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Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Reindeer standing on snow to avoid blood-sucking insects. Reindeer standing on snow to avoid blood-sucking insects.
The reflection nebula NGC 1999 is brilliantly illuminated by V380 Orionis (center), a variable star The reflection nebula NGC 1999 is brilliantly illuminated by V380 Orionis (center), a variable star
The Hubble Space Telescope The Hubble Space Telescope
Functions and Properties of Blood Functions and Properties of Blood
Hubble Space telescope Hubble Space telescope
Deducing fetal genome sequences from maternal blood Deducing fetal genome sequences from maternal blood
Video: What is Reverse Osmosis?

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