Mount Etna Volcano Blowing Perfect Smoke Rings

My current natural obsession is Mount Etna, a volcano in Sicily that blows perfect smoke rings like it’s frickin’ Gandalf with a pipe-full of Old Toby or something.

It is a relatively rare phenomenon caused by a constant release of vapours and gases. The gaseous mass ascends rapidly through the central part of the conduit, promoting the formation of rings by wrapping the gas upon itself in a vortex motion.

Puff on, Etna, puff on.

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