Convert a junk TV into a 2000ºF solar cooker. Check out this video from The King of Random and learn how to make your own solar cooker out of an old rear projection TV, and some of the things you can do with it!
These TV’s are old, extremely heavy, and are breaking down on people everywhere. They usually cost more to fix than they could be sold for, so people are begging you to come take them away for free!
I usually find mine on the classified adds under the “free” section, but they are also common on the sides of streets and alleyways where people have left them for trash.
These lenses are found in “rear-projection” televisions and not all are the same. Some are discolored, and some concentrate to a beam rather than a point. The particular screen used in this video was a crystal clear acrylic lens that focused to a point.
You can also see this video for examples of these different lenses.
This project should not be attempted without adult supervision and adequate training. Misuse, or careless use, of tools or projects may result in serious injury or death. Heat generated from a Fresnel lens can exceed 2000ºF and cause serious damage to persons or property. Use of this video content is at your own risk.