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Author Question: What is illustrated by our perception of reversible figures? (Read 42 times) |
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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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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.