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Did you know?

The horizontal fraction bar was introduced by the Arabs.

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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Benign prostatic hyperplasia. The condition results when an inner capsule of nonfunctional prostate Benign prostatic hyperplasia. The condition results when an inner capsule of nonfunctional prostate
Growth of the body and brain is dramatic over the first 2 years. Growth of the body and brain is dramatic over the first 2 years.
Microscopic Components of Osseous Tissue Microscopic Components of Osseous Tissue
Growth in Cold and Cool Clouds Growth in Cold and Cool Clouds
U.S. Output and Productivity Growth, 1870–2007 U.S. Output and Productivity Growth, 1870–2007
Skin structure. Three-dimensional view of the skin, subcutaneous tissue, glands, and hairs Skin structure. Three-dimensional view of the skin, subcutaneous tissue, glands, and hairs
Video: Five phases of cardiac cycle & Atrial contraction

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