A physicist solves an old thermodynamic puzzle and demonstrates directly from the second law that entropy disappears at absolute zero.

So if you’re long-only, you tend to lose most of your capital across a cycle or three. And now we’re in a kind of environment where it makes a lot of sense being net-zero or net-short at times.” ...

Mechanical engineers are responsible for maximizing the efficiency of everything from power plants to car engines, but their efficiency equations were never meant to be applied to human systems. DOGE, ...

This solar cycle still has the potential to cause more celestial spectacles before activity calms down. And scientists say that the coming solar cycles may be even more eventful.

Everyone’s menstrual cycle is different. This guide describes what’s normal, how to manage symptoms and optimize your health, and what abnormalities to watch out for.

Cycle syncing aligns a person's diet and exercise habits with their menstrual cycle. Learn what the research says and who it might benefit here.

Simple cycle gas turbines provide efficiency levels of around 35% to 40%. Combined cycle units boost efficiency to 60% and beyond. But another option is emerging that combines the attributes of ...

Some Principles of Steam EngineeringThis article was originally published with the title “What is the Carnot Cycle?” in SA Supplements Vol. 66 No. 1710supp (October 1908), p. 239 doi:10.1038 ...

In this paper he has “thrown to the winds” the usual academic teaching in regard to the efficiency of a Carnot cycle, and has put forward a claim that another cycle has a greater efficiency.

This paper provides the first systematic, cross-country analysis of “rate cycles” in 24 advanced economies over 1970-2024 in order to put today’s monetary policy challenges into context. By combining ...