Vortex Ring: A toroidal region of rotating fluid characterised by a closed-loop configuration of vorticity. Reynolds Number: A dimensionless parameter that quantifies the ratio of inertial to ...

Vortex rings are pretty cool, and electromagnetism even cooler. Now, a team of physicists have found a way to combine the two phenomena, creating the electromagnetic vortex cannon. In fluids ...

But the biggest vortex rings on Earth are not made by dolphins or humans. Volcanoes sometimes emit huge ring shaped clouds of steam and gas up to 200 metres in diameter.

Decent cooling, snazzy RGB lighting, and simple installation make the Antec Vortex 240 ARGB price extremely competitive. You can expect to pay a price in the region of $85 (£81) for the cooler ...

V ortex rings, a mysterious and fascinating natural phenomenon, display breathtaking structures and behaviors in both air and electromagnetic waves. Imagine an air cannon that can shoot vortex ...

Engineers at Ohio State University have now developed handheld tools that cleanly extinguish fires with 'ionic wind’ and vortex rings. Fighting fire usually involves water or foam, but they can ...

For thirty years, scientists have theorized that it should be possible to create electromagnetic “focused doughnuts” not topologically dissimilar from the vortex rings that form naturally in ...

Vortex rings are not the only unusual signs of activity recently spotted at Mount Etna. On July 20, a new vent opened up in the Bocca Nuova crater, Behncke wrote on Twitter.

The volcano, one of Europe’s most active, has been spewing volcanic vortex rings at a rapid pace. But that doesn’t mean a big explosion is on the way, one expert says.