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Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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?
Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).