« previous next »
« previous next »
 

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Stages of General Anesthesia Stages of General Anesthesia
Liquid Formulations of Herbal Products Liquid Formulations of Herbal Products
A tester that uses a blue liquid to check for exhaust gases in the exhaust, which would indicate a ... A tester that uses a blue liquid to check for exhaust gases in the exhaust, which would indicate a ...
If the gauge reading is now much higher than the first test results, then the cause of the low ... If the gauge reading is now much higher than the first test results, then the cause of the low ...
Since 1991, General Motors engines have been equipped with slightly (1/8 inch or 3 mm) longer spark ... Since 1991, General Motors engines have been equipped with slightly (1/8 inch or 3 mm) longer spark ...
General mechanism of egg formation in animals General mechanism of egg formation in animals
Video: Role of the respiratory system - effect of altered ventilation rates

For a complete list of videos, visit our video library