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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Kleenex tissues were originally used as filters in gas masks.
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Car airbags kill 1 person for every 22 lives that they save.
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There’s an internet-enabled jacket which gives you a “hug” every time a Facebook friend likes your status.
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