Intereresting optical ilusion

Interesting optical illusion.
How the circles appear?

god! I suppose i became mad while watching this pic! completely don’t understand how it works!

It’s making my eyes and brain bleed. :o

It’s a test for roulette ball crossover patterns. :stuck_out_tongue:

If you look closely after a few seconds you will see the CN tower in the background.

OMG :o :o :o :o :o :o :o :o :o :o :o :o :o :o :o :o :o :o :o :o :o

[quote=“Davey-Jones, post:5, topic:688”]If you look closely after a few seconds you will see the CN tower in the background.
[/quote]

Nice sister, please give me the adress of her dog. :-*

E.H.

[quote=“Davey-Jones, post:5, topic:688”]If you look closely after a few seconds you will see the CN tower in the background.
[/quote] LOL that is funny

Did someone become addicted to this picture? :o

Just admirering the, umm, photography ;D

The Penrose stairs is a variation on the Penrose triangle. You could climb the stairs forever and never get any higher. That is only possible in two dimensions. This endless staicase can be found also in the paintings of M. C. Escher or also in the movie Inception by Christopher Nolan.