Burning-it-With-the-Power-o

Burning it With the Power of the Sun

Melt a stack of pennies, burst a glass bottle, damage various food items, and incinerate wood using the power of the Sun! This 4 foot magnifying lens will melt concrete, and nearly anything else that gets in its way.

source: Burning stuff with 2000ºF solar power using a Fresnel lens from a old TV

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