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Shared Circles including Peter Terren

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

The Google+ Collections of Peter Terren

Activity

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

5
comments per post
6
reshares per post
37
+1's per post

113
characters per posting

Top posts in the last 50 posts

Most comments: 16

posted image

2015-04-19 02:18:03 (16 comments, 19 reshares, 122 +1s)Open 

News flash: Electricity and water do mix.
Sparks onto my head in a pool. I am protected by a tin foil helmet.
Photo Bruce Jorgensen.
http://tesladownunder.com/tesla_coil_sparks.htm#Pool

Most reshares: 19

posted image

2015-04-19 02:18:03 (16 comments, 19 reshares, 122 +1s)Open 

News flash: Electricity and water do mix.
Sparks onto my head in a pool. I am protected by a tin foil helmet.
Photo Bruce Jorgensen.
http://tesladownunder.com/tesla_coil_sparks.htm#Pool

Most plusones: 122

posted image

2015-04-19 02:18:03 (16 comments, 19 reshares, 122 +1s)Open 

News flash: Electricity and water do mix.
Sparks onto my head in a pool. I am protected by a tin foil helmet.
Photo Bruce Jorgensen.
http://tesladownunder.com/tesla_coil_sparks.htm#Pool

Latest 50 posts

posted image

2015-08-29 04:38:02 (5 comments, 6 reshares, 37 +1s)Open 

Twin musical Tesla coils played by Kel Gardner at the Gravity Discovery Center for the Gingin Science Festival

Twin musical Tesla coils played by Kel Gardner at the Gravity Discovery Center for the Gingin Science Festival___

posted image

2015-07-26 11:32:44 (9 comments, 0 reshares, 30 +1s)Open 

Shed 1  (fits 2 cars)          FULL
Shed 2  (fits 4 cars)          FULL
Shipping container            FULL
Patio below                        in progress..

Shed 1  (fits 2 cars)          FULL
Shed 2  (fits 4 cars)          FULL
Shipping container            FULL
Patio below                        in progress..___

posted image

2015-06-29 20:43:13 (13 comments, 0 reshares, 28 +1s)Open 

'nuf said...

'nuf said...___

posted image

2015-06-21 08:08:39 (3 comments, 0 reshares, 10 +1s)Open 

A little weather event that woke me up this morning with the corresponding weather radar. The hail was very loud on a tin roof. The lowest red spot of very high rainfall/high radar reflectivity on the map is exactly over us.
Some years back many thousands of cars in our capital city, Perth, were dented by once-in-a- century hail.

A little weather event that woke me up this morning with the corresponding weather radar. The hail was very loud on a tin roof. The lowest red spot of very high rainfall/high radar reflectivity on the map is exactly over us.
Some years back many thousands of cars in our capital city, Perth, were dented by once-in-a- century hail.___

posted image

2015-06-07 06:47:34 (2 comments, 5 reshares, 46 +1s)Open 

Rear view of the twin musical Tesla setup with bass reinforcement speakers. A rats nest of computing, audio, control and power cables and fiber optics. 

Rear view of the twin musical Tesla setup with bass reinforcement speakers. A rats nest of computing, audio, control and power cables and fiber optics. ___

posted image

2015-06-07 06:16:40 (0 comments, 1 reshares, 20 +1s)Open 

Rear view of the twin musical Tesla setup with bass reinforcement speakers. A rats nest of computing, audio, control and power cables and fiber optics. 

Rear view of the twin musical Tesla setup with bass reinforcement speakers. A rats nest of computing, audio, control and power cables and fiber optics. ___

posted image

2015-06-02 12:10:41 (3 comments, 2 reshares, 16 +1s)Open 

Twin caged Tesla coils at sunset. Single person quick setup, compact, safe and performance ready.

Twin caged Tesla coils at sunset. Single person quick setup, compact, safe and performance ready.___

posted image

2015-06-02 12:09:57 (2 comments, 7 reshares, 34 +1s)Open 

Twin caged Tesla coils at sunset. Single person quick setup, compact, safe and performance ready.

