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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In 1998, Sony accidently sold 700,000 camcorders that had the technology to see through people's clothes.
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All GPS units sold in the civilian market have to be programmed to deactivate themselves if they detect they are travelling faster than 1200 MPH or are above 60,000 feet in altitude to prevent them being used in intercontinental ballistic missiles.
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There are only 14 blimps in the world.
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There's a Mumbai-based pizzeria that now delivers pizza by drone.
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The electric chair was invented by a dentist!
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