LocoAko Posted October 25, 2011 Share Posted October 25, 2011 http://blogs.discovermagazine.com/badastronomy/2011/10/25/amazing-video-of-a-bizarre-twisting-dancing-cloud/ Link to comment Share on other sites More sharing options...
phil882 Posted October 25, 2011 Share Posted October 25, 2011 http://blogs.discove...-dancing-cloud/ That guys needs to get his lens fixed. Link to comment Share on other sites More sharing options...
LocoAko Posted October 25, 2011 Author Share Posted October 25, 2011 That guys needs to get his lens fixed. Do you think that is what it is? Link to comment Share on other sites More sharing options...
wxmx Posted October 25, 2011 Share Posted October 25, 2011 It's not the lens, the camera is not steady, and the dancing cloud moves independently of the camera movement. Link to comment Share on other sites More sharing options...
phil882 Posted October 25, 2011 Share Posted October 25, 2011 It's not the lens, the camera is not steady, and the dancing cloud moves independently of the camera movement. My hunch is that there is something in or on the lens, perhaps a small droplet, that is attenuating the light from the sky and causing the "dancing cloud" every time the droplet in the lens moves. This doesn't happen with every jerk of the camera unless it overcomes adhesive property of water being stuck to the lens. Link to comment Share on other sites More sharing options...
Mallow Posted October 25, 2011 Share Posted October 25, 2011 My hunch is that there is something in or on the lens, perhaps a small droplet, that is attenuating the light from the sky and causing the "dancing cloud" every time the droplet in the lens moves. This doesn't happen with every jerk of the camera unless it overcomes adhesive property of water being stuck to the lens. So you don't agree with the article--that it's ice crystals re-aligning with a changing electric field? Link to comment Share on other sites More sharing options...
eekuasepinniW Posted October 25, 2011 Share Posted October 25, 2011 it's not the lens. and the article contains a link to a page with more videos of the same thing http://amasci.com/amateur/sundog.html pretty damn neat. Link to comment Share on other sites More sharing options...
phil882 Posted October 25, 2011 Share Posted October 25, 2011 After seeing the other videos, I'm gonna have to take back my hypothesis... really strange, although I not sure why there hasn't been more high resolution footage of this phenomena. Link to comment Share on other sites More sharing options...
Mallow Posted October 25, 2011 Share Posted October 25, 2011 Also Jake, the cloud itself isn't "dancing" per se... it's just the optical properties of the cloud that are rapidly changing, not the shape of the cloud itself. Link to comment Share on other sites More sharing options...
turtlehurricane Posted October 25, 2011 Share Posted October 25, 2011 It is definitely a droplet on the lens in my opinion. Link to comment Share on other sites More sharing options...
LocoAko Posted October 26, 2011 Author Share Posted October 26, 2011 It is definitely a droplet on the lens in my opinion. Link to comment Share on other sites More sharing options...
The Dude Posted October 26, 2011 Share Posted October 26, 2011 It is definitely a droplet on the lens in my opinion. That solidifies it; the cloud was dancing. Link to comment Share on other sites More sharing options...
Jesse Ferrell - AccuWx Posted October 27, 2011 Share Posted October 27, 2011 I asked Les Cowley over at Atmospheric Optics if he agreed with the article's assessment. I very much trust his thoughts on all things Optics. He said via email: No. Pressure waves from lightning discharges producing changes in droplet condensation are more likely. Of course, this is assuming it was an actual phenomenon and not a lens problem (which the additional videos would seem to suggest). Link to comment Share on other sites More sharing options...
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