This is an interesting diptych:

Tags: cool, nature, photo, spirals
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June 9th, 2008 at 1:16 pm
that is cool
June 10th, 2008 at 4:40 pm
diptych? new term for me, I had to look up that word. thanks.
Both the above are examples of differential rotation. Layers of our sun also rotate differentially.
But it is really quite complicated on how this works on either scale (galaxy or a large storm system on our tiny planet).
http://www.sciam.com/article.cfm?id=what-process-creates-and
June 10th, 2008 at 9:24 pm
My wife’s been growin’ these. Blow’s my freakin mind:
June 10th, 2008 at 9:24 pm
Oops: http://farm1.static.flickr.com/91/271662746_735bc5c077.jpg?v=0