Visual Illusion Videos

Cool Stuff:

And right now, I'm doing some stuff with motion aftereffects, so I've been looking for them all over. This one rocks (it's even better if you watch it in full screen mode):

More like this

I really do love illusions of all sorts, in large part because they fit nicely into my narrative about the fallibility of human thought, but illusions are also great as windows into the ordinary working of our brains.
If you look at a waterfall for about 30 seconds, and then shift your gaze to a nearby stationary object, such as a rock or a tree, that object will seem to drift slowly upwards.
Most of you have probably seen this before, but if you haven't, look at the flag for 30 seconds (if it doesn't work with 30, try 60), and then look at the white space underneath it.

I'm still seeing the damn Union Jack.

Really cool videos, especially the wobbling effect and the Union Jack. The first video, however, should have slowed down a bit at some parts.

Also, WTF about the Moebius strip? It is cool and all, but it is not an optical illusion nor an impossible object -it certainly can exist in three-dimensional reality. The Klein bottle would have been more appropriate.