The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
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Cows can sleep standing up, but they can only dream lying down.
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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
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