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I Why are the planets revolving around their own axis?

  1. Sep 12, 2017 #21
    Derivation of Earth angular momentum around Sun:
    Mass of Earth - 6*1024 kg
    Speed of Earth on orbit - 3*104 m/s
    Lever arm of the speed - 1,5*1011 m
    So angular momentum: 2,7*1040 J*s
    Planck constant: 1,05*10-34 J*s
    Thus the quantum number of Earth orbit - about 2,5*1074, as stated before.
     
  2. Sep 12, 2017 #22

    jbriggs444

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    This assumes that angular momentum is always quantized. If linear momentum and position are not quantized then there is no reason to expect that angular momentum is quantized. As @andrewkirk pointed out:

     
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