Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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Your body is creating and killing about 2.4 million red blood cells per second.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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The strangers in your dreams are actually people that you've seen in real life.
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Cows can sleep standing up, but they can only dream lying down.
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Lurch, a Watusi bull, had the largest horns in the world.
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