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Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

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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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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

lower digestive lower digestive
Stretching the muscles of the hip and lower back with diagonal adduction of the bent leg. Stretching the muscles of the hip and lower back with diagonal adduction of the bent leg.
Stretching the flexors of the foot in plantarflexion, recipient prone. Lower leg perpendicular to ... Stretching the flexors of the foot in plantarflexion, recipient prone. Lower leg perpendicular to ...
Kyoto Protocol encourages industry to innovate and reduce the level of emissions Kyoto Protocol encourages industry to innovate and reduce the level of emissions
Real Price of Oil, 1861–2010 Real Price of Oil, 1861–2010
The profit, p(t), made at a fair depends on the price of the ticket, t. The profit is modelled ... The profit, p(t), made at a fair depends on the price of the ticket, t. The profit is modelled ...
Video: Pasteur's Experiment

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