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Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

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People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

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The horizontal fraction bar was introduced by the Arabs.

Antoine-Laurent de Lavoisier is considered the "Father of Modern Chemistry". Antoine-Laurent de Lavoisier is considered the "Father of Modern Chemistry".
The Oase I mandible, earliest modern human in Europe. The Oase I mandible, earliest modern human in Europe.
The Human Genetic Code The Human Genetic Code
Drugs, Behavior, and Modern Society (8th Edition) Drugs, Behavior, and Modern Society (8th Edition)
Birth of Modern Astronomy Birth of Modern Astronomy
Adaptive alleles in modern humans Adaptive alleles in modern humans
Video: Neural Reflex Arc Animation

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