It's all relative

[Mike_E]

Which shade is it?

[ame=http://www.youtube.com/watch?v=kdOQBPCOk5w]YouTube - Shady Optical Illusion 6[/ame]

 

[pbelarge]

Mike E
Thank you for sharing that. That is just too cool, and really shows what we see is relative to how, when and where we see it.

So much for the sky being blue:mrgreen: