In 1864, the first barbiturate (barbituric acid) was synthesized.
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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
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The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.
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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
The three domains of life
The life cycle of the genus Pinus
How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay?
