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Author Question: Bell Telephone Laboratories invented the ________, which replaced the vacuum tube. (Read 337 times) |
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.
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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.
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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.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").