The Science of Design: Cooking With Sunshine

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By harnessing light from the sun, this two square meter round focus can burn through anything, yes, anything! Focusing light from over 93,000,000 miles away, this device can reach temperatures up to 2500 Fahrenheit. 

In the demonstration below, they spray a mist from a water bottle to show where the focus of the beam of light is and then they illustrate the extreme power of the light by burning a wooden board, a steel bolt and even a rock!

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