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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A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
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Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
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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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First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
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The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
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The electric chair was invented by a dentist!
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