Sony researchers have developed a refrigerator that only opens when you smile.
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Energy is being wasted if a toaster is left plugged in after use.
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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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A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
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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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