« previous next »
« previous next »
 

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

A controlled fire being set as part of ecosystem management in Jasper National Park. A controlled fire being set as part of ecosystem management in Jasper National Park.
Fire rainbow Fire rainbow
An ABC fire extinguisher is safe for most fires. An ABC fire extinguisher is safe for most fires.
A typical fire extinguisher designed to be used on class A, B, or C fires. A typical fire extinguisher designed to be used on class A, B, or C fires.
The Nature of Environmental Science: A fireman battles with a forest fire The Nature of Environmental Science: A fireman battles with a forest fire
Refer to (d) in the figure above. This rectifier arrangement Refer to (d) in the figure above. This rectifier arrangement
Video: Coronary Heart Disease Animation

For a complete list of videos, visit our video library