« previous next »
« previous next »
 

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Some uses of recombinant DNA technology for making improved vaccines Some uses of recombinant DNA technology for making improved vaccines
Having a time zone map located near the telephone will assist you when making long distance calls ou Having a time zone map located near the telephone will assist you when making long distance calls ou
The Making of Black Harlem The Making of Black Harlem
Using a torque wrench to tighten connecting rod nuts on an engine. Using a torque wrench to tighten connecting rod nuts on an engine.
Nuts are also a good source of dietary fibre Nuts are also a good source of dietary fibre
Making moves Making moves
Video: Introduction to Eating Disorders

For a complete list of videos, visit our video library