15 November 2011

"Crown flash"


Notice the unusual activity occurring in the clouds above an urban setting in Singapore.

Discover magazine describes the action -
Did you see it? If it helps, the picture here shows you where to look. Starting at 9 seconds in, that little wisp suddenly snaps into a new shape, as if someone had stopped the video, waited for the cloud to change, then started up the video again. But it’s clear that’s not what’s going on; the video is smooth with no transitions.
- and offers some explanation, as does the APOD site.  But the most extensive discussion and explanation I have found is at forgetomori.

You learn something every day.

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