Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

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?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

For a complete list of videos, visit our video library