Can't explain shadows using Plato's theory! You find out all about it if you teach an clever but naive child. -----Original Message----- From: owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx [mailto:owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx]On Behalf Of Gregory Fraser Sent: 07 May 2004 14:18 To: List for Photo/Imaging Educators - Professionals - Students Subject: RE: red/blue 3-d imagery (light question, not photography) > -----Original Message----- > From: owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx > > Hmm. Well, I found Plato's "Postulates" for Optics on p. 195 > of Richard > Gregory's excellent tome "Mind in Science". Here are the first three: > > 1. The rays emitted by the eye travel in a straight line. > 2. The figure enclosed by visual rays is a cone which has its apex at > the eye and its base at the edge of the object looked at. > 3. Objects on which the visual rays fall, are seen. > > Nuff sed? > > Brian Chandler Are you saying these postulates are false? Vlad assured me that was sound optical theory. We based the Pixelhacker II on these principals! Where's my cattle prod and where's that son of a .... Greg Fraser http://users.imag.net/~lon2251/Gallery
