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In 1816, engineer Robert Stirling invented his proprietary Stirling engine, an automatic power source operated by ambient heat rather than direct fuel sources like an internal combustion engine.

Many of us have read about Stirling engines, engines which form mechanical heat pumps and derive motion from the expansion and contraction of a body of air. A very few readers may have built one ...

Homemade replicas of supercars are usually terrible ... Various publications are claiming to know what kind of engine is powering this beast. It's either an Audi V8 or a proper BMW V12.

A tiny Stirling engine is one of the coolest desk toys you can have. Since it requires nothing more than a difference in temperature to get going, you can just throw it on your laptop ...

The $29.99 all-metal desktop Stirling engine kit is one of the simplest. It can be assembled in 15 minutes and is recommended for ages 14 and up. Also for $29.99 is the Exploring Kid Steam Engine Kit.