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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

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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.

L. Frank Baum, author of The Wonderful Wizard of Oz (1900) and a fan of William Jennings Bryan, perh L. Frank Baum, author of The Wonderful Wizard of Oz (1900) and a fan of William Jennings Bryan, perh
What emotions are these people expressing? Are these emotions global? Is their way of expressing ... What emotions are these people expressing? Are these emotions global? Is their way of expressing ...
How to find the anti-derivative of a function (Part 1) How to find the anti-derivative of a function (Part 1)
How to find the anti-derivative of a function (Part 2) How to find the anti-derivative of a function (Part 2)
How to find the volume and surface area of any triangular prism How to find the volume and surface area of any triangular prism
Collage of people showing emotions Collage of people showing emotions
Video: EpiPen Animation (Part 1)

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