« 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?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

simple squamous kidney simple squamous kidney
A simple motif, the β-α-β loop A simple motif, the β-α-β loop
The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing
Interventions for Selected Co-Occurring Conditions Interventions for Selected Co-Occurring Conditions
Weather Forecast Weather Forecast
A mobile weather station that can be used to gather current weather data at the scene of hazardous ... A mobile weather station that can be used to gather current weather data at the scene of hazardous ...
Video: Role of transport in a cell

For a complete list of videos, visit our video library