Scientists created 'smoke rings' of light
Potential application of using vortex ring for personalized ventilation - Wang - 2020 - Indoor Air - Wiley Online Library
Mass production of shaped particles through vortex ring freezing | Nature Communications
Vortex Ring Machine Gun - YouTube
Colour online) Flow visualization images of vortex ring at different... | Download Scientific Diagram
Vortex ring with swirl: A numerical study: Physics of Fluids: Vol 22, No 9
Formation of an orifice-generated vortex ring | Journal of Fluid Mechanics | Cambridge Core
Vortex Ring State: what is it, how to prevent it and how to get out of it • HeliSimmer.com
Vortex ring - Wikipedia
Cartoon of the velocity flow around a vortex ring moving in the z... | Download Scientific Diagram
Vortex Ring - an overview | ScienceDirect Topics
Vortex Cannon Belches Jumbo Smoke Rings « Science Experiments :: WonderHowTo
Quadcopter Vortex Ring State | Settling with Power. Unmanned… | Flickr
Two circular vortex rings propagate in air seeded by smoke - Flow Visualization
Vortex ring behavior provides the epigenetic blueprint for the human heart | Scientific Reports
File:Giant smoke ring.jpg - Wikimedia Commons
Vortex ring - Wikipedia
Vortex Ring Cannon, improved version - YouTube
Vortex ring state - Wikipedia
Vortex ring with swirl: A numerical study: Physics of Fluids: Vol 22, No 9
The Vortex Ring, Close Up, in Slow Motion. - YouTube
Background Reasearch - hsa2013Anisa33
Bad Astronomy | Blowing square smoke rings | SYFY WIRE | SYFY WIRE
Experimental observation of vortex rings in a bulk magnet | Nature Physics
Vortex Rings
The Science of Vortex Rings - YouTube
