Trump overpowers Musk's attacks on mega tax bill with blizzard of orders ...

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 ...

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 ...