My Own Right Time
An Exploration of Clockwork Design
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Product details:
- Publisher OUP Oxford
- Date of Publication 7 September 1995
- ISBN 9780198565222
- Binding Hardback
- No. of pages176 pages
- Size 253x195x17 mm
- Weight 546 g
- Language English
- Illustrations frontispiece, halftones, numerous line figures 0
Categories
Short description:
The pendulum is a constant source of interest to scientists. Great and well-known inventors such as Galileo, Huygens, and Kelvin all devised mechanisms to maintain its even oscillations. The solutions to the essential problem of maintaining a pendulum in motion without disturbing its natural rhythm are as diverse as the characters who devised them.
By tracing the story of his own contributions to this subject, the author illuminates the human ingenuity employed in pursuit of an impossible goal of perfection, and highlights a fascinating corner of technology now overtaken by electronics.
Long description:
The pendulum is a constant source of interest to scientists. Great and well-known inventors such as Galileo, Huygens, and Kelvin all devised mechanisms to maintain its even oscillations. Others such as John Harrison, Lord Grimthorpe, and William Shortt are known only in horological circles but contributed as much or more over three centuries. By writing a personal account of his own inventions and achievements in horology the author involves the reader in the history of precision time-keeping before the advent of atomic clocks and the quartz chip. Escapements, the mechanisms that drive pendulums, are a delight to the geometrical mind as well as a delicate and subtle challenge to the mechanical engineer. In their most refined form pendulum clocks not only keep astonishingly accurate time they are also sensitive enough to detect the ebb and flow of tides and even the ceaseless quivering of the Earth itself.
Philip Woodward's deep knowledge of and passion for time-keeping mechanisms is evident throughout this highly readable and fascinating account of precision horology.
`... a splendid account... clear and simple words...' Nature, 2 November 1995
Table of Contents:
Foreword
Author's preface
A horologist in the making
Theory and practice
Choosing an escapement
Echoes of Hope-Jones
Harrison and Congreve
Silence for a cellist
Going without gears
Disturbed harmonic motion
The phase circle
The Shortt free pendulum
Aiming too high
W5
Error correction
Noise modulation
The enigma of flicker noise
Wallman's conjecture
Clockwork with a difference
Bibliography
Glossary
Appendix
