« previous next »
« previous next »
 

Did you know?

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

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

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?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Feedforward control of breathing rate in an animal trained for athletic exercise. Feedforward control of breathing rate in an animal trained for athletic exercise.
SpaceShipOne completed the first manned private spaceflight in 2004, reaching an altitude of 100.124 SpaceShipOne completed the first manned private spaceflight in 2004, reaching an altitude of 100.124
Increasing Separation of Masters and Workers Increasing Separation of Masters and Workers
Wind turbines: the fastest-growing energy sector Wind turbines: the fastest-growing energy sector
Effect of Increasing the Investment Rate on the Steady State Effect of Increasing the Investment Rate on the Steady State
If a graph has the following x-intercepts, which value of x is the instantaneous rate of change ... If a graph has the following x-intercepts, which value of x is the instantaneous rate of change ...
Video: Regulation of GFR: autoregulation via myogenic mechanism Myogenic mechanism

For a complete list of videos, visit our video library