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Author Question: Babbage's engine was used for years as a mechanical calculator in odometers. (Read 244 times) |
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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.
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Everyone has one nostril that is larger than the other.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
History of the number of observed sunspots during the last 250 years, which shows the ~11-year solar
To examine a child’s ear, the pinna should be pulled back and up for children over 3 years; the pinn