True or False: The picture above shows 4 concentric circles.

It’s amazing how these diagonal lines can canfound your brain. Is the right side of lever truly lower than the left?

Let’s see how flexible your brain is- Can you make the dancer spin both clockwise and counterclockwise?

[click on picture below to view animation]

Thomas Papathomas just let me know of this new optical illusion he made. Wasn’t initially going to put it up because of its politcal nature, but it’s too neat to pass over:

Professor of Biomedical Engineering at Rutgers University Thomas Papathomas let me know of his really cool mask/face illusion.

Notice the moving nose ring as well as the rolling eyes. The effect gets even crazier when the mask is turned on its side 1 minute 30 seconds into the video.

Thanks to krandolph for this cool optical illusion below. If you haven’t played Smartkit’s super high quality jigsaw puzzles yet, go try them now!

Is the length of the tabletop on the left any different than the width of the tabletop on the right?

In this optical illusion by Roger Shepard (”Turning the Tables”), the dimensions of the tabletops are amazingly the same!

Dr. Richard Gregory first observed this illusion’s effects at a cafe wall in Bristol, where the tiles were arranged in a chessboard-like pattern.

Wow, this optical illusion really messes with your brain.

Hard to believe, but the squares marked A and B are the same shade of gray.

For an explanation and proof, click

This neat little optical illusion comes courtesy of www.coolopticalillusions.com.

Probalby one of the cooler optical illusions I’ve seen in awhile.

Note that the picture below is not animated!

In this neat optical illusion, is the blue line in the middle a perfect square?

(Imagine looking at this thing while intoxicated?!?)