But a sine wave is nothing but a shape too, really... it doesn't imply a specific medium or source or anything like that.

Alien metal concert.

love the skulls!

I was thinking about this, and you know, it's not surprising... the bulk of the best things that Photoshop can do is just really hard math! All the filters are math in disguise.

Is that why it's so big? I have 4 and 5 and 5.5 and gave 'em up for elements, because I'm to dumb to use all the stuff in the full size versions. Hell, I've been using elements for a couple years and just discovered it has talk bubbles. Duh

APoD finally got around to it. probably influenced by the cellar

http://antwrp.gsfc.nasa.gov/apod/ap070403.html

The movie clip shows the inside and out side of the hex rotating at the same relative speed.

I think it's a polar jet stream. The earth's northern hemisphere jet stream often falls into stable 4-wave and 5-wave patterns lasting several weeks, 4-wave most common in summer and 5-wave in winter. My meteorology professor said that six and seven wave patterns happened but were very unstable. I guess a six wave pattern on Saturn is very stable.

Does the Earth's northern hemisphere jet stream also have skulls in it? Like around Iceland?

Yes, although some are being used.

great pics.

Fascinating. The sciencey stuff kind of lost me....I never could get my head around trig. I mean....doing some of the equations with a log book as per high school exercises I could just about manage, but I could never visualise what it was I was doing. I just followed the formula I'd been given. It was, and is, meaningless to me as applied to the real world.

Aheh.

I saw this Science article on /. that shows how to recreate this 6 wave pattern in the lab. I found this quote from the article quite telling about the fact that other people like @juggle5 have seen this stuff before: