Technically speaking, crystal glass is actually a Liquid that flows very slowly.
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Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
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To have your picture taken by the very first camera you would have had to sit still for 8 hours!
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The IRS processes more than 2 billion pieces of paper each year.
28
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12