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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Did you know?
When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").