« previous next »
« previous next »
 

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

There are several laws of thermodynamics critical to understanding physical processes. Two of those There are several laws of thermodynamics critical to understanding physical processes. Two of those
Potential Constitutional Challenges to Loitering, Panhandling, and Sit-Lie Laws Potential Constitutional Challenges to Loitering, Panhandling, and Sit-Lie Laws
When the United States gets stuck over a controversial issue—usually something a divided Congress ca When the United States gets stuck over a controversial issue—usually something a divided Congress ca
Laws Governing Collection Laws Governing Collection
How to use the laws of exponents to simplify an expression (Part 1) How to use the laws of exponents to simplify an expression (Part 1)
Understanding the laws of exponents Understanding the laws of exponents
Video: Role of the respiratory system - effect of altered ventilation rates

For a complete list of videos, visit our video library