When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation ...

Winter hasn't even officially started, but parts of the country are already bracing for what could feel like the deep freeze ...

The Polar vortex is causing temperatures to plummet dangerously across the Philadelphia region, and frostbite could become a ...

The northern U.S. is bracing for bone-chilling cold as a weakened polar vortex pushes Arctic air south. How cold will temperatures get in Minnesota?

Thanksgiving is less than a week away which means the fall season is ending. With it comes colder temperatures from an ...

Thanks to the polar vortex, the first half of December will bring multiple waves of Arctic air to the U.S. Here's what to ...

Step inside the strange world of a superfluid, a liquid that can flow endlessly without friction, defying the common-sense ...

The process of vortex ring generation and propagation has received substantial treatment in the literature. A common ring generation geometry consists of a piston moving through tube that exits into a ...