Technically speaking, crystal glass is actually a Liquid that flows very slowly.
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The life boat was patented in 1845!
29
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The electric chair was invented by a dentist!
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There are only 14 blimps in the world.
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Sony researchers have developed a refrigerator that only opens when you smile.
9
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
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