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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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The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

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A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

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The human body produces and destroys 15 million blood cells every second.

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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

The thick bark of the cork oak of the Mediterranean region protects the tree from fire. The thick bark of the cork oak of the Mediterranean region protects the tree from fire.
A star-forming region in the Large Magellanic Cloud. A star-forming region in the Large Magellanic Cloud.
The pineal gland is a part of the thalamus region of the brain. It secretes melatonin. The pineal gland is a part of the thalamus region of the brain. It secretes melatonin.
These young adults look forward to a life together as they celebrate their wedding These young adults look forward to a life together as they celebrate their wedding
A propaganda poster enshrining Stalin proclaims that he has led his people “Forward to ... A propaganda poster enshrining Stalin proclaims that he has led his people “Forward to ...
Forward flexion of the spine Forward flexion of the spine
Video: Subunits of DNA And Semi Conservative Replication

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