Twin caged Tesla coils at sunset. Single person quick setup, compact, safe and performance ready.___

posted image

2015-06-01 04:58:00 (3 comments, 2 reshares, 28 +1s)Open 

The twin musical Tesla coils are in cages to reduce interference to electronics and increase safety.
One might expect sparks would be from the nearest point to the cage (ie about 8 inches = diameter of the steel sphere). However, sparks can't breakout from a smooth surface of this size unless there is a breakout point. By positioning one at the top of the sphere,  they preferentially go up the 20 inches or so to the ceiling. 
Now 20 inches is not huge but it is in proportion to the exclusion zone for the operator and equipment without the cage.
This is still loud and needs earmuffs if you are close. In actual use you would have powered speakers behind them to provide the backing music track that the sparks are played to.
I can sit between them so it becomes a compact installation that I can setup without help.
And the cages? Four dog cages that fold flat to the same dimensiona... more »

The twin musical Tesla coils are in cages to reduce interference to electronics and increase safety.
One might expect sparks would be from the nearest point to the cage (ie about 8 inches = diameter of the steel sphere). However, sparks can't breakout from a smooth surface of this size unless there is a breakout point. By positioning one at the top of the sphere,  they preferentially go up the 20 inches or so to the ceiling. 
Now 20 inches is not huge but it is in proportion to the exclusion zone for the operator and equipment without the cage.
This is still loud and needs earmuffs if you are close. In actual use you would have powered speakers behind them to provide the backing music track that the sparks are played to.
I can sit between them so it becomes a compact installation that I can setup without help.
And the cages? Four dog cages that fold flat to the same dimension as one of the walls
Here the Tesla coils play the Imperial March:
https://plus.google.com/u/0/+PeterTerren/posts/FdBdfg44jG8
Here they play Daft Punk with full musical backing:
https://youtu.be/rlCuHR3Rz38___

posted image

2015-05-24 07:15:06 (2 comments, 4 reshares, 84 +1s)Open 

A handheld shot with my Nikon D300 with a live Meadow Argus butterfly. Detail down to individual scales.

A handheld shot with my Nikon D300 with a live Meadow Argus butterfly. Detail down to individual scales.___

posted image

2015-05-24 07:05:54 (9 comments, 0 reshares, 54 +1s)Open 

Tesla coil and car. No, not overacting at all...

Tesla coil and car. No, not overacting at all...___

posted image

2015-05-17 11:11:05 (6 comments, 0 reshares, 5 +1s)Open 

Tearing a phone book in half sounds pretty difficult but can be done with the right technique.

Tearing a phone book in half sounds pretty difficult but can be done with the right technique.___

posted image

2015-05-17 01:57:34 (3 comments, 0 reshares, 14 +1s)Open 

No longer targeting seatbelts....

No longer targeting seatbelts....___

posted image

2015-05-16 09:52:35 (11 comments, 2 reshares, 19 +1s)Open 

Testing out Tesla coil sparks on to my car for an upcoming event.

Testing out Tesla coil sparks on to my car for an upcoming event.___

2015-05-04 18:39:42 (0 comments, 0 reshares, 4 +1s)Open 

Google's new Collections. Easy to use. Here are a set of my nature photos.

Google's new Collections. Easy to use. Here are a set of my nature photos.___

posted image

2015-04-25 06:43:00 (0 comments, 0 reshares, 6 +1s)Open 

More Pixelstick moving background weirdness. This is two people walking L to R in same direction as the Pixelstick.You can see the ponytail. Th "tail" to the right is a hand held backwards, moving just slower than the pixelstick, so only slowly coming into view (shadow).

