>I've made some changes to allow the use of old disk drive motors in the >propeller clock, check it out if you're interested: > >http://www.bobblick.com/bob/projects/mclock.html > >-bob Hi Bob, Fantastic idea, I wonder if any one with a helicopter would consider putting (ultra-high brigth) LEDs on the edges of the blade and flying over the city at night ?? Or even on the leading edge of a bi-plane - now that would be interesting calculating the on time against air velocity ? Incidentally your pictures of the Tandon motor etc are great - very clear and readable on Netscape 3.0, I'm considering getting a digital camera - what camera or scanner input did you use ? Rgds Mike Socrates once gave the advice to "by all means get married... If you get a good wife you will become happy, if you get a bad one you will become a philosopher." Become an Engineer and avoid making this problematic decision.