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The average office desk has 400 times more bacteria on it than a toilet.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).