fluid. That's a pretty sophisticated mechanism.

Glue Traps: Glue seems perhaps the most obvious way to trap a fly, similar to the type of flypaper traps humans use. The traps is set either by using a nectar as a reward or some glimmering droplets that attract them. Some plants have a sticky substance that holds the insect until it dies, while others have adhesive tentacles that wrap around their victims. When you see it in action, it looks quite aggressive. Again, the insect suffocates and the plant digests it.

Slip and Fall Traps: Pitcher plants evolved into a funnel shape as a way to trap food. It's easy to go in, but the shape makes it difficult to come back out. Like many other plants, they attract insects with sweetness and bright colors. What's different about these plants is that they have a slippery area around the rim caused by either a waxy substance or water droplets. Before the unsuspecting victims know it, they slip and fall down into the funnel. Once dead, the bugs get absorbed into the plant.

Suction Traps: The trap is arranged by pushing water out and therefore creating a negative pressure inside the sealed bladder. The entrance to the plant has trigger hairs, when prey gets close, the bladder instantly opens up and quickly sucks the prey in. The bladder then closes up to prevent prey from escaping so it can ingest it as a food source.

Video of carnivorous bladderworts (Utricularia species) catch prey animals with suction traps > https://www.youtube.com/watch?v=Zb_SLZFsMyQ

.
#science #biology #adaptivemechanisms #evolution #carnivorousplants  ___

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2015-06-13 03:04:11 (8 comments, 32 reshares, 47 +1s)Open 


Ceres' bright spots - a familiar comparison. Just sayin'...
#Ceres #astronomy #comparison  


Ceres' bright spots - a familiar comparison. Just sayin'...
#Ceres #astronomy #comparison  ___

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2015-06-11 00:53:22 (2 comments, 2 reshares, 20 +1s)Open 


Jorah gotta fly


Jorah gotta fly___

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2015-06-09 02:41:36 (5 comments, 0 reshares, 28 +1s)Open 


MRW any problem arises
Hope this one is as good as the book


MRW any problem arises
Hope this one is as good as the book___

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2015-06-05 14:36:36 (1 comments, 1 reshares, 20 +1s)Open 


Mathematical Magick

Complete title: Mathematical Magick, or, The wonders that may by performed by mechanichal geometry: in two books, concerning mechanical powers [and] motions. Being one of the most easie, pleasant, useful (and yet most neglected) part of Mathematicks. Not before treated of in this language.

A treatise by the English clergyman, natural philosopher, polymath and author John Wilkins (1614 – 1672). It was first published in 1648 in London, another edition was printed in 1680 further editions were published in 1691 and 1707.

Mathematics and magic may seem a strange combination, but many of the most powerful magical effects performed today have a mathematical basis.

Mathematical Magick: https://en.wikipedia.org/wiki/Mathematical_Magick

.


Mathematical Magick

Complete title: Mathematical Magick, or, The wonders that may by performed by mechanichal geometry: in two books, concerning mechanical powers [and] motions. Being one of the most easie, pleasant, useful (and yet most neglected) part of Mathematicks. Not before treated of in this language.

A treatise by the English clergyman, natural philosopher, polymath and author John Wilkins (1614 – 1672). It was first published in 1648 in London, another edition was printed in 1680 further editions were published in 1691 and 1707.

Mathematics and magic may seem a strange combination, but many of the most powerful magical effects performed today have a mathematical basis.

Mathematical Magick: https://en.wikipedia.org/wiki/Mathematical_Magick

.___

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2015-06-04 02:51:54 (3 comments, 1 reshares, 51 +1s)Open 


Jayne sure likes his bunk ; )


Jayne sure likes his bunk ; )___

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2015-06-03 23:48:34 (2 comments, 2 reshares, 17 +1s)Open 


Stannis Baratheon: Grammarian


Stannis Baratheon: Grammarian___

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2015-06-03 23:23:19 (2 comments, 5 reshares, 57 +1s)Open 


The most logical argument I’ve ever seen a hero use


The most logical argument I’ve ever seen a hero use___

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2015-05-26 21:26:51 (12 comments, 7 reshares, 75 +1s)Open 


Great vanity plate, how about a car wash Neil? ; )


Great vanity plate, how about a car wash Neil? ; )___

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2015-05-26 03:23:36 (14 comments, 2 reshares, 29 +1s)Open 


: )


: )___

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2015-05-24 21:58:49 (10 comments, 13 reshares, 56 +1s)Open 


Untold History: Rare photo of God playing dice with several Albert Einsteins. Einstein used Relativity to duplicate himself at the Celestial Dice Game, thus breaking the - one person - one bet - rule.
; )


Untold History: Rare photo of God playing dice with several Albert Einsteins. Einstein used Relativity to duplicate himself at the Celestial Dice Game, thus breaking the - one person - one bet - rule.
; )___

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2015-05-24 21:21:44 (5 comments, 7 reshares, 111 +1s)Open 


Jupiter’s Corona

Coronas are common around the Moon but they can also be seen on bright planets such as Venus or Jupiter. Aldebaran is the red star above Jupiter next to the Hyades cluster in Taurus.

