Martin Weiss
Well-known member
- Joined
- Mar 21, 2008
- Messages
- 6,156
- Reaction score
- 0
- Points
- 36
- Age
- 56
- Location
- Switzerland/Norway/Germany
- Website
- weiss.no
Here's a cool illusion I hadn't seen before:
LinkThe spiral appears to have arms of green, blue, and pink/magenta - but what appears to be blue and what appears to be green are actually identical colors, confirmed by spectrometry.