« previous next »
« previous next »
 

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

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

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

A juvenile and a female torrent duck on the Urubamba River, Peru A juvenile and a female torrent duck on the Urubamba River, Peru
The Allen Test: Pallor is initiated by compressing the radial and ulnar arteries with the fist clenc The Allen Test: Pallor is initiated by compressing the radial and ulnar arteries with the fist clenc
The Dietary Reference Intakes Are Reference Values for Each Nutrient The Dietary Reference Intakes Are Reference Values for Each Nutrient
Juvenile buzzard being weighed for research Juvenile buzzard being weighed for research
A police record search of 250 incoming Grade 10 at a Secondary School shows that 26 had been ... A police record search of 250 incoming Grade 10 at a Secondary School shows that 26 had been ...
Video: Optic Nerve and Optic Disk Animation (Part 1 of 2)

For a complete list of videos, visit our video library