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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Did you know?
Approximately 25% of all reported medication errors result from some kind of name confusion.
Did you know?
The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.