A droplet of a volatile liquid can move on a uniformly heated surface thanks to a nonuniform evaporation effect that drives an unstable fluid flow within the droplet.
Light–matter interactions in certain one-dimensional photonic materials can bring light nearly to a standstill, an effect that researchers show requires consideration of long-range interactions between the material’s components.
Researchers have used quantum computers to solve difficult physics problems. But claims of a quantum “advantage” must wait as ever-improving algorithms boost the performance of classical computers.