The gun forms vortex rings by forcing air or some other gas at high velocity down the gun’s cylinder. The ring forms when the friction of the cylinder wall causes a thin layer of the gas to roll ...

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 ...

Vortex rings are also extremely stable even in a cross wind. Scientists believe the dynamics of the propagating ring cause it to turn into the cross wind and resist being blown away or broken up ...

Akagi’s team did computer simulations of the airflow surrounding a person wearing a popular design of face shield. The person is exposed to the sneeze of a person standing 1 m in front of them. The ...

The vortex ring state is an aerodynamic condition which typically emerges in vertical descent, when relative upward air velocity equals the downward induced main rotor flow ...

Vortex rings, similar to smoke rings, have been observed in pulsing light before. Now, scientists have figured out how to make them on purpose with lasers, mirrors and special lenses.