« previous next »
« previous next »
 

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

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?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

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

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Energy budget for a temperate deciduous forest (data from Gosz et al. 1978). Energy budget for a temperate deciduous forest (data from Gosz et al. 1978).
Role of binding energy in catalysis Role of binding energy in catalysis
Locations of key energy meridians and acupoints for the back, shoulder, arm, neck, head, and face. Locations of key energy meridians and acupoints for the back, shoulder, arm, neck, head, and face.
Nuclear energy Nuclear energy
Wind energy Wind energy
If the period of a square wave is 22 ms, what is its frequency? If the period of a square wave is 22 ms, what is its frequency?
Video: Tuberculosis Testing

For a complete list of videos, visit our video library