Photographed by Luis Argerich

+Luis Argerich  http://www.luisargerich.com

.


Jupiter’s Corona

Coronas are common around the Moon but they can also be seen on bright planets such as Venus or Jupiter. Aldebaran is the red star above Jupiter next to the Hyades cluster in Taurus.

Photographed by Luis Argerich

+Luis Argerich  http://www.luisargerich.com

.___

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2015-05-19 02:36:47 (0 comments, 1 reshares, 27 +1s)Open 


Glowing Millipedes

We all have our own different coping mechanisms when it comes to stress. A nice walk outside. A cold beer. A punching bag. Blowing up at your friends. And glowing in the dark. What? Scientists believe that these millipedes evolved to glow in the dark to deal with stress (and to let predators now that they’re packing toxic cyanide).

The millipede Motyxia sequoiae, which lives at the upper elevations of the Sierra Nevada, glows bluish green—a warning to predators that the arthropod contains toxic cyanide. All 11 species and subspecies in the genus Motyxia glow, but those at lower elevations of the mountains glow less brightly. Scientists now think the bioluminescence first evolved as a way for millipedes at lower elevations to cope with the stress of living in a hot, dry environment and later evolved into a warning signal as the species moved up themou... more »


Glowing Millipedes

We all have our own different coping mechanisms when it comes to stress. A nice walk outside. A cold beer. A punching bag. Blowing up at your friends. And glowing in the dark. What? Scientists believe that these millipedes evolved to glow in the dark to deal with stress (and to let predators now that they’re packing toxic cyanide).

The millipede Motyxia sequoiae, which lives at the upper elevations of the Sierra Nevada, glows bluish green—a warning to predators that the arthropod contains toxic cyanide. All 11 species and subspecies in the genus Motyxia glow, but those at lower elevations of the mountains glow less brightly. Scientists now think the bioluminescence first evolved as a way for millipedes at lower elevations to cope with the stress of living in a hot, dry environment and later evolved into a warning signal as the species moved up the mountains.

National Geographic:
https://www.youtube.com/watch?v=N3k4IQHFlJA
.___

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2015-05-18 17:24:21 (5 comments, 1 reshares, 20 +1s)Open 


Caffeine lethal dosage Thanks WolframAlpha

wolframalpha: For 50% of people, 88 cups of coffee will deliver a lethal dose of caffeine. Disclaimer, we’re really not encouraging anyone to test this out. Stick to your grande double shot latte with skim and have a nice Monday.


Caffeine lethal dosage Thanks WolframAlpha

wolframalpha: For 50% of people, 88 cups of coffee will deliver a lethal dose of caffeine. Disclaimer, we’re really not encouraging anyone to test this out. Stick to your grande double shot latte with skim and have a nice Monday.___

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2015-05-18 06:02:47 (3 comments, 14 reshares, 72 +1s)Open 


When english majors get drunk : )


When english majors get drunk : )___

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2015-05-17 16:07:59 (2 comments, 0 reshares, 6 +1s)Open 

+Mark Bruce selecting his best 10 for the past week, always excellent items to read here.

SciTech #ScienceSunday Digest - 20/2015.
Permalink here: http://www.scitechdigest.net/2015/05/crispr-cancer-targets-sensory-cortex.html

CRISPR cancer targets, Sensory cortex organisation, Implantable drug factories, Prosthetics with sensation, Atomic switch networks, Antiaging cellular interventions, Making graphene composites, 3D printed engine, Regeneration and senescent cells, Structural colour. 

1. Identifying Anticancer Drug Targets with CRISPR
A new technique uses CRISPR technology to quickly and comprehensively identify specific vulnerabilities in cancer cells, across cell types http://www.cshl.edu/news-and-features/using-crispr-biologists-find-a-way-to-comprehensively-identify-anti-cancer-drug-targets.html. The proof-of-concept surveyed 200 possible possible targets in leukemia, successfully identified the 6 previously-known targets and verified an additional 19 new targets. This works by specifically mutating key regions of genes, nucleotide by nucleotide, that are involved in encoding functional binding pockets in proteins; if modification of a particular pocket causes the cancer cell to die then it becomes a candidate site to design a new drug against. This should lead to many more viable drug targets the development of therapeutics that were never considered; but I’d also like to see the tool used to identify other targets for other cellular modifications, e.g. cell senescence, stem cell proliferation and differentiation etc. 

