
look in the middle of these 2 images and slowly cross your eyes so that a third duplicate of the image is in the middle. the two images on each side will become out of focus leaving a clear middle image. it may take some time but the effect is really cool as if you can almost touch it.
here are some more.





and for those that are having problems here is a more in depth explanation
2. Sit at your normal distance.
3. Slowly cross your eyes. You will see a double image, or four dots.
4. Continue to cross until the middle two images overlap.
5. Adjust focus on middle image, keeping the two images overlapped.
6. You should see the blue circle floating above the black circle.(in the middle of the black circle)







































