A viral video appears to show a rare supercooling event, where water cooled below 0°C suddenly freezes when disturbed. Experts explain that under very calm, freezing conditions, a small ripple can trigger rapid ice formation across the surface. #Viral #TimesNow | TIMES NOW

A neat phenomenon called supercooling, water that drops below freezing but stays liquid until the shock of a bump, that allows the molecules to form ice crystals the next thing you see is ice spread throughout the cold water. I call this my truck water, and I tell you it’s some of the best water to drink. | Scioto Post

In this new Physical Review Fluids letter, Chen et al. investigate how vertical-supercooling influences interfacial instability in liquid films, uncovering a direct relation between the onset timescale of hydrodynamic instability, and the process of vertical solidification. Learn more: https://go.aps.org/3W5NSRr | American Physical Society