National Association of Watch and Clock Collectors, Inc.
Horological Science Chapter #161
Horological Science Newsletter
Issue 2003-2 April 2003
Bob Holmström, Editor, 2934 NW 53rd Drive, Portland, OR 97210 Phone: 503-292-3685, <firstname.lastname@example.org>
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 <email@example.com>
2 - 8 Display Periods from a Split-Path Epicyclic Train - part 1 by Graham White
9 -18 W5 Construction Details - Part 3 by Bob Holmstrom
19 Beat and Rate Relationships for Pendulum Clocks by Jerome Walker
20 Book Review: The Measurement of Time: Time, Frequency and the Atomic Clock By Claude Audoin
and Bernard Guinot by Gordon Uber
The 2004 NAWCC Seminar will be held in Portland, Oregon October 28th - 30th. The seminar will be co-hosted
by Pacific Northwest Chapter 31 & the Horological Science Chapter 161. The topic will be Science and
Horology. The proposed display will be a "hands-on" laboratory for horological measurements
which can be operated by seminar attendees. We are making good progress with speaker/topic selection but
we are still looking for suggestions for speaker topics, speakers, experiments for the "laboratory"
and volunteers to help with the seminar and seminar planning.
I will not be attending the National NAWCC Meeting in Charlotte this July. A room has been reserved for
the AHS meeting and a request made to keep the room open after for the Horological Science Chapter to
meet informally. If anyone has material they would like to present - let me know and I will make arrangements.
The deadline for material for the next issue is June 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.
CLOCKS and TIME / NAWCC
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