Some computers are easy to spot. Artificial, human-built computers like those found in smartphones and laptops are abstract dynamic systems with observable computational elements like input, output, ...

Abstract: The rapid expansion of renewable energy sources, such as wind and solar power, has introduced substantial challenges to the stability of power systems due to their intermittent nature.

Engineers at UC Davis have built a remarkable device that creates power at night by tapping into something we rarely think about: the vast cold of outer space. Using a special type of Stirling engine, ...