The clear water inside the coloured ring is called the vortex core. You'll notice that vortex rings are quite stable until they slow down. At some critical speed, the core enlarges very suddenly ...

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 ...

Because of current limitations on technology, an important assumption of the search for extraterrestrial intelligence is that extraterrestrial intelligence and life will be interested in making ...

In short: Volcanic vortex rings have formed above Mount Etna in Italy. Volcanologist Ana Casas Ramos says the rings are made of condensed water which forms when hot vapour from the volcano hits ...

At first, Irvine and colleagues did this by placing vortex-generating ring jets at either end of a water tank. The water was seeded with bubbles to visualize the motions of the rings. Although ...

World’s first Dream Tunnel™ receives first place in Water Park Ride/Attraction Category Dream Tunnel wins a 2022 IAAPA Brass Ring The Vortex International team celebrated winning a 2022 IAAPA ...

These “smoke rings," which are called volcanic vortex rings by scientists, are made up of gas and water vapor shot from a newly formed crater, writes the Washington Post’s Leo Sands.

Though commonly called smoke rings, these loops are made mostly of water vapor. Researchers usually say “vapor rings” or “vortex rings” when describing the whorl of a ring’s gas. Credit ...

Gunnarson began using the CARL-Bot's single onboard accelerometer to measure how it was moving and being pushed around by vortex rings. He noticed that, every once in a while, the robot would get ...

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. By Elisabetta Povoledo ...

Each of the secondary vortex rings proceeds in the same manner as the primary one, and disintegrates as well. ... A DROP of liquid heavier than water, for example blue or red ink, ...