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Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

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The horizontal fraction bar was introduced by the Arabs.

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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Rice lines Rice lines
Imaginary Thoracic Lines, Anterior View Imaginary Thoracic Lines, Anterior View
Secondary intravenous lines: (a) a tandem intravenous alignment Secondary intravenous lines: (a) a tandem intravenous alignment
Wassily Kandinsky, Black Lines (Schwarze Linien). Wassily Kandinsky, Black Lines (Schwarze Linien).
Bolts and screws have many different heads. The head determines what tool is needed. Bolts and screws have many different heads. The head determines what tool is needed.
Hall-effect switches use metallic shutters to shunt magnetic lines of force away from a silicon ... Hall-effect switches use metallic shutters to shunt magnetic lines of force away from a silicon ...
Video: Michaelis–Menten equation & Kinetic parameters

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