Animated Version of the Demonstration

sizeconstancyanim.gif (120701 bytes)In this animated version, the original picture appears, then the image of persion in the white t-shirt appears near the bottom and a copy is moved up to along side the original position of the person.   Watch the movement, you can see that the image never changes, but the apparent size will still change as it appears to move up the trail.












Copyright, 1999, John H. Krantz, all rights reserved.