« previous next »
« previous next »
 

Did you know?

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

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

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

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

the comet Encke riding along its pebbly trail of debris (long diagonal line) between the orbits of M the comet Encke riding along its pebbly trail of debris (long diagonal line) between the orbits of M
The Long Valley Caldera Erupted the Bishop Ash 760,000 Years Ago The Long Valley Caldera Erupted the Bishop Ash 760,000 Years Ago
Specific Drugs and their Potential for Dependence Specific Drugs and their Potential for Dependence
Long-range forecasts Long-range forecasts
Allele-specific oligonucleotide (ASO) testing for the -globin gene and sickle-cell anemia Allele-specific oligonucleotide (ASO) testing for the -globin gene and sickle-cell anemia
Long division of polynomials Long division of polynomials
Video: Phlebotomy

For a complete list of videos, visit our video library