2. New Organisational Principles of the Sensory Cortex
Custom-designed high-resolution 3D reconstruction and modelling techniques have provided incredible new insights into the interconnectedness of neurons within and across the fundamental processing units called neocortical columns http://www.maxplanckflorida.org/news-and-media/news/3d-reconstruction-of-neuronal-networks-provides-unprecedented-insight-into-organizational-principles-of-sensory-cortex/. Previously, the neuronal networks within cortical columns were thought to be the most important structural feature. This work shows that, instead, the majority of neuronal circuitry actually interconnects neurons across multiple cortical columns by following very specific principles. The group extend the concept of cortical columns to intracortical units, and proposes that these higher-order units integrate information across multiple stimuli to anticipate future, related, stimuli. 

3. Implantable Cellular Drug Factories
Bacteria genetically modified to (i) produce and secrete an enzyme that converts a harmless prodrug into a cytotoxic chemotherapy drug and (ii) control this production subject to temperature-dependent regulatory control, have been encapsulated in magnetic nanoporous capsules that prevent the cells from coming into contact with the immune system while still allowing the passage proteins and nutrients, and which are then implanted into animal tumours where the application of an alternating magnetic field causes the capsules to heat up and for the bacteria to then induce the localised production of cancer-killing therapeutic drugs http://cancer.dartmouth.edu/about_us/newsdetail/73456/. I wonder what we might do with systems like this that allow the localised or systemic controlled production of any protein or biomolecule of choice?

4. Prosthetic Limbs with a Sense of Touch
A new circular electrode designed to encase and stimulate nerves in the upper arm is being tested in non-human primates to determine what touch sensations can be induced and “felt” on the primate’s hand, how best to induce these sensations, how many sensors can be packed onto a prosthetic hand to provide as much sensation as possible, and how much bandwidth the brain is capable of taking in from the electrode array http://news.wustl.edu/news/Pages/device-may-allow-sensation-in-prosthetics.aspx. The mechanical sophistication and thought-control via brain-computer interfaces of prosthetic limbs have come a long way; the key missing component of sensory feedback has remained elusive however. 

5. Self-Organised Atomic Switch Networks
A new type of chip called an atomic switch network is fabricated by growing silver nanowires atop a patterned seed network of copper posts; the chaotic pattern of silver nanowires connect points where the nanowires touch and form memristor connections http://phys.org/news/2015-05-scientists-atomic-scale-hardware-natural.html. The research team believes the device demonstrates emergent behaviour and patterns of electrical activity that can only be attributable to the network as a whole, with the memristive connections and switches constantly reconfiguring and adapting to inputs. Whether such an architecture might ever perform useful computations is yet to be seen, although I’d love to see them scale the chip further and add extra layers of interconnections, moving from 2 to 3 dimensions and so becoming more brain-like. 

6. Sophisticated Cellular Interventions for Anti-Aging
A few studies this week showed how old cells might be taught young tricks again. First, leading on from parabiosis studies we have targeted knock-down of Transforming Growth Factor Beta successfully renewing stem cell function in both brain and muscle tissue of old mice and also, specifically showed that hippocampal stem cells became more youthful http://newscenter.berkeley.edu/2015/05/13/drug-perks-up-old-muscles-and-aging-brains/. Second, specific proteins isolated from stem cells were shown, when introduced to mice, to be sufficient for stimulating the growth of new bone http://gladstoneinstitutes.org/pressrelease/2015-05-11/scientists-regenerate-bone-tissue-using-only-proteins-secreted-by-stem-cells. Four, targeted disablement of telomeres in cancer cells http://www.eurekalert.org/pub_releases/2015-05/cndi-csa051115.php. Finally, we had a good review article on new ways to specifically stimulate the rejuvenation of muscle stem cells in older animals https://www.fightaging.org/archives/2015/05/considering-the-rejuvenation-of-muscle-satellite-cells.php. 

7. Large-Scale Fabrication of Graphene Composites
A new chemical vapor deposition technique allows the fabrication of multi-layered polymer graphene composite materials that, in the proof of concept, contains 2 inch square sheets of graphene http://www.ornl.gov/ornl/news/news-releases/2015/ornl-demonstrates-first-large-scale-graphene-fabrication?. This is apparently the first time graphene composites have been manufactured at this scale and enabling graphene’s amazing mechanical and electrical properties to be evidenced at the macroscale. In related news 3D printed graphene aerogels have interesting properties and applications https://www.llnl.gov/news/3d-printed-aerogels-improve-energy-storage. 