More Pixelstick moving background weirdness. This is two people walking L to R in same direction as the Pixelstick.You can see the ponytail. Th "tail" to the right is a hand held backwards, moving just slower than the pixelstick, so only slowly coming into view (shadow).___

posted image

2015-04-25 06:33:52 (0 comments, 0 reshares, 6 +1s)Open 

 Bizarre.  Walk one way with the Pixelstick moving background and you are thin and the other ..ehmmm.. wide.
There are a lot of other effects such as appearing twice like batting and bowling that adds a whole new dimension of time/position/direction. Lots of other examples.
https://plus.google.com/u/0/+PeterTerren/posts/Z6VU8Ej48n6

 Bizarre.  Walk one way with the Pixelstick moving background and you are thin and the other ..ehmmm.. wide.
There are a lot of other effects such as appearing twice like batting and bowling that adds a whole new dimension of time/position/direction. Lots of other examples.
https://plus.google.com/u/0/+PeterTerren/posts/Z6VU8Ej48n6___

posted image

2015-04-25 05:57:02 (8 comments, 0 reshares, 11 +1s)Open 

Testing G+ pinning.  Seems to only work on public posts and can be edited individually. Lots of pinned posts would be fine but would clog up page 1 of your G+.

Took this photo tonight. Please explain. 
If you don't know then be bizarre...

Testing G+ pinning.  Seems to only work on public posts and can be edited individually. Lots of pinned posts would be fine but would clog up page 1 of your G+.

Took this photo tonight. Please explain. 
If you don't know then be bizarre...___

posted image

2015-04-19 04:29:05 (1 comments, 5 reshares, 46 +1s)Open 

Th answer to my previous photo with laser beams apparently emanating from my fingers. The beams of course are striking my fingertips from an external source and become visible when the fog is added from the blue machine on the left.
The lasers are blue multispectral Argon about 14mW, red HeNe 10mW and green diode 9mA visible. It was a bit tricky to run all this keeping my left hand still while operating the fog machine and camera.
Prev post is : https://plus.google.com/u/0/108941983487083451766/posts/ZditxQq2yrJ

Th answer to my previous photo with laser beams apparently emanating from my fingers. The beams of course are striking my fingertips from an external source and become visible when the fog is added from the blue machine on the left.
The lasers are blue multispectral Argon about 14mW, red HeNe 10mW and green diode 9mA visible. It was a bit tricky to run all this keeping my left hand still while operating the fog machine and camera.
Prev post is : https://plus.google.com/u/0/108941983487083451766/posts/ZditxQq2yrJ___

posted image

2015-04-19 04:14:30 (5 comments, 0 reshares, 9 +1s)Open 

This is the fortyfifth in a series of unusual photos of mine that are not immediately obvious.
As usual, have a guess and make it fun. I'll publish the answer in a day with a copy to responders. It's quite bizarre.

This is the fortyfifth in a series of unusual photos of mine that are not immediately obvious.
As usual, have a guess and make it fun. I'll publish the answer in a day with a copy to responders. It's quite bizarre.___

posted image

2015-04-19 04:14:27 (0 comments, 0 reshares, 5 +1s)Open 

There are three Americium sources from household smoke detectors made visible by fluorescence from Alpha radiation. All about 1.0 microCurie and about 1/2 inch (12mm) in diameter. The top one has no phosphor, the left lower one has Strontium Aluminate:Europium 2% (see below) glowing red and the right lower one has activated Zinc Sulphide glowing green. The Zinc Sulphide has a little glow not restricted to the emitter, due to phosphorescence from light exposure some hours before. 
The photographic exposure is about 7 minutes so this is VERY faint stuff.
This is similar to a spinthariscope - more about this later.
Original post:  https://plus.google.com/u/0/108941983487083451766/posts/YcLBPgW2jMD
+Ben Moody +Hjalti Leifsson +Steve Caunce +Simon Bridge  +Mukund Raghavan 

There are three Americium sources from household smoke detectors made visible by fluorescence from Alpha radiation. All about 1.0 microCurie and about 1/2 inch (12mm) in diameter. The top one has no phosphor, the left lower one has Strontium Aluminate:Europium 2% (see below) glowing red and the right lower one has activated Zinc Sulphide glowing green. The Zinc Sulphide has a little glow not restricted to the emitter, due to phosphorescence from light exposure some hours before. 
The photographic exposure is about 7 minutes so this is VERY faint stuff.
This is similar to a spinthariscope - more about this later.
Original post:  https://plus.google.com/u/0/108941983487083451766/posts/YcLBPgW2jMD
+Ben Moody +Hjalti Leifsson +Steve Caunce +Simon Bridge  +Mukund Raghavan ___

posted image

2015-04-19 04:13:04 (0 comments, 0 reshares, 17 +1s)Open 

This is a detail from my best known photo which has been filmed by local and international TV. Tesla coil sparks strike the tarmac and dissipate.

