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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
Did you know?
Medication errors are three times higher among children and infants than with adults.
Did you know?
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.