8. The Latest 3D Printed Jet Engine
GE demonstrated its completely 3D printed mini jet engine this week http://www.gereports.com/post/118394013625/these-engineers-3d-printed-a-mini-jet-engine-then. Their promotional video is worth a watch if you haven’t seen it already https://www.youtube.com/watch?v=W6A4-AKICQU. This functional little engine was successfully tested at 33,000 rpm after being printed via laser in a Direct Metal Laser Melting process built up from powdered metal and metal alloys. It’d be nice to see them test it in flight on a hobby aircraft, but there are no plans yet for a fully 3D printed commercial jet engine. 

9. Salamanders, Regeneration, and Senescent Cells
An interesting study exploring salamander limb regeneration reveals that this process involves a significant induction of cellular senescence followed by rapid and effective (immune) mechanisms for senescent cell clearance in both normal and regenerating tissues https://www.fightaging.org/archives/2015/05/an-intriguing-finding-on-senescent-cells-in-salamanders.php. Interfering with the immune system during regeneration results in defects in the process. The promise here is that further studies might reveal how the salamander immune system consistently targets and clears senescent cells and this mechanism might be replicated in humans as an anti-aging therapy to clear damaging senescent cells. 

10. Structural Nanomaterials for Structural Light
A new structural colour technology platform has been developed that involves the use of nanoparticles of polydopamine packed into solid layers on a thin film http://phys.org/news/2015-05-nanomaterials-bird-feathers.html. Inspired by the use of nanoparticles of melanin by some birds to produce colour, the thin films reflect pure colours of (so far) red, orange, yellow, and green light that are determined by the thickness and density of the film. Unlike colours or dyes based on pigments, materials exhibiting structural colour are not expected to fade with time. 

Archive: http://www.scitechdigest.net/2015/05/crispr-cancer-targets-sensory-cortex.html___+Mark Bruce selecting his best 10 for the past week, always excellent items to read here.

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2015-05-16 19:12:25 (5 comments, 2 reshares, 48 +1s)Open 


Brienne of Darth what?


Brienne of Darth what?___

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2015-05-16 06:25:22 (2 comments, 60 reshares, 53 +1s)Open 


Spaceplasma

The upper atmosphere of the Sun is dominated by plasma filled magnetic loops (coronal loops) whose temperature and pressure vary over a wide range. The appearance of coronal loops follows the emergence of magnetic flux, which is generated by dynamo processes inside the Sun. Emerging flux regions (EFRs) appear when magnetic flux bundles emerge from the solar interior through the photosphere and into the upper atmosphere (chromosphere and the corona). The characteristic feature of EFR is the Ω-shaped loops (created by the magnetic buoyancy/Parker instability), they appear as developing bipolar sunspots in magnetograms, and as arch filament systems in Hα. EFRs interact with pre-existing magnetic fields in the corona and produce small flares (plasma heating) and collimated plasma jets. The GIF show multiple energetic jets in three different wavelengths. The light has beenco... more »


Spaceplasma

The upper atmosphere of the Sun is dominated by plasma filled magnetic loops (coronal loops) whose temperature and pressure vary over a wide range. The appearance of coronal loops follows the emergence of magnetic flux, which is generated by dynamo processes inside the Sun. Emerging flux regions (EFRs) appear when magnetic flux bundles emerge from the solar interior through the photosphere and into the upper atmosphere (chromosphere and the corona). The characteristic feature of EFR is the Ω-shaped loops (created by the magnetic buoyancy/Parker instability), they appear as developing bipolar sunspots in magnetograms, and as arch filament systems in Hα. EFRs interact with pre-existing magnetic fields in the corona and produce small flares (plasma heating) and collimated plasma jets. The GIF show multiple energetic jets in three different wavelengths. The light has been colorized in red, green and blue, corresponding to three coronal temperature regimes ranging from ~0.8Mk to 2MK.

Coronal loop: http://en.wikipedia.org/wiki/Coronal_loop

Magnetic flux: http://en.wikipedia.org/wiki/Magnetic_flux

Convection zone: http://en.wikipedia.org/wiki/Convection_zone

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

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

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

Eugene Parker: http://en.wikipedia.org/wiki/Eugene_Parker

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

H-alpha: http://en.wikipedia.org/wiki/H-alpha

Image Credit: SDO/U. Aberystwyth___

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2015-05-15 19:11:45 (5 comments, 15 reshares, 47 +1s)Open 


Kinetic Sand an interactive table that responds to touch by creating plumes of sand that seem to whirl and dance around objects placed on top of it. The table is the latest creation from Adrien M / Claire B Company: http://www.am-cb.net/ This kinetic table accepts input from up to 32 simultaneous touches and responds by creating different kinds of animation using small dust-like particles.
Video > https://vimeo.com/124395296


