Path: utzoo!utgpu!water!watmath!clyde!att!pacbell!ames!ncar!noao!nud!fishpond!fnf From: fnf@fishpond.UUCP (Fred Fish) Newsgroups: comp.graphics Subject: Re: A Question of Perspective (?) Message-ID: <108@fishpond.UUCP> Date: 26 Jun 88 05:05:38 GMT References: <350001@hpcvlx.HP.COM> <3293@ubc-cs.UUCP> Reply-To: fnf@fishpond.UUCP (Fred Fish) Organization: occasionally Lines: 21 In article <3293@ubc-cs.UUCP> majka@grads.cs.ubc.ca (Marc Majka) writes: >In <350001@hpcvlx.HP.COM> ben@hpcvlx.HP.COM (Benjamin Ellsworth) writes: >> A disc 3" in diameter at 10ft has the same perceived size as a >> disc of what diameter at 100ft? > >Can you solve the equation: > > 3 X > -- = --- > 10 100 Was this supposed to be a trick question? I perceive a 3" disk to have the same size, whether it is located 6" in front of my nose or across the room. :-) -Fred -- # Fred Fish, 1346 West 10th Place, Tempe, AZ 85281, USA # noao!nud!fishpond!fnf (602) 921-1113