This is loosely based on tyskland's idea [link]

If you were to have three revolving doors inset into each other, a small maze on the way into work would ensue.

By using 3 of the 2 door revolving doors, and setting each one to be set on a wider axis than the previous, they could rotate based on time and have a constantly moving appearance.

The outermost door could rotate once every 12 hours, the middle door every hour and the innermost door could complete one rotation every minute.

See pic for a (slightly) clearer representation.

Sure, if you got to work at exactly the same time everyday, it would be a little boring... but how many people get to work on the same second every day?
-- reap, Dec 17 2002

pic http://au.geocities.../hb/door_clock.html
a little clearer? [reap, Oct 04 2004, last modified Oct 05 2004]

based on: http://www.halfbake...ing_20Doors_20Clock
tyskland's idea [reap, Oct 04 2004, last modified Oct 05 2004]

Your pic link isn't.
-- bristolz, Dec 17 2002



random, halfbakery