This is a detail from my best known photo which has been filmed by local and international TV. Tesla coil sparks strike the tarmac and dissipate.___

posted image

2015-04-19 04:11:49 (1 comments, 1 reshares, 6 +1s)Open 

I can finally switch on my laser fibreoptic implants that connect my fingertips to the 3 laser units in their silicone casing. Charging is by induction from a charging strap worn at night. Geek Cred +++.
Cool as that might be, its not actually true. But what is really going on with these two photos taken tonight?
Be creative.
G+ motto: All original, no photoshopping.

I can finally switch on my laser fibreoptic implants that connect my fingertips to the 3 laser units in their silicone casing. Charging is by induction from a charging strap worn at night. Geek Cred +++.
Cool as that might be, its not actually true. But what is really going on with these two photos taken tonight?
Be creative.
G+ motto: All original, no photoshopping.___

posted image

2015-04-19 04:11:29 (1 comments, 0 reshares, 15 +1s)Open 

This is a high voltage spark onto deionised water. It is perhaps 1/2 inch high and of sufficient power to redden the heavy copper electrode. The interesting part is the point of contact with the water which is a strange and constantly changing purple pattern.
The reflection below shows the bright point of current flow onto the electrode and is brighter than the arc reflection.  In Xenon arc lamps this pinpoint sized spot on the cathode is the bright part not the discharge itself.

This is a high voltage spark onto deionised water. It is perhaps 1/2 inch high and of sufficient power to redden the heavy copper electrode. The interesting part is the point of contact with the water which is a strange and constantly changing purple pattern.
The reflection below shows the bright point of current flow onto the electrode and is brighter than the arc reflection.  In Xenon arc lamps this pinpoint sized spot on the cathode is the bright part not the discharge itself.___

posted image

2015-04-19 04:10:43 (2 comments, 0 reshares, 8 +1s)Open 

Greetings, Earthman

Greetings, Earthman___

posted image

2015-04-19 04:05:14 (0 comments, 0 reshares, 2 +1s)Open 

This is the basic path of the red laser, but every exiting beam gives a myriad of internal reflections, which exit in turn.

This is the basic path of the red laser, but every exiting beam gives a myriad of internal reflections, which exit in turn.___

posted image

2015-04-19 04:05:10 (0 comments, 0 reshares, 15 +1s)Open 

Can you determine the entry point of the red and green lasers? Right uppermost prism is number one and count clockwise.
The images in the prisms look like galaxy clusters.

Can you determine the entry point of the red and green lasers? Right uppermost prism is number one and count clockwise.
The images in the prisms look like galaxy clusters.___

posted image

2015-04-19 04:04:39 (1 comments, 0 reshares, 10 +1s)Open 

This is the thirtyninth in a series of unusual photos that are not immediately obvious.
I am in my new shed and can really get into stuff now.

So, what is going on here?
As usual, have a guess and make it fun. Bizarre is best.

G+ motto: All original, no photoshopping.

This is the thirtyninth in a series of unusual photos that are not immediately obvious.
I am in my new shed and can really get into stuff now.

So, what is going on here?
As usual, have a guess and make it fun. Bizarre is best.

G+ motto: All original, no photoshopping.___

posted image

2015-04-19 03:53:42 (7 comments, 0 reshares, 5 +1s)Open 

This is the thirtyfourth in a series of unusual photos that are not immediately obvious.
As usual, have a guess and make it fun.

