The piston rides up and down inside the cylinder on a connecting rod that attaches to the crankshaft, causing the crankshaft to turn. Each movement of the piston is called a stroke. Four strokes — ...

The film discusses various types of engines that utilize heat energy for operation. It explains steam engines, which are reciprocating external combustion engines, and compares them to internal ...

Wait! Don't say anything. Okay—they're gone. I didn't want those guys to hear what we were saying about them. Who? The people who flipped past this article without reading it, of course! You see, ...