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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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The horizontal fraction bar was introduced by the Arabs.
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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.