« previous next »
« previous next »
 

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

3 Areas of damage after a myocardial infarction 3 Areas of damage after a myocardial infarction
How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives
Steel-toed shoes are a worthwhile investment to help prevent foot injury due to falling objects. ... Steel-toed shoes are a worthwhile investment to help prevent foot injury due to falling objects. ...
Sensation Activity: Sight (2 of 2) Sensation Activity: Sight (2 of 2)
Orbital Motion of Earth and Other Planets Orbital Motion of Earth and Other Planets
molecular orbital theory molecular orbital theory
Video: Uterine (menstrual) cycle - phases

For a complete list of videos, visit our video library