http://www.greenpowerscience.com/
This video shows the power of direct cooking. It is 5 times faster than bottom cooking but requires a lot of experience and requires caution.
This is our third cooking episode using only a large Fresnel Lens and ONLY the power of the sun.
http://www.greenpowerscience.com/
Duration : 0:1:39
http://www.greenpowerscience.com/
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