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Lissajou's figure

  1. Apr 13, 2007 #1
    1. The problem statement, all variables and given/known data
    When 2 simple harmonic motions are applied to a particle at right angles to each other having time periods in the ratio 1:2, you get a figure of eight. When the phase difference is (pi)/4,3(pi)/4,... you don't get a perfect figure of eight.Can it be called a distorted eight or is there any other name? I would like to follow the nomenclature that is universally accepted.That is why I asking.Thanx in advance.
    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Apr 14, 2007 #2

    berkeman

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    Staff: Mentor

    It's a 3-D rotating figure 8, isn't it? We used to put 60Hz into the horizontal of an oscilloscope and rock music into the vertical channel. Great stuff. Especially on the loud, hard bass guitar notes.... Lots of rotating lissajou figures with fine treble detail fuzzing it all up....
     
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