This is the thirtyfourth in a series of unusual photos that are not immediately obvious.
As usual, have a guess and make it fun.___

posted image

2015-04-19 02:18:03 (16 comments, 19 reshares, 122 +1s)Open 

News flash: Electricity and water do mix.
Sparks onto my head in a pool. I am protected by a tin foil helmet.
Photo Bruce Jorgensen.
http://tesladownunder.com/tesla_coil_sparks.htm#Pool

News flash: Electricity and water do mix.
Sparks onto my head in a pool. I am protected by a tin foil helmet.
Photo Bruce Jorgensen.
http://tesladownunder.com/tesla_coil_sparks.htm#Pool___

posted image

2015-04-18 11:55:17 (7 comments, 3 reshares, 32 +1s)Open 

Laser goggles protecting you from what colour?  Quickly.
http://tesladownunder.com/lasersDiode.htm

Laser goggles protecting you from what colour?  Quickly.
http://tesladownunder.com/lasersDiode.htm___

posted image

2015-04-18 11:16:26 (3 comments, 10 reshares, 53 +1s)Open 

I made this display of magnetic levitation - or rather magnetic suspension which has been installed in the Gravity Discovery Centre in Western Australia, I've given the magnet a bit of a spin.  Did I mention the video is only 2 seconds long? The magnet will continue to spin for over 15 mins if I recall. No bearings = no friction.

I made this display of magnetic levitation - or rather magnetic suspension which has been installed in the Gravity Discovery Centre in Western Australia, I've given the magnet a bit of a spin.  Did I mention the video is only 2 seconds long? The magnet will continue to spin for over 15 mins if I recall. No bearings = no friction.___

posted image

2015-04-18 10:59:41 (2 comments, 7 reshares, 59 +1s)Open 

Twin Tesla coils. These are solid state and can be modulated so the sparks "play" music.
See the YouTube for a video playing Daft Punk's Aerodynamic.
https://www.youtube.com/watch?v=rlCuHR3Rz38

Twin Tesla coils. These are solid state and can be modulated so the sparks "play" music.
See the YouTube for a video playing Daft Punk's Aerodynamic.
https://www.youtube.com/watch?v=rlCuHR3Rz38___

posted image

2015-04-05 18:21:34 (15 comments, 2 reshares, 11 +1s)Open 

Mystery Photo #1. Explain this photo in full. It is complex on several levels. I think you will be doing well to explain one fact, a master if you can explain two, and you must have been lurking in the bushes for three.
Note: Like all my photos, it is a single exposure with no photoshopping.
The subject is my son Chris playing cricket with himself. I will give periodic clues if ideas are running out.

Mystery Photo #1. Explain this photo in full. It is complex on several levels. I think you will be doing well to explain one fact, a master if you can explain two, and you must have been lurking in the bushes for three.
Note: Like all my photos, it is a single exposure with no photoshopping.
The subject is my son Chris playing cricket with himself. I will give periodic clues if ideas are running out.___

posted image

2015-03-30 12:17:04 (1 comments, 2 reshares, 9 +1s)Open 

Maybe your Serbian is better than mine....
Sanja Vuksanovic came to my Open day last month.

Maybe your Serbian is better than mine....
Sanja Vuksanovic came to my Open day last month.___

posted image

2015-03-15 06:28:01 (11 comments, 1 reshares, 31 +1s)Open 

I saw a spider last night 50 m away.
If you walk down your drive in rural Australia using a headtorch you start to see things in a different light.  Tiny specks of light are reflected back to your eye.  So lets look closer in the back yard with a powerful LED torch.
The little speck of light is reflected back from the eye of this nocturnal wolf spider. These are not compound eyes like insects but are better performing cup shaped eyes or ocelli some of which have a tapetum lucidum which gives the eyeshine seen with spotlighting.
The first photo shows the surroundings and the second is an enlargement with a tiny spot of light in the beam that moves from time to time, unlike dew drops which are barely seen at a distance.
The last shows the wolf spider.
Another post will follow on - you will need to refresh this post later.

