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I have said it before, cooking is a science. It is a great way to inspire young people to be interested in cooking as well as in science.

There is a thread "Need help with graduation party menu". I think it will be interesting for the kids to do some solar energy cooking.

Most solar ovens are not practical. They cook way too slow, cannot BBQ and requiring special cookware. A parabolic reflector or a Fresnel lens solar oven is more useful, but they are very expensive.

I have discovered a great way to make a Fresnel solar oven. Go to your local recycling center and look for a large rear screen projection TV. Right behind the front screen you will find a thin sheet of plastic lens. This is what is known as Fresnel lens. It costs a couple of hundred dollars to purchase.

Put this lens in a simple wood frame and youÂve got yourself a powerful solar cooker. It can grill hamburgers, hot dogs, bake, roast, BBQ ----. Be careful, itÂs powerful and can start a log on fire in a few seconds.

A great thing to have for camping and for motor homes.

dcarch









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