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Did you know?
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
There are 60,000 miles of blood vessels in every adult human.