I V Stalin
21-03-2006, 12:41
This is from something I was saying in the "Correcting Peoples' Spelling" thread.
Everyone loves optical illusions, so I'm inviting people to post their favourites.
Here's one of mine:
Chess board illusion (http://web.mit.edu/persci/people/adelson/images/checkershadow/checkershadow_illusion4full.jpg)
Which square is lighter, A or B?
Everyone loves optical illusions, so I'm inviting people to post their favourites.
Here's one of mine:
Chess board illusion (http://web.mit.edu/persci/people/adelson/images/checkershadow/checkershadow_illusion4full.jpg)
Which square is lighter, A or B?