Fresnel Lens Demo

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Uploaded by on Sep 3, 2010

Use welding goggles when using Fresnel Lenses! The focal point is extremely bright and can damage your eyes!

This lens is 16 x 13 bought for $60 CDN. I'm going to be using this to heat a copper pipe with water flowing through it to help augment my DIY solar heater made of black coil. The trick is keeping the focal point while the sun moves... :(

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Science & Technology

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