There are more nerve cells in one human brain than there are stars in the Milky Way.
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Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.
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The average office desk has 400 times more bacteria on it than a toilet.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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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.
The original Magdeburg hemispheres (lower left) used to demonstrate Otto von Guericke's vacuum
Use fingertips to apply deep friction to mobilize the scalp. Apply with one hand and brace with the ...