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 toaster uses almost half as much energy as a full-sized oven.
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Sony researchers have developed a refrigerator that only opens when you smile.
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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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The electric chair was invented by a dentist!
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Castor oil is used as a lubricant in jet planes.
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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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