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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.
Did you know?
Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.

