« previous next »
« previous next »
 

Did you know?

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

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?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Running time on 100-meter sprint for men and women master athletes increases with age. Source: Korho Running time on 100-meter sprint for men and women master athletes increases with age. Source: Korho
William Kentridge, History of the Main Complaint. William Kentridge, History of the Main Complaint.
William Kentridge, History of the Main Complaint. William Kentridge, History of the Main Complaint.
Math work Math work
Math work Math work
A chemical reaction is run in which 447 Joules of work is done by the system and A chemical reaction is run in which 447 Joules of work is done by the system and
Video: Spermatogenesis Animation

For a complete list of videos, visit our video library