Let The Sun Shine In.

[dcarch]

Do you have children? Grandchildren? You can really impress them with this simple project and inspire them to have an interest in science.

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 if you purchase it.

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

A great thing to have for camping, backyard BBQ and for motor homes.
Wear sunglasses when you use this cooker.

dcarch