Pythagorean
Science Advisor
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Captain Quasar said:Unreasonable Effectiveness... said:Heisenberg's rules presupposed that the classical equations of motion had solutions with certain periodicity properties; and the equations of motion of the two electrons of the helium atom, or of the even greater number of electrons of heavier atoms, simply do not have these properties, so that Heisenberg's rules cannot be applied to these cases. Nevertheless, the calculation of the lowest energy level of helium, as carried out a few months ago by Kinoshïta at Cornell and by Bazley at the Bureau of Standards, agrees with the experimental data within the accuracy of the observations, which is one part in ten million. Surely in this case we ‘got something out’ of the equations that we did not put in.”
The approximations that come into QM at this point make my head spin.
I remember feelng like I got hit with a five-car approximation train, BAM BAM BAM BAM BAM! one lecture very recently