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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.
Did you know?
According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.