« previous next »
« previous next »
 

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Outer Space Outer Space
Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int
The path of sound waves through the outer, middle, and inner ear. The path of sound waves through the outer, middle, and inner ear.
Distribution of bonding and outer nonbonding electrons in the peptide group Distribution of bonding and outer nonbonding electrons in the peptide group
Thumb press Inner and Outer Bladder meridians in upper back between shoulder blades; press into ... Thumb press Inner and Outer Bladder meridians in upper back between shoulder blades; press into ...
Normal tympanic membrane with cone of light and process of malleus Normal tympanic membrane with cone of light and process of malleus
Video: Embryonic development - week 1 and 2

For a complete list of videos, visit our video library