« previous next »
« previous next »
 

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?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

There are more bacteria in your mouth than there are people in the world.

This billboard in India caught my attention. As the text indicates, even though India is ... This billboard in India caught my attention. As the text indicates, even though India is ...
A container with gasoline containing alcohol. Notice the separation line where the alcohol-water ... A container with gasoline containing alcohol. Notice the separation line where the alcohol-water ...
A potentiometer uses a movable contact to vary resistance and send an analog voltage to the PCM. A potentiometer uses a movable contact to vary resistance and send an analog voltage to the PCM.
Text and drive Text and drive
A container in the shape of a right circular cylinder with no top has surface area square feet. A container in the shape of a right circular cylinder with no top has surface area square feet.
Video: Oral Hygiene & Braces Animation

For a complete list of videos, visit our video library