« previous next »
« previous next »
 

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Cutaway of a V-8 engine showing the lifters, pushrods, roller rocker arms, and valves. Cutaway of a V-8 engine showing the lifters, pushrods, roller rocker arms, and valves.
Roller lifter from a GM Duramax 6.6 liter V-8 diesel engine. Notice the size of this lifter compared ... Roller lifter from a GM Duramax 6.6 liter V-8 diesel engine. Notice the size of this lifter compared ...
Coolant flow through a typical engine cooling system. Coolant flow through a typical engine cooling system.
To prevent ignition and fuel-injection operation while the engine is being cranked, remove both the ... To prevent ignition and fuel-injection operation while the engine is being cranked, remove both the ...
A port fuel-injected engine that is equipped with long, tuned intake-manifold runners. A port fuel-injected engine that is equipped with long, tuned intake-manifold runners.
Air flows through the PCV valve during acceleration and when the engine is under a heavy load. Air flows through the PCV valve during acceleration and when the engine is under a heavy load.
Video: Introduction to Sleep Apnea

For a complete list of videos, visit our video library