Re: rotating rings illusion

*To*: mathgroup at smc.vnet.net*Subject*: [mg80805] Re: rotating rings illusion*From*: dimitris <dimmechan at yahoo.com>*Date*: Sun, 2 Sep 2007 02:56:00 -0400 (EDT)*References*: <fbar32$qgu$1@smc.twtelecom.net>

On 1 , 07:50, "Imran Akbar" <im... at sulug.stanford.edu> wrote: > Hi, > i'm just starting to use mathematica... > > i'm trying to mathematically model the two rotating rings illusion as shown > in this video:http://video.google.com/videoplay?docid=-3761503348838584940&hl=en > > 1) how do you create a ring in mathematica? i found the circle command, > but that's only 2d. > 2) how can I orient each ring so that they're perpendicular to each other? > 3) how do I vary the # of rotations per minute in an animation? > > much obliged, > imran Not very helpful but I think you must first learn some of the basics of Mathematica before proceeding in projects like this animation. Dimitris