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 normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
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There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
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The electric chair was invented by a dentist!
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The cigarette lighter was invented before the match.
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