« previous next »
« previous next »
 

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Using outgroups to infer the ancestral state Using outgroups to infer the ancestral state
Steady-state kinetic analysis of bisubstrate reactions Steady-state kinetic analysis of bisubstrate reactions
The Scopes Trial: William Jennings Bryan (right) represented the state of Tennessee, and Clarence Da The Scopes Trial: William Jennings Bryan (right) represented the state of Tennessee, and Clarence Da
State Laws on Abortion prior to Roe v. Wade, 1973 State Laws on Abortion prior to Roe v. Wade, 1973
Determination of Steady-State Weight Determination of Steady-State Weight
US federal budget deficit/surplus and debt US federal budget deficit/surplus and debt
Video: Language Areas Animation

For a complete list of videos, visit our video library