Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
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Your thumb is about the same size as your nose.
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A cow produces around 200,000 glasses of milk in her lifetime.
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The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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