Kinetic Sand an interactive table that responds to touch by creating plumes of sand that seem to whirl and dance around objects placed on top of it. The table is the latest creation from Adrien M / Claire B Company: http://www.am-cb.net/ This kinetic table accepts input from up to 32 simultaneous touches and responds by creating different kinds of animation using small dust-like particles.
Video > https://vimeo.com/124395296___

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2015-05-12 02:04:55 (26 comments, 20 reshares, 56 +1s)Open 


Rocket-triggered lightning event

Because thunder and lightning are unpredictable, the phenomena are best studied using triggered events. The technique involves launching a small rocket trailing a grounded copper wire into thunderclouds. The copper wire provides a conductive channel and creates a predictable path for lightning, allowing scientists to precisely focus their instruments and perform repeatable experiments close to the discharge channel. Using SwRI internal research funding, Dr. Maher Dayeh led a proof-of-concept experiment to image the acoustic signature of thunder. SwRI conducted experiments at the International Center for Lightning Research and Testing at the University of Florida, Gainesville, taking advantage of the state’s claim to the most lightning strikes per year in the U.S.

To map the acoustic signatures of thunder, Dr. Maher Dayeh and his team setu... more »


Rocket-triggered lightning event

Because thunder and lightning are unpredictable, the phenomena are best studied using triggered events. The technique involves launching a small rocket trailing a grounded copper wire into thunderclouds. The copper wire provides a conductive channel and creates a predictable path for lightning, allowing scientists to precisely focus their instruments and perform repeatable experiments close to the discharge channel. Using SwRI internal research funding, Dr. Maher Dayeh led a proof-of-concept experiment to image the acoustic signature of thunder. SwRI conducted experiments at the International Center for Lightning Research and Testing at the University of Florida, Gainesville, taking advantage of the state’s claim to the most lightning strikes per year in the U.S.

To map the acoustic signatures of thunder, Dr. Maher Dayeh and his team set up an array of of fifteen microphones, a meter apart, spiraling outwards from the site of the triggered lightning strikes. Using a few different processing techniques and a focus on higher sound frequencies, Dayeh eventually uncovered a distinct thunder signature.

SwRI reveals the first “images” of thunder:
http://www.swri.org/9what/releases/2015/thunder-image.htm#.VVFdS5PHjv1
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2015-05-11 18:24:48 (0 comments, 0 reshares, 6 +1s)Open 


Mash-up: The Carbonite Maneuver 
https://www.youtube.com/watch?v=IuYhjAXIAro


Mash-up: The Carbonite Maneuver 
https://www.youtube.com/watch?v=IuYhjAXIAro___

2015-04-29 20:37:22 (3 comments, 2 reshares, 6 +1s)Open 

Please join us on 5/5 for a +Science on Google+ HOA with Dr.+Miguel Nicolelis, Professor of Neurobiology, Biomedical Engineering, Psychology, and Neuroscience at +Duke University, and founder of Duke's Center for Neuroengineering. Dr. Nicolelis is a pioneer in neuronal population coding (simultaneously recording from hundreds to thousands of neurons), Brain Machine Interface (controlling robotic or avatar limbs with thoughts), neuroprosthetics (prosthetic limbs that directly communicate with sensory and motor cortices), and Brain to Brain Interface (tactile or visual information encoded by rat 1 is decoded by rat 2). Dr. Nicolelis has published over 200 peer-reviewed articles, with many of these publications appearing in high impact journals such as Nature, Science, and Proceedings of the National Academy of Sciences (see below for a short list of publications). More recently, Dr. Nicolelis’rese... more »

Please join us on 5/5 for a +Science on Google+ HOA with Dr.+Miguel Nicolelis, Professor of Neurobiology, Biomedical Engineering, Psychology, and Neuroscience at +Duke University, and founder of Duke's Center for Neuroengineering. Dr. Nicolelis is a pioneer in neuronal population coding (simultaneously recording from hundreds to thousands of neurons), Brain Machine Interface (controlling robotic or avatar limbs with thoughts), neuroprosthetics (prosthetic limbs that directly communicate with sensory and motor cortices), and Brain to Brain Interface (tactile or visual information encoded by rat 1 is decoded by rat 2). Dr. Nicolelis has published over 200 peer-reviewed articles, with many of these publications appearing in high impact journals such as Nature, Science, and Proceedings of the National Academy of Sciences (see below for a short list of publications). More recently, Dr. Nicolelis’ research made it possible for a quadriplegic child to use his mind to control a bionic exoskeleton and kickoff the opening game at the 2014 FIFA World Cup.

