Does vortex have to be liquid or air etc….likethe tornado/hurricane etc./…?. Or can a vortex be made up of material for example you grab a paper and make it in a form of a cone you know, creating circles kind of…Is that a vortex?
and is this a vortex? http://www.flickr.com/photos/nespyxel/29…
http://www.flickr.com/photos/mabelinsantos/2671680147/in/set-72157601330682771/

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Filed under: Tornado

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