Ernie Martt, Editor, Phone: 440-247-6712, Phone: 440-247-6712 <emartt@cyberdrive.net>

Bob Holmström, Associate Editor, Phone: 503-292-3685, <holmstro@europa.com>

Bill Givens, Sec. &: Publisher, 3850 Ashford Dr., Eugene, OR 97405 Phone (H): 541-465-9311 <Lbanks@ix.netcom.com>

Everett Jones, Treas., 11929 East Hill Drive, Chesterland OH 44026 Phone: 440-729-4811

A hearty welcome to Bob Holmström as an associate editor and also thanks for being willing to produce this issue.

An HSC meeting will be held at the NAWCC National at 4pm, Thurs., June 24, with member-contributed topics. The AHS meeting will be at 5 pm, Fri. June 25, Gerald Marsh speaking.

Rock the Boat comments have been relocated to the end of this issue. These are meant to be comments no longer than half a page on horological topics, including controversial ones, but not personal. A quick way to write a short article, convey an important idea or ask a question.

Page Contents

1 Index of this issue.

2-13 Pendulums Revisited by Alan Emmerson.

14-17 Using a GPS Receiver to measure precision pendulums by Bryan Mumford.

18-22 Solid One-Piece Suspension Springs by Robert Mathys

23-25 Did Riefler Read Eiffel? by Alan Heldman.

26 Comments on Chaos Theory by Alan Emmerson.

27 Philip Woodward's reply to Alan Heldman

28-29 A Discussion Paper on Electromagnetic Drive by Ted Wale

30 A Philosophical Treatise on HSN Issue 1999-1 by Paul Hopkins

31 More Querys About Q - a response by D A Bateman

32 The Water Pendulum comments by Philip Woodward

32 Rock the Boat - Can Experiments Add Some Useful Facts to the Q Debate by Bob Holmström

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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