RSVP “yes” to add this event to your calendar. We will open up the Q & A app so feel free to post your questions on this event post or by using the app during the hangout.

Relevant Links:
Faculty page: http://goo.gl/qs8NfM 
Lab page: http://www.nicolelislab.net 
2012 Ted Talk: http://goo.gl/kxCxT8 
2014 Ted Talk: http://goo.gl/23OqmV 
Book: http://goo.gl/x7Kg5J 

Relevant Readings (see http://goo.gl/nQadag for a more exhaustive list):

Schwarz D, Lebedev MA, Tate A, Hanson T, Lehew G, Melloy J, Dimitrov D, Nicolelis MAL. Chronic, Wireless Recordings of Large Scale Brain Activity in Freely Moving Rhesus Monkeys. Nat. Methods doi:10.1038/nmeth.2936, 2014.

Thomson EE, Carra R, Nicolelis MAL. Perceiving Invisible Light through a Somatosensory Cortical Prosthesis. Nat. Commun.10.1038/ncomms2497, 2013.

Ifft P, Shokur S, Li Z, Lebedev MA, Nicolelis MAL. A Brain-Machine Interface Enables Bimanual Arm Movements in Monkeys. Sci. Transl. Med. 5: 210, DOI:10.1126/scitranslmed.3006159, 2013.

Shokur S, O’Doherty J.E., Winans J.A., Bleuler H., Lebedev M.A., Nicolelis M.A.L. Expanding the primate body schema in sensorimotor cortex by virtual touches of an avatar. Proc. Natl. Acad. Sci. 110: 15121-6, doi: 10.1073/pnas.1308459110, 2013.

O’Doherty JE, Lebedev MA, Ifft PJ, Zhuang KZ, Shokur S, Bleuler H, Nicolelis MAL. Active tactile exploration enabled by a brain-machine-brain interface. Nature 479: 228-231, 2011.

Fuentes R, Petersson P, Siesser WB, Caron MG, Nicolelis MAL. Spinal Cord Stimulation Restores Locomotion in Animal Models of Parkinson’s disease. Science 323: 1578-82, 2009.

Pereira A, Ribeiro S, Wiest M, Moore LC, Pantoja J, Lin S-C, Nicolelis MAL. Processing of tactile information by the  hippocampus. PNAS 104: 18286-18291 (Epub) November 2007.

Krupa DJ, Wiest, MC, Laubach M, Nicolelis MAL Layer specific somatosensory cortical activation during active tactile discrimination   Science 304: 1989-1992, 2004.

Nicolelis MAL, Dimitrov DF, Carmena J, Crist R, Lehew G, Kralik J, Wise S. Chronic, multi-site, multi-electrode recordings in macaque monkeys. PNAS 100: 11041-11046, 2003.

Nicolelis MAL. Actions from thoughts. Nature 409: 403-407, 2001.___

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2015-04-28 02:22:49 (0 comments, 0 reshares, 28 +1s)Open 


; )


; )___

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2015-04-28 02:08:51 (1 comments, 1 reshares, 17 +1s)Open 


Luther, President Obama's Anger Translator ; ) terrific bit


Luther, President Obama's Anger Translator ; ) terrific bit___

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2015-04-28 01:47:39 (1 comments, 5 reshares, 20 +1s)Open 


Scientists watch living taste cells in action

Scientists have for the first time captured live images of the process of taste sensation on the tongue, via intravital microscopy. The international team imaged single cells on the tongue of a mouse with a specially designed microscope system.

“We’ve watched live taste cells capture and process molecules with different tastes,” said biomedical engineer Dr Steve Lee, from The Australian National University (ANU).

There are more than 2,000 taste buds on the human tongue, which can distinguish at least five tastes: salty, sweet, sour, bitter and umami.

However the relationship between the many taste cells within a taste bud, and our perception of taste has been a long standing mystery, said Professor Seok-Hyun Yun from Harvard Medical School.

“With this new imaging tool we have shown thateach ta... more »


Scientists watch living taste cells in action

Scientists have for the first time captured live images of the process of taste sensation on the tongue, via intravital microscopy. The international team imaged single cells on the tongue of a mouse with a specially designed microscope system.

“We’ve watched live taste cells capture and process molecules with different tastes,” said biomedical engineer Dr Steve Lee, from The Australian National University (ANU).

There are more than 2,000 taste buds on the human tongue, which can distinguish at least five tastes: salty, sweet, sour, bitter and umami.

However the relationship between the many taste cells within a taste bud, and our perception of taste has been a long standing mystery, said Professor Seok-Hyun Yun from Harvard Medical School.

