Ask unlimited questions for free
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
Thyroid conditions may make getting pregnant impossible.
Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
Everyone has one nostril that is larger than the other.
For a complete list of videos, visit our video library