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Did you know?
During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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The average office desk has 400 times more bacteria on it than a toilet.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

