Heat engines convert heat into work—for example, moving a piston in a certain direction. For an engine to be 100% efficient, when the process is reversed—the piston returns to its original state—there ...

Engine oil is the lifeblood of your engine. It lubricates moving parts, reduces friction, carries away heat, and cleans ...

A study published in Physical Review Letters (PRL) details a "Gambling Carnot Engine" that researchers report can attain 100% efficiency while also improving power generation. The researchers present ...

Summer heat does not just make you sweat. It also puts your car's vital fluids to the test. Engine oil and transmission fluid ...

Metasurfaces make quantum dot films cooler where they emit more efficiently, turning light-controlled temperature gradients into self-powered electrical signals.

All vehicles become less efficient in cold weather. In a recent study, researchers in freezing Finland focused on whether engine block heaters could help increase efficiency in internal-combustion ...

Quantum heat engines and refrigerators are open quantum systems, whose dynamics can be well understood using a non-Hermitian formalism. A prominent feature of non-Hermiticity is the existence of ...