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Smelting Metal with the Sun

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Written by Paul Strauss | November 4, 2022

Remember when you were a kid and burnt leaves with the sun and a magnifying glass? This is just like that, only bigger. For his graduation presentation, Jelle Seegers built a metal rig with a handmade fresnel lens on top that can concentrate solar rays tightly enough to smelt metal. It can achieve temperatures up to 1000ÂșC.

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