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Planta Solar 10, Seville, Spain. "The 11 megawatt (MW) solar power tower produces electricity with 624 large movable mirrors called heliostats. [...] Each of the mirrors has a surface measuring 120 m² (1,292 square feet) that concentrates the sun's rays to the top of a 115 metre (377 ft) high, 40-storey tower where a solar receiver and a steam turbine are located. The turbine drives a generator, producing electricity."
Gel fridge: put your stuff in it and the gel keeps it cool. when your reach in and take it out, the gel automatically reforms.
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