Air rings blown by dolphins swimming underwater and rings of smoke emitted by jet engines are just two examples of vortex rings. These doughnut-shaped structures and their mesmerizing movement have ...

From building transparent potato guns to discussing why scientists are burning astronaut pee (seriously), YouTube channel Smarter Every Day has long been demonstrating the many ways science is ...

A DROP of liquid heavier than water, for example blue or red ink, submerged quietly into still water, encounters the resistance of the medium and becomes flatter in its form in the course of its ...

Intrigued by a grainy video from 1992, [Destin] from Smarter Every Day decided to jump in and fund his own research into the strange phenomenon of vortex ring collisions. This hack started with a ...

Turbulent ball: William Irvine, Takumi Matsuzawa and colleagues have used this apparatus to track turbulence with lasers and high-speed cameras. (Courtesy: Takumi Matsuzawa) Researchers in the US have ...

Observations of volcanic vortex rings have been reported at a number of volcanoes over the past several hundred years. The most recent rings emerging from Etna were first spotted last Wednesday.

Vortex loops could untie knotty physics problems Date: March 4, 2013 Source: University of Chicago Summary: Physicists have succeeding in creating a vortex knot -- a feat akin to tying a smoke ring ...

THROUGH the laws of vortex motion have been extensively examined by the ablest mathematicians, comparatively few experiments appear to have been made to study the nature of these motions in air and ...