An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
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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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The electric chair was invented by a dentist!
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The Google driverless car has only encountered two accidents. The first it was rear ended at a stop sign, and the second was when a human was behind the wheel.
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In the early 1960's, Porsche commercially manufactured farm tractors.
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Jumbo jets use 4,000 gallons of fuel to take off.
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Future biotechnology could be used to trick a prisoner's mind into thinking they have served a 1,000 year sentence in only eight hours, a group of scientists have claimed.
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