does this make you sick to your stomach

[uphwiz]

I dare you to stare at it for more than 1 minute
all of the spirals are not moving till you look at one of the others , look close

---------- Post added at 01:06 AM ---------- Previous post was at 01:01 AM ----------

one more there is no spiral here, just trace around one of the circles with your finger and you'll see no spiral.
.

 

[lizasaur]

i saw the whole article of these earlier. they drove me crazy!

 

[Lucanidae]

The first one isn't messing with my eyes/brain at all, which is unusual for me. :<
The second one, ohmygod.

 

[Zhilin]

Interesting illustrations. Actually, in the field of cognitive neuroscience, there are many such funny pics. These pics are generally designed to show human vision system's "filling-in" mechanism and other related mechanisms.

 

[dashman]

The first one never moved for me.

The second one was freaky.

 

[jafvortex93]

i have crappy eyes so staring at these things for too long just mess with them and end up giving me a headache lol.

 

[jimscott]

You are getting sleepy....

---------- Post added at 05:50 PM ---------- Previous post was at 05:47 PM ----------

Hey... Does "Slow children" mean that they can't move quickly or that they aren't terribly intelligent? And furthermore, have you ever wondered how long a sign like that (or Deaf Child) has been posted? It could have been there for 40 years and no longer lives there.

 

[uphwiz]

bump

 

[lance]

Woah! Trickery indeed.

Edit: Just realized this thread was from 2010... :/

 

[Iwest]

That second one's really driving me nuts hahaha

 

[swords]

What is this foul witchery!?

If you close one eye you can stop the illusions and spot the trick.

 

[Nepenthesis]

The first is the best I've ever seen, the second doesn't work. So it evens them out to be mediocre.