“With this new imaging tool we have shown that each taste bud contains taste cells for different tastes,” said Professor Yun.

The team also discovered that taste cells responded not only to molecules contacting the surface of the tongue, but also to molecules in the blood circulation.

Myunghwan Choi, Woei Ming Lee, Seok Hyun Yun. Intravital Microscopic Interrogation of Peripheral Taste Sensation. Scientific Reports, 2015; 5: 8661 DOI:
10.1038/srep08661

Australian National University:
http://www.anu.edu.au/news/all-news/scientists-watch-living-taste-cells-in-action

The research has been published in the latest edition of Nature Publishing Group's Scientific Reports:
http://www.nature.com/srep/2015/150302/srep08661/full/srep08661.html?WT.ec_id=SREP-639-20150303


Image: This is a tastebud showing receptor cells (green), blood cells (red), and collagen surrounding the bud (blue). Credit: S. Lee, S. Yun, M. Choi

#tastebuds #science #biology #taste  ___

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2015-04-23 22:18:14 (0 comments, 3 reshares, 41 +1s)Open 


These Tiny Paintings For Ants Are Wonderful

Artist Lorraine Loots, 29, is based in Cape Town, South Africa, and she makes paintings for ants.

Her series 365 Paintings for Ants started as a side project after Loots took a business course for artists and decided she didn’t want to pursue that career anymore. But she still wanted to paint, so she allotted herself an hour a day to do so. Since the only thing she could finish in that time was a miniature, well the idea was spawned.

http://lorraineloots.com/

.


These Tiny Paintings For Ants Are Wonderful

Artist Lorraine Loots, 29, is based in Cape Town, South Africa, and she makes paintings for ants.

Her series 365 Paintings for Ants started as a side project after Loots took a business course for artists and decided she didn’t want to pursue that career anymore. But she still wanted to paint, so she allotted herself an hour a day to do so. Since the only thing she could finish in that time was a miniature, well the idea was spawned.

http://lorraineloots.com/

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2015-04-23 22:04:39 (8 comments, 7 reshares, 155 +1s)Open 


Family Portrait.


Family Portrait.___

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2015-04-22 18:19:13 (2 comments, 5 reshares, 27 +1s)Open 

___

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2015-04-16 21:49:11 (2 comments, 4 reshares, 67 +1s)Open 


Ah ...The Feels : )


Ah ...The Feels : )___

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2015-04-13 05:38:21 (0 comments, 1 reshares, 9 +1s)Open 


Still ... nothing ; )                                         Game of Thrones Season 5


Still ... nothing ; )                                         Game of Thrones Season 5___

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2015-04-08 20:12:56 (5 comments, 8 reshares, 33 +1s)Open 


The mathematician Archimedes once said, “Give me a place to stand, and I shall move the Earth." As it turns out, he was describing the fundamental principle behind the lever

The lever is balanced when the product of the effort force and the length of the effort arm equals the product of the resistance force and the length of the resistance arm. This relies on one of the basic laws of physics, which states that work measured in joules is equal to force applied over a distance.

A lever can’t reduce the amount of work needed to lift something, but it does give you a trade-off.Increase the distance and you can apply less force. Rather than trying to lift an object directly, the lever makes the job easier by dispersing its weight across the entire length of the effort and resistance arms. So if your friend weighs twice as much as you, you’d need to sit twice as farfrom ... more »


The mathematician Archimedes once said, “Give me a place to stand, and I shall move the Earth." As it turns out, he was describing the fundamental principle behind the lever

The lever is balanced when the product of the effort force and the length of the effort arm equals the product of the resistance force and the length of the resistance arm. This relies on one of the basic laws of physics, which states that work measured in joules is equal to force applied over a distance.

A lever can’t reduce the amount of work needed to lift something, but it does give you a trade-off.Increase the distance and you can apply less force. Rather than trying to lift an object directly, the lever makes the job easier by dispersing its weight across the entire length of the effort and resistance arms. So if your friend weighs twice as much as you, you’d need to sit twice as far from the center as him in order to lift him. By the same token, his little sister, whose weight is only a quarter of yours, could lift you by sitting four times as far as you.

With a big enough lever, you can lift some pretty heavy things. A person weighing 150 pounds, or 68 kilograms, could use a lever just 3.7 meters long to balance a smart car, or a ten meter lever to lift a 2.5 ton stone block, like the ones used to build the Pyramids. If you wanted to lift the Eiffel Tower, your lever would have to be a bit longer, about 40.6 kilometers.

The Earth weighs 6 x 10^24 kilograms, and the Moon that’s about 384,400 kilometers away would make a great fulcrum. So all you’d need to lift the Earth is a lever with a length of about a quadrillion light years, 1.5 billion times the distance to the Andromeda Galaxy.

