The Dooms day Theory?

Question

So what exactly is a vortex?

Answer 1

The above answer is correct. Another kind of vortex is the little whirlpool that forms at the drain when you empty a bath tub or sink.

Answer 2

Excellent question. Vortices are closed circulations or centers of maximum vorticity. Examples in nature are tornadoes and hurricanes although generally a vortex is thought of as a circulation of smaller spatial scales than the hurricane. Another example from nature would be the dustdevil formed on a hot summer day that becomes visible when it draws dust from the ground into the vortex of air.