|
|
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
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."
Did you know?
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
Did you know?
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.