I saw a spider last night 50 m away.
If you walk down your drive in rural Australia using a headtorch you start to see things in a different light.  Tiny specks of light are reflected back to your eye.  So lets look closer in the back yard with a powerful LED torch.
The little speck of light is reflected back from the eye of this nocturnal wolf spider. These are not compound eyes like insects but are better performing cup shaped eyes or ocelli some of which have a tapetum lucidum which gives the eyeshine seen with spotlighting.
The first photo shows the surroundings and the second is an enlargement with a tiny spot of light in the beam that moves from time to time, unlike dew drops which are barely seen at a distance.
The last shows the wolf spider.
Another post will follow on - you will need to refresh this post later.___

posted image

2015-03-11 00:46:57 (0 comments, 0 reshares, 21 +1s)Open 

I do different stuff. And here a little cosplay. About 10 second exposure. Absolutely no photoshop.  Tesladownunder.com 

I do different stuff. And here a little cosplay. About 10 second exposure. Absolutely no photoshop.  Tesladownunder.com ___

2015-03-07 14:17:34 (5 comments, 0 reshares, 8 +1s)Open 

I have cancelled the March 14 photographers night in Bunbury. This was advertised to demonstrate an eclectic mix of dramatic high voltage Tesla coils and explosive effects and a variety of sublime light painting effects of photographs with a pixel stick, plus unique optics and many demonstrations.
This stuff has played to an international TV and media audience that conservatively is 20 million over the last 6 years from 22 TV shoots going to 16 countries. All of my photos are original and some of my techniques remain unique worldwide.
Sad that I can't get more than 9 new people from 4 photo groups with total 4000 members. Not even the free beer helped.

I have cancelled the March 14 photographers night in Bunbury. This was advertised to demonstrate an eclectic mix of dramatic high voltage Tesla coils and explosive effects and a variety of sublime light painting effects of photographs with a pixel stick, plus unique optics and many demonstrations.
This stuff has played to an international TV and media audience that conservatively is 20 million over the last 6 years from 22 TV shoots going to 16 countries. All of my photos are original and some of my techniques remain unique worldwide.
Sad that I can't get more than 9 new people from 4 photo groups with total 4000 members. Not even the free beer helped.___

posted image

2015-03-01 05:52:16 (3 comments, 0 reshares, 57 +1s)Open 

Open Day at my place Feb 21, 2015.
The big Tesla coil in a 29 second exposure
Photo credit: +Stephen Humpleby 

Open Day at my place Feb 21, 2015.
The big Tesla coil in a 29 second exposure
Photo credit: +Stephen Humpleby ___

posted image

2015-02-26 11:12:40 (11 comments, 0 reshares, 17 +1s)Open 

What is happening here?

What is happening here?___

posted image

2015-02-26 00:08:10 (3 comments, 1 reshares, 15 +1s)Open 

Open Day at my place Feb 21, 2015.
Bizarre comments please.

It is actually a row of CD's and steel wool on a wooden rod burning up.
Photo credit +Stephen Humpleby 

Open Day at my place Feb 21, 2015.
Bizarre comments please.

It is actually a row of CD's and steel wool on a wooden rod burning up.
Photo credit +Stephen Humpleby ___

posted image

2015-02-24 22:53:28 (5 comments, 1 reshares, 25 +1s)Open 

Open Day at my place Feb 21, 2015.
Musical Tesla coils and the crowd of about 50. 
Photo credit: +Stephen Humpleby 

Open Day at my place Feb 21, 2015.
Musical Tesla coils and the crowd of about 50. 
Photo credit: +Stephen Humpleby ___

posted image

2015-02-23 17:42:29 (3 comments, 0 reshares, 29 +1s)Open 

Open Day at my place Feb 21, 2015.
Next, exploding steel wool. My pulse capacitors again supply 9,000 volts at around 10,000 joules in a millisecond or less. The current passes through steel wool wrapped in alfoil. Definitely hands over the ears material.
Photo credit: +Stephen Humpleby 

