Strange smoke signals, it should be said, in the sky of the city of Vyshgorod, located immediately north of the capital Kiev. Following an explosion during the conflict between Ukrainians and Russians, a particular rare phenomenon was observed and immortalized by citizens looking out on their balconies: a ring Of smoke gray has formed over the affected area.
What is it about
“Multiple channels and sources are reporting a strange event in #Vyshgorod. A ring reportedly appeared after an explosion“, writes on her Twitter profile Zarina, who has received and published some holes of this particular phenomenon. Rings, or circles of smoke in the sky, occur only in conditions particular atmospheric conditions such as, for example, the absence of wind. To the Messengermilitary sources have stated that it can be, as in this case, the effect of a bombing that took place a short time before, in any case it is the consequence of an explosion.
The technical explanation
Creating smoke swirls generally requires an explosion through a structure circular which can come from the chimney of a building or from some specific appliance designed for the job. There are many videos circulating on the net, especially on YouTube, showing dozens of videos with these rings in the sky. Just type “smoke rings” and you can discover numerous testimonials. As the Nbcthe meteorologist of the Nbc Connecticut Ryan Hanrahan explained the rings as smoke swirls by saying they can be visible after volcanoes or a smokestack explosions and you’ve seen a few in Branford, United States, because a transformer is shaped like a cylinder. In net experts go wild: when an explosion occurs, “the expelled combustion gases have a very high momentum and when they meet the surrounding air, which has a much lower momentum, the diffusion occurs at a speed proportional to the momentum at which it flows“explains one user.”If the surrounding medium is thinner and less dense, diffusion occurs at an almost uniform rate in all directions. Thus forming a smoke ring“.
The precedents in Italy
In any case, it is not the first time that such a phenomenon has occurred: in 2014, a smoke ring was spotted in the skies of Trentino caused by some simulations of the firefighters during a training. How can we forget, then, the numerous rings formed byEtna when the vapor is dispersed in the sky especially in the moments of greatest activity of the volcano. In that case, the smoke rings are generated by the bursts of steam that come directly from within its craters.
#Kyiv. Multiple channels and sources report a strange occurrence in #vyshgorod Reportedly, a ring appeared after an explosion. [NEEDS verification and clarification but appears a lot.] pic.twitter.com/VPqqo3DO2G
– Zarina Zabrisky (@ZarinaZabrisky) March 25, 2022
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