National Association of Watch and Clock Collectors, Inc.
Horological Science Chapter #161
Horological Science Newsletter
Issue 2002-2 May 2002
Bob Holmström, Editor, 2934 NW 53rd Drive, Portland, OR 97210 Phone: 503-292-3685, <email@example.com>
Bill Givens, Sec. &: Publisher, 3850 Ashford Dr., Eugene, OR 97405 Phone (H): 541-465-9311 <Lbanks@ix.netcom.com>
Everett Jones, Treas., Phone: 440-729-4811
Ernie Martt, Founding Editor, Phone: 440-247-6712, Phone: 440-247-6712 <firstname.lastname@example.org>
2 - 6 Analysis of mechanical operation of dual pendulum clock JB2 by Ned Bigelow
7 - 9 Brief History of Two-Pendulum "Resonance" Clocks reprinted from Antiquorum auction catalog
"A Tribute to Precision and Complicated Timepieces"
10 - 13 Extensions to the Smith Method of Amplitude Measurement by Bob Holmström
14 - 19 List of articles from the Annales Française de Chronométrie
20 "Rock the boat" submissions by Dallas Cain & Carl Rozycki
20 Information on the Koenig/Niaudet "clock-fork" by Anthony Prasil
NAWCC National in Anaheim - The Horological Science chapter will meet on Friday night, July
5th following the meeting of the Antiquarian Horological Society. The topic will be current horological
projects by members. Members and guests are encouraged to share their projects with the group.
There are Rock the Boat items in this issue. These are meant to be comments no longer than half
a page on horological topics, including controversial ones, but not personal. This is a quick way to write
a short article, convey an important idea or ask a question.
The deadline for material for the next issue is July 15th.
Above: Drawing from Apians cosmographicus Liber of 1533, showing how a nocturnal is used to tell the
time at night from the Great Bear.
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