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Did you know?
Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.