We're not going to get into the whole "who made the first car" argument today. But there's not much doubt that the overall history of self-propelled vehicles goes back well beyond the Mercedes Patent ...

A Stirling engine is an external combustion engine that runs on the expansion and contraction of gas within a sealed system. In this video, we break down how it works, from heating and cooling cycles ...

Engine power is a product of its overall displacement, but two similarly-sized engines with different bore and stroke ...

The steam engine is an external combustion engine. Its development goes back as far as the first century, however, the development of the first piston steam engine didn’t occur until 1690. Invention ...

There are three fathers of invention when it comes to nearly every car on the road today: Otto, Diesel, and Atkinson. They all had one thing in common—a drive to improve the efficiency of the engines ...