« previous next »
« previous next »
 

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

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

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?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Wheel-Running Activity of a Rat Wheel-Running Activity of a Rat
All fuel injectors should make the same sound with the engine running at idle speed. A lack of sound ... All fuel injectors should make the same sound with the engine running at idle speed. A lack of sound ...
Start the vehicle’s engine and let run at 1000–1500 RPM. The engine is now running on fuel ... Start the vehicle’s engine and let run at 1000–1500 RPM. The engine is now running on fuel ...
Lattice Parameter Relationships and Figures Showing Unit Cell Geometries for the Seven Crystal Syste Lattice Parameter Relationships and Figures Showing Unit Cell Geometries for the Seven Crystal Syste
Running Water Running Water
Sprinting, running and lactic acid fermenation Sprinting, running and lactic acid fermenation
Video: Global warming and its effect on climate change

For a complete list of videos, visit our video library