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 are only 14 blimps in the world.
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Energy is being wasted if a toaster is left plugged in after use.
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A small airplane can fly backwards.
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Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
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