Last Call- Spirograph! Edition

By Robert Emslie Feb 28, 2013
5 thoughts on “Last Call- Spirograph! Edition”
    1. Nah, I would bet not. I haven't done any serious poking at the image looking for photoshop artifacts, but it passes the smell test for alright physics: the spiral is going in the right direction.

    2. Surely somewhere is non-shopped image then, no? My Google-fu fails me. I think it's real.

    3. I'm a designer and I don't think it's shopped. When something gets thrown off a spinning object, it goes in a straight line. However, the spinning object is not stationary in this case. Each grain of sand gets thrown off in a straight line that originates in a slightly different place – giving the illusion of a spiral. Where there are spokes, there is no sand escaping the wheel. Pretty cool.

    4. I think I've seen slo-mo video of it once, but I can't find it online.
      Less spectacular examples of the same effect don't prove it wasn't shopped, but they are really cool.
      <img src="http://upload.wikimedia.org/wikipedia/commons/thumb/4/4b/Dakar_2006_Alphand.jpg/1280px-Dakar_2006_Alphand.jpg&quot; width="600">
      <img src="http://inapcache.boston.com/universal/site_graphics/blogs/bigpicture/dakar2011_01_14/d41_26588339.jpg&quot; width="600">
      IMGs from Wikipedia, Boston.com's Big Picture (they do a great annual Dakar gallery)

Leave a Reply

Your email address will not be published. Required fields are marked *

The maximum upload file size: 64 MB. You can upload: image, audio, video. Links to YouTube, Facebook, Twitter and other services inserted in the comment text will be automatically embedded. Drop files here