a200939c   
   XPost: sci.electronics.design   
   From: ccon67@netscape.net   
      
   On Jan 16, 9:01 am, Martin Brown <|||newspam...@nezumi.demon.co.uk>   
   wrote:   
      
   > Having thought about it some more I think the easiest solution although   
   > not likely to survive in a school environment would be a linear array of   
   > RGB LEDs around the edge of a longitudinal disk and spin the whole lot   
   > to illuminate the sphere from the inside. Do it well and you might be   
   > able to dispense with the fragile outer projection skin.   
   >   
   > At one stroke you avoid all the optics and can get even illumination by   
   > software adjustable PWM means. A glorifed version of those novelty wands   
   > you wave about to show a message suspended in the air.   
   >   
   > --   
   > Regards,   
   > Martin Brown   
      
   Interesting ...   
      
   http://www.youtube.com/watch?v=cQhBm_EgB0w   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)