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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Blood is approximately twice as thick as water because of the cells and other components found in it.