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Author Question: In a contest, two tractors pull two identical blocks of stone the same distance over identical ... (Read 3440 times) |
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.