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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
Did you know?
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
Did you know?
Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.