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Author Question: You paid $90 for a psychology textbook at the beginning of the semester. At the end of the semester ... (Read 62 times) |
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.
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There are 60,000 miles of blood vessels in every adult human.
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.