Nov. 22, 2010: Mt Etna smoke ring

[jumpjack]

Originally Posted by wolf

Does anybody know where to find HD footage of volcano rings (i.e. 720 or 1080 lines)? Some years ago I saw "live" some rings, and it's amazing to see how they're able to "survive" thanks to the rotation of the steam, which is not clearly visibile in low res videos.

note: actually I can't see this video right now from office, but I guess it's one of the low-res ones I already know.