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n 1993, artist Ned Kahn, who has among his interactive creations a three meter high mini-tornado in the World Financial Center in New York, created “Cloud Rings”, which you can see at right. A strange fog cloud is expelled from the central hole of a drum. A quick look at it may cause an instant dejá vù. Kahn’s cloud ring is a stable toroidal vortex. They are better known as “smoke rings” created by smokers throughout history. Both in its discoidal, seemingly solid upper form, as in its more loose lower appearance, Kahn’s vortex is an exact reproduction of the UFO photographed on that cold morning in 1974. The only difference is the scale, which suggests that the danish UFO was created by a very big sort of “drum”. Ole Henningsen, of SUFOI (Scandinavian UFO Information), actually investigated this case, interviewing the main witness, and locating the exact place and direction in which the photo was taken. And he discovered that the photo almost captured the Houlkærvænget heating center, which is directly below the UFO-cloud photographed. The sight of these curious smoke clouds were not very uncommon when the boilers were being cleaned. The Viborg UFO photo is therefore explained, and has little to do with NATO installations or alien spaceships camouflaging themselves as clouds. This UFO didn’t turn into vapor. It already was.
Originally posted by jdub297
reply to post by mikesingh
Where do I get the Danish report? (the Brits' can be downloaded)
Was there a report from the photographer about movement, noise, et c.?
In the Viborg case it is believed that the origin of the ringed cloud cannot be attributed to an explosion. In situ inquiries by HENNINGSEN learned that the military in Karup were probably right when they assumed that the cloud had been the by-product of a steam release from one of city's three heating centres in the area (while the cloud itself consisted mainly of steam, the dark ring may have been formed by soot particles).
Originally posted by Pauligirl
may be a steam cloud.