>It is similar to the hype that is used on 3D movies. What is really >happening is that they allow you to perceive spatial alignment of the >objects.
Without glasses you get 2-D: left-right and up-down. With glasses you may get 3-D: left-right, up-down, and forward-backward. Why do 3-D glasses not work for some people? Probably some degree of color blindness to the colors used to split the image. Have you tried 3-D goggles? They do not depend on color filters. They feed a different picture into each eye (just like headphones do for ears). Why can eyes do 3-D and ears only 2-D? Interesting question. Probably because ears do not swivel in their sockets like eyes do. Yet one more advantage the Martians have over us. ************************************************************************* ** List info, subscription management, list rules, archives, privacy ** ** policy, calmness, a member map, and more at http://www.cguys.org/ ** *************************************************************************
