Cows can sleep standing up, but they can only dream lying down.
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The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
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Your body is creating and killing about 2.4 million red blood cells per second.
17
No one knows Albert Einstein's last words. Just before he passed, he spoke several words in German, but his nurse only knew English.
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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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