Puzzle Description:

Sit back and cross your eyes until the two dots at the top align. It's weird how you can fool your brain into seeing 3D where it isn't.

#1: Joe (infrapinklizzard) on Jun 12, 2010 [SPOILER]

If you have trouble making the images align, try tilting your head slightly to the left or right and see how the dots move.

Also, make sure your cursor isn't over the picture!

really cool idea
i like 3d stuff

Thanks, bugaboo.
It's not so easy to make in such a limited resolution. One pixel to the left = forward and one to the right = backward.
More than that is too hard on the eyes.

Thanks for a WEIRD entry !!!

thx 4 entry Joe

congrats on your win, Joe .... enjoyed the 3-d

Thanks and thanks for the dishonorable mention, but I must point out that mine is not the first 3D puzzle here. gregg licht (lgreg) made puzzles 6345 & 6360 in 3D.

Note that in his you have to spread your eyes (as if you're looking past your monitor). This tends to make the picture look bigger than if you cross your eyes, but it is much harder to do.

your welcome for your honorable mention, Joe
please make more

Your brain isn't actually being fooled. It's seeing the proper image that's formed when your left and right eyes are looking at the same scene from slightly different angles. It's the way we see the world around us in 3D. The brain knows how to take those two angles and make a 3D image of it.
In this case, we're looking at a 2D flat picture, but when we overlap them slightly by going cross-eyed, the brain does what it's trained to do by seeing the overlap in 3D. The two pictures aren't quite identical so the 3D isn't as clean as it could be, but it's still pretty cool, even 13 years later.

Goto next topic

You must register and log in to be able to participate in this discussion.