The
background is actually static. Move your eyes around the page and the
wheels will appear to rotate slightly... This 'anomalous motion' image
was created by Gianni A. Sarcone (©2002). This
isn't a ©-free image, if you use it don't forget to credit us...
A link back to our optical illusion site (www.archimedes-lab.org/index_optical.html)
would be also greatly appreciated!
How
to download the background gif image?
PC
Right click on the small image above and then save it to your local file
using the "Save Image As..." option.
MAC
Simply drag the small image to your desktop or click and hold, then save
it to your folder using the "Save As..." option.
More background
patterns here.

This work
is licensed under a Creative
Commons Attribution-NonCommercial-ShareAlike 2.5 License.
Archimedes'
Laboratory™
| [email protected]
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