30 Jun '16, 2am

The Godzilla of Solar Ovens

Photo: Manuel Litran/Paris Match/Getty Images The double-mirror solar furnace in Mont-Louis, France. Constructed in 1949 in the citadel of Mont-Louis in the French Pyrenees, this double-mirror solar furnace [PDF] concentrated the sun’s rays to melt just about anything that wandered into its 3,000 °C beam. Engineer Félix Trombe [shown below] designed the solar furnace and used it for high-temperature experiments on materials and to demonstrate how to fire ceramics without using wood. In 1975 the solar furnace was removed from the center of the citadel to a spot near the city walls, where it continues to be used for educational purposes . On a sunny day, the furnace can concentrate 50 kilowatts of solar energy into an area of just a few square centimeters. This is enough focused radiation to instantly ignite wood or liquefy a steel plate in a matter of seconds: The success o...

Full article: http://spectrum.ieee.org/geek-life/history/the-godzilla-o...

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The Godzilla of Solar Ovens

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