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  ▼a  1158613400

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  ▼a  9780192548801
  ▼q  electronic book

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  ▼a  0192548808
  ▼q  electronic book

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  ▼a  9780191858574
  ▼q  electronic book

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  ▼a  0191858579
  ▼q  electronic book

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  ▼z  9780198816812

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  ▼a  2462568
  ▼b  (N$T)

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  ▼a  (OCoLC)1153757983
  ▼z  (OCoLC)1158613400

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  ▼a  EBLCP
  ▼b  eng
  ▼c  EBLCP
  ▼d  YDXIT
  ▼d  YDX
  ▼d  OCLCF
  ▼d  248023
  ▼d  N$T
  ▼e  rda

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  ▼a  e-uk-en

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  ▼a  MAIN

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  ▼a  QB107
  ▼b  .H37 2020

• 082

  ▼a  522/.5
  ▼2  23

• 245

  ▼a  Harrison decoded:
  ▼b  towards a perfect pendulum clock /
  ▼c  edited by Rory McEvoy and Jonathan Betts.

• 250

  ▼a  First edition.

• 260

  ▼a  Oxford ;
  ▼a  New York, NY:
  ▼b  Oxford University Press,
  ▼c  2020.

• 300

  ▼a  1 online resource.

• 336

  ▼a  text
  ▼b  txt
  ▼2  rdacontent

• 337

  ▼a  computer
  ▼b  c
  ▼2  rdamedia

• 338

  ▼a  online resource
  ▼b  cr
  ▼2  rdacarrier

• 500

  ▼a  Modification of the escapement force by the spring and circular cheeks

• 505

  ▼a  Cover -- Harrison Decoded: Towards A Perfect Pendulum Clock -- Copyright -- Director's Introduction -- Foreword -- Contents -- List of Contributors -- Plates -- Chapter 1: Introducing the Precision Pendulum Clock -- The pendulum as a time-measuring device -- Circular deviation -- Towards a perfect oscillator -- The deadbeat escapement -- Escapement error -- Weather and the pendulum -- To improve or not to improve -- References -- Chapter 2: The Origins of John Harrison's 'Pendulum-Clock' Technology -- References -- Chapter 3: Introducing Martin Burgess, Clockmaker -- References

• 505

  ▼a  Chapter 4: Rescuing Martin Burgess's Clock B -- References -- Chapter 5: Reflections on Making Clocks Harrison's Way -- Prerequisites for a Harrisonian precision pendulum clock -- The remontoire design -- The Harrison Pendulum -- The hill tests -- The design of the pendulums for Clocks A and B -- Air density compensation -- Temperature compensation -- Summary -- Reference -- Chapter 6: Completing Clock B -- Delivery and initial plans -- What could be expected from Clock B? -- Clock A -- Starting the work -- Construction of the electric rewind and work towards the finishing of Clock B

• 505

  ▼a  Test period -- Clock B at Greenwich -- Reference -- Chapter 7: Adjusting and Testing Clock B at the Royal Observatory, Greenwich -- Introduction -- Background -- Installation and the location of the clock -- The trials -- The first trial, 2012-2013 -- Harrison's 'barometric' (air density) compensation -- A simple explanation -- The practice of the hill test -- The second trial, 2014-2015 -- Guinness World Record -- Shorter when warm -- Air viscosity -- The end of the trial -- Appendix: Critical comments -- Clock B -- Mathematical analysis -- Clock B: what can be claimed? -- Was it needed?

• 505

  ▼a  Impossibly complex and expensive? -- References -- Chapter 8: Crunching the Numbers: Analysis of Clock B's Performance at Greenwich -- Introduction -- Results for 2012-2013 (110 days) -- Results for 2014-2015 (130 days) -- Measurement system -- 2012-2013 data (110 days) -- 2014-2015 data (130 days) -- Correlation and compensation -- High-resolution measurements -- Results, long term (476 days) -- Leap second -- Clock B suggestions -- Measurement suggestions -- Conclusion -- References -- Chapter 9: Decoding the Physical Theory of Harrison's Timekeepers -- Newtonian physics

• 505

  ▼a  Popularising/commercialising Newtonian physics -- Dominion -- Dynamic stability -- Acknowledgements -- References -- Chapter 10: Analysis of the Mechanisms for Compensation in Clock B -- Introduction -- Changes in air density and viscosity on the pendulum rate -- The indirect effect of the grasshopper escapement on the pendulum rate with changes in running arc -- The indirect effect of the suspension spring and circular cheeks on the pendulum rate with changes in running arc -- Modification of the pendulum circular error by the spring and circular cheeks

• 520

  ▼a  This book is an exposition of the lesser-known work of one of the giants of the 18th century longitude story, the maverick clockmaker John Harrison (1693-1776). Harrison's background, methodology, and thinking. For those with a practical interest, the book is an excellent starting point for anyone wishing to make a clock of this type.

• 588

  ▼a  Description based on online resource; title from digital title page (viewed on June 02, 2020).

• 590

  ▼a  OCLC control number change

• 600

  ▼a  Harrison, John,
  ▼d  1693-1776.
  ▼2  fast
  ▼0  (OCoLC)fst00153680

• 650

  ▼a  Chronometers
  ▼z  England
  ▼x  History.

• 650

  ▼a  Clock and watch making.
  ▼2  fast
  ▼0  (OCoLC)fst00864505

• 650

  ▼a  Pendulum.
  ▼2  fast
  ▼0  (OCoLC)fst01056856

• 655

  ▼a  Electronic books.

• 700

  ▼a  McEvoy, Rory,
  ▼e  editor.

• 700

  ▼a  Betts, Jonathan,
  ▼e  editor.

• 776

  ▼i  Print version:
  ▼a  McEvoy, Rory
  ▼t  Harrison Decoded : Towards a Perfect Pendulum Clock.
  ▼d  Oxford : Oxford University Press USA - OSO,c2020,
  ▼z  9780198816812

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  ▼b  00000140

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  ▼3  EBSCOhost
  ▼u  https://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=2462568

• 938

  ▼a  YBP Library Services
  ▼b  YANK
  ▼n  16724387

• 938

  ▼a  ProQuest Ebook Central
  ▼b  EBLB
  ▼n  EBL6187355

• 938

  ▼a  Oxford University Press USA
  ▼b  OUPR
  ▼n  EDZ0002217412

• 938

  ▼a  EBSCOhost
  ▼b  EBSC
  ▼n  2462568

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  ▼a  최영란

• 991

  ▼a  eBook

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  ▼a  92
  ▼b  N$T