On Thu, Apr 05, 2001 at 08:53:53AM -0500, John Foust wrote:
> Pendulums could be sync'd by starting their swing at the
> same time by a pulse on a control line (which would release
> a catch that had held the pendulum at top-swing), and they
> could be re-sync'd and their swing regenerated with a well-timed
> pulse to an electromagnet at the apogee of the swing-path.
That sounds pretty cool. Maybe someday it'd be fun to build a slave
grandfather clock, with the pendulum driven that way instead of by
weights. Has anything like that been built commercially?
I've got some old solenoid-driven slave clocks which I intend to drive
using something fairly modern (probably a Dallas Semiconductor TINI)
but these get one pulse per minute to advance the hands; I haven't seen
such clocks with pendulums.
--
_______ Shawn T. Rutledge / KB7PWD ecloud_at_bigfoot.com
(_ | |_) http://www.bigfoot.com/~ecloud kb7pwd_at_kb7pwd.ampr.org
__) | | \________________________________________________________________
Received on Thu Apr 05 2001 - 10:27:51 BST