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    hkaskmehelpdesk's Avatar
    hkaskmehelpdesk Posts: 1, Reputation: 1
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    #1

    Nov 6, 2014, 12:42 AM
    Pendulum
    Does Pendulum has angel due to earth rotation?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Nov 6, 2014, 06:42 AM
    Are you referring to Foucault's Pendulum?
    See: Foucault pendulum - Wikipedia, the free encyclopedia
    InfoJunkie4Life's Avatar
    InfoJunkie4Life Posts: 1,409, Reputation: 81
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    #3

    Nov 6, 2014, 06:48 AM
    Yes! You are correct. As the pendulum swings the earth is rotating underneath it causing its trajectory to change. It is called Coriolis Force and there are a number of ways it can be observed including this one. Jean Foucault wrote about this in the mid 1800's, he led an experiment that involved hanging a large pendulum from the Pantheon and observing the change in direction as it swung throughout the day.
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