Vortex dynamics in cylindrical containers encapsulate a range of complex fluid behaviours driven by rotational motion. In these geometries, the interplay between centrifugal forces and viscous effects ...

It's as if the world has been turned upside-down, or at least its weather. You can blame the increasingly familiar polar vortex, which has brought a taste of the Arctic to places where winter often ...

Roughly twenty miles above Earth's surface, in a largely invisible layer of the atmosphere called the stratosphere, some of the most dramatic temperature changes on our planet unfold. Major sudden ...