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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
Did you know?
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.