Open Day at my place Feb 21, 2015.
Next, exploding steel wool. My pulse capacitors again supply 9,000 volts at around 10,000 joules in a millisecond or less. The current passes through steel wool wrapped in alfoil. Definitely hands over the ears material.
Photo credit: +Stephen Humpleby ___

posted image

2015-02-23 00:38:04 (8 comments, 2 reshares, 29 +1s)Open 

Open Day at my place 2015.
First off, exploding watermelons. My pulse capacitors supply 9,000 volts at around 10,000 joules in a millisecond or less. The current passes through a fine iron wire passed through the center of the watermelon. This is vaporized easily but is the seed conductor for the full lightning bolt like current that follows. Some of the spray of molten iron sparks is seen as the yellow flashes in the first photo. Rain jacket and face shield needed. I trigger the setup with a fine nylon line activating a specially designed heavy duty switch.
Photo credit: +Stephen Humpleby 

Open Day at my place 2015.
First off, exploding watermelons. My pulse capacitors supply 9,000 volts at around 10,000 joules in a millisecond or less. The current passes through a fine iron wire passed through the center of the watermelon. This is vaporized easily but is the seed conductor for the full lightning bolt like current that follows. Some of the spray of molten iron sparks is seen as the yellow flashes in the first photo. Rain jacket and face shield needed. I trigger the setup with a fine nylon line activating a specially designed heavy duty switch.
Photo credit: +Stephen Humpleby ___

posted image

2015-02-08 19:21:00 (5 comments, 0 reshares, 18 +1s)Open 

Our house is the other side of that fence. This was only a small local fire not much larger than what you see. Not sure how it was started.
I got my fire pump going (pumping from our pool) but about then the firies arrived and were in a better position to deal with it.
Good things about it. I got to use the petrol powered pump (bought 2 weeks ago) and there is now a buffer area which was occupied by tangled and prickly undergrowth. 
On of the firies leaned over the fence and asked "It wasn't your electricity stuff that started this was it?"
Lots of fires in the South West of WA at present.
http://www.bunburymail.com.au/story/2856467/firefighters-continue-to-battle-out-of-control-wa-bushfires-photos/

Our house is the other side of that fence. This was only a small local fire not much larger than what you see. Not sure how it was started.
I got my fire pump going (pumping from our pool) but about then the firies arrived and were in a better position to deal with it.
Good things about it. I got to use the petrol powered pump (bought 2 weeks ago) and there is now a buffer area which was occupied by tangled and prickly undergrowth. 
On of the firies leaned over the fence and asked "It wasn't your electricity stuff that started this was it?"
Lots of fires in the South West of WA at present.
http://www.bunburymail.com.au/story/2856467/firefighters-continue-to-battle-out-of-control-wa-bushfires-photos/___

posted image

2015-01-29 22:05:04 (2 comments, 0 reshares, 8 +1s)Open 

Making x-rays at home requires a Vacuum, I believe. I wonder if is is possible however and have been meaning to try with my Geiger which reads to 7keV gamma (=x-ray). 
Lightning making x-rays is well known however. 
http://news.nationalgeographic.com.au/news/2010/12/101223-lightning-x-rays-camera-science-technology/

Making x-rays at home requires a Vacuum, I believe. I wonder if is is possible however and have been meaning to try with my Geiger which reads to 7keV gamma (=x-ray). 
Lightning making x-rays is well known however. 
http://news.nationalgeographic.com.au/news/2010/12/101223-lightning-x-rays-camera-science-technology/___

posted image

2015-01-26 18:39:13 (1 comments, 1 reshares, 7 +1s)Open 

Open Day for Feb 21, 2015 Bunbury Western Australia.
This is the time I get to show off all my stuff, particularly the Tesla coil and high voltage stuff. Many people have not seen this stuff for real and it is dramatic.
It is an invitation only event at my place with perhaps 10 people from G+. I have a number restriction due to space limitations and vantage points in the different display arenas. The Physics Dept from UWA in Perth will be hopefully be helping out as they have done before. Preference give to those with an electrical/physics or special interest background. Or willingness and background to man one of the displays for an hour or so.
Travel time means that you would have to live in Perth (2h drive) or local around Bunbury.  I'm not sure that there are that many on G+ from that area but we'll see.  Other interest groups like the Tesla forum, science teachers and selecteds... more »

