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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
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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 first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.