Instructions for "freeviewing" 3D images on the computer screen:
Get about a foot from your monitor screen and look into the middle of the two images. Cross your eyes, and keeping them crossed, slowly pull your face away from the screen, continuing to gaze into the middle area. At some point, if you get the knack of it (it's like riding a bicycle), a third, 3D image will "snap" into place between the two where you have been looking. This is not the same technique as you use for those 3D images in the funny papers, gazing off to a point behind the image. For this to work you have to cross your eyes and hold it while looking right into the middle between the two photos.

I really didn't create the 3D photo section with this in mind, but it occurred to me that it is actually a good analogy for some of the other information presented on this website. I know, from showing these double photographs to a few people, that it is difficult for some to see the stereoscopic image. In fact, it would be tempting for them to be cynical and say "it doesn't work", or "this is nonsense".

I guarantee you, though, that it does work, and that after practicing with them, I can see them in 3D very quickly, just as you'd see in the I-MAX 3D theatre with glasses (only much smaller!). I suspect that anyone who makes the effort to keep trying, eventually will be able to see it. But of course most people try for five seconds and give up.