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Pendulum clock

  1. Sep 9, 2010 #1
    I asked myself whether there are any possibilities to construct a pendulum clock, which period is independent of the acceleration of gravity, which may differ at different places, or the extension of the pendulum lenght, that is caused by different temperatures?
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  3. Sep 9, 2010 #2


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    And? What answer did you give yourself?
  4. Sep 9, 2010 #3
    well I have not a clue..that is why I want to ask you...
  5. Sep 9, 2010 #4


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    Well, the force of gravity and the length of the arm are pretty much the things that define the period of a pendulum, so if you are were hoping to build a clock without those things being constant, it pretty much couldn't use a pendulum.

    Since those are things that a pendulum has as its weaknesses, why would you use a pendulum at all, instead of using an alternate method that is not susceptible to the very things that you plan to vary?
  6. Sep 9, 2010 #5


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    Have you looked into the clocks designed in the mid to late 1700's by http://www.nmm.ac.uk/harrison" [Broken]?
    Last edited by a moderator: May 4, 2017
  7. Sep 10, 2010 #6
    but the point is: do you want to have an idea on how to overcome to acc. gravity or thermal change on the value square_root(g/L) or what?
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