The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
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Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
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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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In 1998, Sony accidently sold 700,000 camcorders that had the technology to see through people's clothes.
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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.
12
The life boat was patented in 1845!
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