« 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?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

The comet Ikeya-Zhang exhibiting a bright, condensed coma (March 2002) The comet Ikeya-Zhang exhibiting a bright, condensed coma (March 2002)
The Passenger Pigeon—a Recent Extinction Example The Passenger Pigeon—a Recent Extinction Example
A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan
Grace Service, a YMCA missionary, explained that these porters worked at the base of Mount Omei in S Grace Service, a YMCA missionary, explained that these porters worked at the base of Mount Omei in S
Marina Abramović, The House with the Ocean View—Nov. 22 9:54 am, 2002. Living installation. Marina Abramović, The House with the Ocean View—Nov. 22 9:54 am, 2002. Living installation.
An organizational specialist is hired as a consultant to a company planning to open a coffee ... An organizational specialist is hired as a consultant to a company planning to open a coffee ...
Video: The Nerve Impulse

For a complete list of videos, visit our video library