IT WAS while hang-gliding that Jonathan Howes, a British aeronautical engineer, came up with an idea for a meteorologically powered engine to fly him between thermals, the columns of rising air which ...

Power boost: a quantum heat engine in synthetic diamond. (Courtesy: Jonas Becker) Physicists have in recent years built a number of microscopic heat engines to investigate how the laws of ...

Heat is animus. It was there at the birth of the universe, and its death will be the universe’s death. It is impossible to overstate its importance — both throughout human history and across modern ...