|
|
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.
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?
Thyroid conditions may make getting pregnant impossible.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.