A simple model illustrates the operating principles of an information engine, a mechanical device that mimics the behavior of Maxwell’s demon by converting heat into information plus work.
Injecting large volumes of low-viscosity water helps energy producers extract oil and gas from shales that tightly confine those fossil fuels. But the technique also confronts technical and environmental issues.
Leonardo da Vinci’s foundational work on hydrostatics combined traditional knowledge and innovative empiricism in an attempt to understand an object fraught with paradox: the water-filled container.
Recent advances in computational and spectroscopic tools offer new insights into the nature of thermal conduction at ever-finer length scales and ways to control it.
Teasing out signal from galactic noise is the biggest challenge in using diffuse neutral hydrogen to study the changing structure of the universe.