Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
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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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There's a Mumbai-based pizzeria that now delivers pizza by drone.
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The life boat was patented in 1845!
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The cigarette lighter was invented before the match.
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The electric chair was invented by a dentist!
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Sony researchers have developed a refrigerator that only opens when you smile.
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