Open Day for Feb 21, 2015 Bunbury Western Australia.
This is the time I get to show off all my stuff, particularly the Tesla coil and high voltage stuff. Many people have not seen this stuff for real and it is dramatic.
It is an invitation only event at my place with perhaps 10 people from G+. I have a number restriction due to space limitations and vantage points in the different display arenas. The Physics Dept from UWA in Perth will be hopefully be helping out as they have done before. Preference give to those with an electrical/physics or special interest background. Or willingness and background to man one of the displays for an hour or so.
Travel time means that you would have to live in Perth (2h drive) or local around Bunbury.  I'm not sure that there are that many on G+ from that area but we'll see.  Other interest groups like the Tesla forum, science teachers and selected students, Gravity Discovery Center, Scitech, workmates and family friends make up some of the others.

My invitation blurb:

"See the Big Tesla coil in action with 2-3 meter sparks.  This is the one on the front page of my website.  Popular on the internet in the recent years with world first effects. Lots of different stunts. Some are interactive.  Total worldwide audience on TV, film and internet 3 million in 2014.
New Twin Musical Tesla coils played by Michael Terren.
Sparks onto me in the swimming pool. 
Huge smoke ring generator. Fun for grown up kids of all ages with 2 foot smoke rings that travel across the yard. Can crushing and exploding watermelons with powerful capacitors.
Liquid nitrogen stuff. It’s fascinating. Shatter a flower, hammer nails with a banana.
Lots of sparks, Lasers, Radioactivity, UV, superconductors and other strange stuff. Catch a ball under a strobe light, have a free electric shock, try soldering, and experience amazing magnets. See the world’s most powerful bike light. There will be over 30 displays of various projects. A lot of these are interactive."

Here is a sampler of previous Open days:  http://tesladownunder.com/Tesla%20display.htm#Open08

If you're interested, reply privately or email pterren@iinet.net.au The invitation is for yourself and partner. It is not suitable for children who are in primary school age or younger. Bring a camera/tripod if you wish but there will be nominated photographers and media there. I won't have time for chat - I run around like a blue-arsed fly for the whole night running everything and doing the stunts after 2 months preparation.
The media had some coverage in GWN TV, newspaper and radio.
I will give full details when I reply.___

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2015-01-26 15:58:27 (6 comments, 4 reshares, 54 +1s)Open 

This Antlion larva crawled into my shed. These dig conical sand pits and wait in the bottom to catch ants. After pupating they grow into delicate adults in the Lacewing family. Look at the colorful eye reflection in the adult which also has "eyeshine".
http://en.wikipedia.org/wiki/Antlion

This Antlion larva crawled into my shed. These dig conical sand pits and wait in the bottom to catch ants. After pupating they grow into delicate adults in the Lacewing family. Look at the colorful eye reflection in the adult which also has "eyeshine".
http://en.wikipedia.org/wiki/Antlion___

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2015-01-25 02:35:29 (4 comments, 2 reshares, 17 +1s)Open 

This is a remote controlled fish-shaped helium balloon. You control it by using the controller to flap the tail which give a rather more realistic movement. Another control alters a balance weight to go up or down. It just glides quietly around.
Note the other Nemo type clownfish?

This is a remote controlled fish-shaped helium balloon. You control it by using the controller to flap the tail which give a rather more realistic movement. Another control alters a balance weight to go up or down. It just glides quietly around.
Note the other Nemo type clownfish?___

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2015-01-25 02:34:55 (0 comments, 0 reshares, 15 +1s)Open 

This is a Batman transmitter.

This (was meant to be) a zinc oscillator. Heat a zinc-coated (galvanised) nail to get zinc oxide and touch it in various places with a wire until you get some non-linear behaviour which can be the basis of an oscillator at RF frequencies.
Never really worked for me on a quick try but got a lot of odd waveforms to applied sinewave AC.
I hope to revisit this sometime and I have some stuff that might really boost my geek cred if I can get it going.___This is a Batman transmitter.

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