This remarkable Web site contains descriptions and animations of nineteen different kinds of engines. Engine types include internal combustion, steam, and sterling engines, and each page shows how the piston, crankshaft, and other components move together to generate power. The animations demonstrate the processes of intake, compression, and exhaust. Some of the featured engines have more detailed...

This resource on internal combustion engines comes from a mechanical engineering professor at Colorado State University. It is essentially an online textbook with three main chapters, which cover the topics of thermodynamics, heat transfer, and fluid mechanics involved in engine operation. Users should have an understanding of basic engine components, and a background in calculus would be helpful....

The first Web site related to lubrication is presented by SynLube.com and its relevant page is entitled Basics: What You Need to Know About Lubrication (1). Visitors can learn why lubrication is so important to mechanical devices, why oil needs to be changed in your car, what synthetic oils can do, and more. Although the site is for a manufacturer of synthetic oil, there is a good amount of...