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Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

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People about to have surgery must tell their health care providers about all supplements they take.

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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 first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

The structural formulas show the state of ionization that would predominate at pH 7.0 The structural formulas show the state of ionization that would predominate at pH 7.0
National Guardsmen firing into a crowd of antiwar protesters at Kent State University killed four ... National Guardsmen firing into a crowd of antiwar protesters at Kent State University killed four ...
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Electrophoresis gel in a densitometer. (a) The green light from the slit light source is visible ... Electrophoresis gel in a densitometer. (a) The green light from the slit light source is visible ...
Speed of Convergence to the Steady State Speed of Convergence to the Steady State
Video: Role of the respiratory system - effect of altered ventilation rates

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