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Did you know?
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Did you know?
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.
Did you know?
Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.