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1
Intro
2
New Members & Lapel Pins
3
Henry B. Fried Scholarship
4
Traveling Education
5
Continuous Vs. Oscillatory Processes
6
Astronomical Phenomena: The Earliest Timekeepers
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An Early Water Clock
8
The enemies of precision
9
Thermal expansion
10
Friction due to air resistance
11
Minimive interference of the escapement
12
Is the verge and foliot capable of precision timekeeping?
13
John Harrison's H4: The Ultimate Verge Watch
14
The cylinder escapement: an improvement on the
15
Shape Of The Balance Spring
16
The modern mechanical watch
17
Hundreds of escapements were invented in the last 500 years.
18
What we didn't talk about
Description:
Explore the fascinating world of precision timekeeping in this comprehensive lecture by Jack Forster, Editor-in-Chief of HODINKEE. Delve into the historical evolution of timekeeping devices, from ancient astronomical phenomena to modern mechanical watches. Examine the challenges faced in achieving accurate timekeeping, including thermal expansion and air resistance. Discover the significance of various escapement mechanisms, with a focus on John Harrison's groundbreaking H4 watch. Learn about the continuous improvements in balance spring design and the multitude of escapements invented over the past five centuries. Gain insights into the Horological Society of New York's initiatives, including the Henry B. Fried Scholarship and Traveling Education programs.

The Essentials of Precision Timekeeping

Horological Society of New York
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