In 1864, the first barbiturate (barbituric acid) was synthesized.
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The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.
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There are more sensory neurons in the tongue than in any other part of the body.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
Micrographs of nerve cells taken with different types of light microscopes.
Types of catheters: Suprapubic catheter.
Cultures Ideal Body Types
Examples of the Types of Cards Used in a Test of Inductive Reasoning