« previous next »
« previous next »
 

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Information flows from the nucleus to the cytoplasm and back. Information flows from the nucleus to the cytoplasm and back.
Magnet Poles Magnet Poles
Activation energy of uncatalyzed and catalyzed chemical reactions Activation energy of uncatalyzed and catalyzed chemical reactions
Shake the calf muscles. Pick up the calf muscles with one hand, and shake them back and forth. Shake the calf muscles. Pick up the calf muscles with one hand, and shake them back and forth.
The Visible Spectrum of Electromagnetic Energy The Visible Spectrum of Electromagnetic Energy
Expressing amounts of energy in different energy units is necessary to solve many chemistry ... Expressing amounts of energy in different energy units is necessary to solve many chemistry ...
Video: Medullary osmotic gradient: countercurrent multiplier, urea recycling & vasa recta countercurrent exchange

For a complete list of videos, visit our video library