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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Mico headphones read your brainwaves and select music based on your state of mind.
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Car airbags kill 1 person for every 22 lives that they save.
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Originally, BMW was an airplane engine manufacturer.
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The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
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Surgeons who grew up playing video games make 37 percent fewer mistakes.
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The average car produces a pound of pollution every 25 miles!
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