"This process acts in tenths of a second, so the ring is emitted impulsively into the air domain. Due to its own momentum, thermal buoyancy and to the inertia of the rotating fluid, the vortex ...

The easy answer is a deep southward dip in the polar jet stream that typically rings the globe at higher ... Is this stream of cold air "a polar vortex?" Not in the truest sense of the word ...

Advertisement Advertisement As the National Weather Service explains, the polar vortex is an area of low pressure and cold air that exists over both of Earth’s poles 10 to 30 miles above the ...

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 ...

IN the course of some experiments preparatory to a lecture on vortex rings, I have introduced certain modifications which may be of interest to teachers and students of science.

The central part of the disc thus formed soon disappears, and consequently a ring form results. This is a very slowly whirling vortex ring. As it proceeds, the radius of the ring is augmented ...

The Vortex of Putrescence is a Sorcery introduced in Elden Ring: Shadow of the Erdtree. Sorcery used by the Putrescent Knight. Launches a whirl of putrescent jets that bathe the surroundings of ...

Last autumn, AccuWeather highlighted the transition from winter to spring as the period when the polar vortex could pay a visit to the U.S. With plenty of cold air in place, the colder pattern ...