« previous next »
« previous next »
 

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Copepods, from Ernst Haeckel's 1904 work Kunstformen der Natur Copepods, from Ernst Haeckel's 1904 work Kunstformen der Natur
Examples of characteristics measured by palpation Examples of characteristics measured by palpation
Work and Gender: Women at Work in India Work and Gender: Women at Work in India
Removing the bed from a pickup truck makes gaining access to the fuel pump a lot easier. Removing the bed from a pickup truck makes gaining access to the fuel pump a lot easier.
Spring force, crankcase pressure, and intake manifold vacuum work together to regulate the flow rate ... Spring force, crankcase pressure, and intake manifold vacuum work together to regulate the flow rate ...
Role of Factors of Production in Determining Output per Worker, 2009 Role of Factors of Production in Determining Output per Worker, 2009
Video: Major Elements in Biological Molecules: Proteins

For a complete list of videos, visit our video library