A fuel cell converts chemical energy directly into electricity with higher efficiency than combustion engines.
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QWERTY keyboard layout was designed in 1873 partly to separate commonly used letter pairs and reduce mechanical jamming.
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The microwave oven was invented accidentally when Percy Spencer noticed a radar magnetron melted a chocolate bar in his pocket.
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The first website ever created is still online at info.cern.ch.
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The 3D printer allows objects to be built layer by layer.
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Iceland runs almost entirely on geothermal and hydroelectric energy — it is one of the greenest countries on Earth.
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The Shanghai Maglev train reaches extremely high speeds.
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The battery stores and releases electrical energy.
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The electric motor converts electrical energy into motion.
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