| ID | #1492330858 |
| Added | Sun, 16/04/2017 |
| Author | July N. |
| Sources | |
| Phenomena | |
| Status | Hypothesis
|
Initial data
Residents of Novosibirsk on Thursday, April 13, noticed in the sky above the city hung the black ring, it is reported in group "AST-54" "Vkontakte".
It is noted that many users felt photos and videos processed, calling them a hoax. Other residents of the city and even thought that the planet was visited by aliens, remembering the movie "the Arrival", and the ring is a trace from their ship.
On Fedoseyev's street people have noticed a strange phenomenon - the black ring from hydrocarbon soot.
Novosibirsk, April 13, 2017.
Published on vk.com/act54
Translated by «Yandex.Translator»
Hypotheses
Vortex ring
Toroidal vortex (also vortex ring) is a phenomenon in which the region of rotating fluid moving through the same or a different area of a fluid when the flow pattern takes the shape of a toroid (donut).
Investigation
Resume
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