As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...

Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.

The polar vortex is set to push a blast of extreme cold into Mississippi over the weekend. Some parts of the state will see snow and ice as part of the winter storm, and Arctic air could affect the ...

Laboratory mixers commonly refer to vortex mixers which are used to mix small vials of liquid. An electrical motor causes a rubber cup containing a test tube or other vessel to oscillate, causing the ...