On 6/8/2013 1:40 PM, Don Latham wrote:
Neat! The path shape can be calculated to be isochronous, if I remember
aright...
Don
Hi:
Here's a kit I just built that's a pendulum that's a metal ball powered
by a small solar cell.
Haven't done any measurements yet, but the period is about a second.
http://www.prc68.com/I/GeekStuff.html#Zendulum
--
Have Fun,
Brooke Clarke
A real "time-nut" would lock it to his GPS 1PPS output.
--- Graham
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