Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
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There was a pre-WWII movement called Technocracy, which held that scientists and engineers should take over the government and economy from politicians and economists. The leader of the movement was known as the Great Engineer.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Every year your body replaces 98% of your atoms.
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If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
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