[time-nuts] Antique pendulum clocks
Steve Allen
sla at ucolick.org
Thu Nov 21 03:33:52 UTC 2019
On Wed 2019-11-20T16:51:00-0900 Bill Beam hath writ:
> Most people interested in this problem have been dead for about 200 years.
Au contraire. The BIH started operations early in the 1920s and those
volumes of BIH Bulletin Horaire are scanned online. The first 20
years relied largely on pendulum clocks, and there are lots of fun
diagrams of early electronics and radio tech too.
--
Steve Allen <sla at ucolick.org> WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 https://www.ucolick.org/~sla/ Hgt +250 m
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