/ck/ - Food & Cooking

>>10162732
It is a Fresnel lens from an old projection tv. It is a giant magnifying glass as big as a projection tv. You can destroy just about anything with them if the focal point is focused to be as small as possible or make it larger to cook something with less heat. It is the equivalent of 600 to 1000 watts concentrated down to the head of a pin or whatever diameter you wish. The larger the lens, the more powerful it is.

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