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Jumbo squid attacks camer...
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Jumbo squid up to 2 metres long have invaded waters off the central coast of Cal...
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Fresnel Lens Part #1 Free...
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Started building my fresnel lens today. Check out this site: www.greenpowerscien...
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High Speed Slow Motion SO...
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This is another Slow motion High FPS video with Soy Milk an a Stick in the beam ...
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FRESNEL LENS 1 SUN COLLEC...
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www.greenpowerscience.com GIANT MAGNIFYING GLASS FRESNEL LENS SOLAR POWER GREEN ...
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ROUND FRESNEL LENS ON A S...
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www.greenpowerscience.com DEMONSTRATION MODEL OF A FRESNEL LENS PERFECT FOR FAST...
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Views: (1436) Date: (13-12-09) Time: (00:01:04) |
Description: This is the largest crystal clear Fresnel Lens I have ever personally seen. It is just under 2 sq meters total and measures a whopping 60" x 48". The concentration factor is close to 3000:1 I recored temperatures in excess of 3000f in 5 seconds without proper focus. I planned a video today but the rain came. Hopefully tomorrow we can play:-)