Just a few months ago, I wrote about how Nissan was able to produce a road-going engine with a thermal efficiency—the amount of energy produced versus wasteful heat—of 42%, beating out the likes of ...

Conceptual illustration of the Stacked Converging Shocks (SCS) framework. Each successive shock stage compresses the target further in a self-similar manner, producing a geometrically ordered sequence ...

Researchers at the Chinese Academy of Sciences developed a thermoacoustic Stirling heat pump prototype that offers high thermal performance, a peak coefficient of performance of 1.68, and potential ...

Garage 54 calls it free horsepower. We call it glorious Lada carnage. A combustion engine makes power by compressing fuel and air in a cylinder, then igniting it. The tighter you compress the mixture, ...