And of course a place to stand so you can use it.

> https://www.youtube.com/watch?v=YlYEi0PgG1g

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2015-04-06 22:08:13 (10 comments, 14 reshares, 67 +1s)Open 


As our ability to get better resolution of Jupiter increases…


As our ability to get better resolution of Jupiter increases…___

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2015-04-06 21:22:27 (1 comments, 26 reshares, 42 +1s)Open 


We’ve solved the mystery of the food coloring drops that chase each other

A puzzling observation, pursued through hundreds of experiments, has led Stanford researchers to a simple yet profound discovery: Under certain circumstances, droplets of fluid will move like performers in a dance choreographed by molecular physics.

What makes drops of food coloring able to dance, chase, sort themselves, or align with one another? This unexpected behavior is a consequence of food coloring consisting of two mixed liquids: water and propylene glycol. Both have their own surface tension properties and evaporation rates, which ultimately drives the behavior you see in the animated gifs. Both long-range and short-range interactions are observed. The former are due to vapor from each droplet adsorbing onto the glass around the droplet, thereby changing the local surface tension andc... more »


We’ve solved the mystery of the food coloring drops that chase each other

A puzzling observation, pursued through hundreds of experiments, has led Stanford researchers to a simple yet profound discovery: Under certain circumstances, droplets of fluid will move like performers in a dance choreographed by molecular physics.

What makes drops of food coloring able to dance, chase, sort themselves, or align with one another? This unexpected behavior is a consequence of food coloring consisting of two mixed liquids: water and propylene glycol. Both have their own surface tension properties and evaporation rates, which ultimately drives the behavior you see in the animated gifs. Both long-range and short-range interactions are observed. The former are due to vapor from each droplet adsorbing onto the glass around the droplet, thereby changing the local surface tension and causing nearby drops to feel an attractive force. The short-range effects are also surface-tension-driven.

Droplets with lower surface tension will naturally try to flow toward areas of higher surface tension, which causes them to “chase” dissimilar adjacent drops. You can learn more about the research in the videos linked below (especially the last two), or you can read about the work in this article.

Stanford: http://news.stanford.edu/news/2015/march/dancing-droplets-prakash-031115.html

video 1: https://www.youtube.com/watch?v=LTllH6RnHnQ

video 2: https://www.youtube.com/watch?v=h7o55tyHzxM

video 3: https://www.youtube.com/watch?v=K8Wx2PHIYGI

video 4: https://www.youtube.com/watch?v=ZMsaH6SY4CY

GIFs via freshphotons
  
#scienceeveryday #physics #fluiddynamics #droplets
#evaporation #surfacetension #microfluidics  
.___

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2015-03-30 23:01:31 (0 comments, 7 reshares, 33 +1s)Open 


Watch set into a single Colombian emerald crystal, circa 1600; the watch is part of the Cheapside Hoard, a cache of jewels and jewelry buried since the Great Fire of London in 1666 and rediscovered in 1912. This looks like the kind of thing you write a whole novel about, starring relatable youths who are irreversibly altered by their strange experiences.

Other examples (and more links) from the Cheapside Hoard:

http://ufansius.tumblr.com/post/90070258830/sapphire-and-diamond-cross-pendant-front-and-back

http://ufansius.tumblr.com/post/86750628593/cameos-and-carved-precious-and-semiprecious-stones

http://ufansius.tumblr.com/post/84556403521/bejeweled-pomander-england-circa-1600-buried

http://ufansius.tumblr.com/post/114548271729/gold-emerald-diamond-and-enamel-hat-ornament-in

The Museum of London’s Extraordinary Cheapside Hoard:more »


Watch set into a single Colombian emerald crystal, circa 1600; the watch is part of the Cheapside Hoard, a cache of jewels and jewelry buried since the Great Fire of London in 1666 and rediscovered in 1912. This looks like the kind of thing you write a whole novel about, starring relatable youths who are irreversibly altered by their strange experiences.

Other examples (and more links) from the Cheapside Hoard:

http://ufansius.tumblr.com/post/90070258830/sapphire-and-diamond-cross-pendant-front-and-back

http://ufansius.tumblr.com/post/86750628593/cameos-and-carved-precious-and-semiprecious-stones

http://ufansius.tumblr.com/post/84556403521/bejeweled-pomander-england-circa-1600-buried

http://ufansius.tumblr.com/post/114548271729/gold-emerald-diamond-and-enamel-hat-ornament-in

The Museum of London’s Extraordinary Cheapside Hoard:
http://www.gia.edu/gems-gemology/FA13-cheapside-hoard-weldon

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