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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.
Did you know?
Approximately 25% of all reported medication errors result from some kind of name confusion.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.