« previous next »
« previous next »
 

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

The frontal lobe (green) bounded by the Sylvian fissure (yellow line) and central sulcus (red line), The frontal lobe (green) bounded by the Sylvian fissure (yellow line) and central sulcus (red line),
Because of immature visual-motor coordination, young children find it hard to throw and catch small ... Because of immature visual-motor coordination, young children find it hard to throw and catch small ...
The relationship between the height of the firing line and length of the spark line can be ... The relationship between the height of the firing line and length of the spark line can be ...
Excel hardware is introducing a new product on a new product line of capacity 800 units per ... Excel hardware is introducing a new product on a new product line of capacity 800 units per ...
Nick buys a $25 000, 5.4% bond with quarterly interest coupons, 3 years before maturity, to ... Nick buys a $25 000, 5.4% bond with quarterly interest coupons, 3 years before maturity, to ...
Time Line for Life’s Origin and Evolution Time Line for Life’s Origin and Evolution
Video: Chemical Synapse Animation

For a complete list of videos, visit our video library