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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Your heart beats over 36 million times a year.
Did you know?
There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
The FDA recognizes 118 routes of administration.