Re: Belt trick for spin 3/2

<frank_k_sheldon@xxxxxxxxxxx> a écrit dans le message de news:
1161802444.765256.247700@xxxxxxxxxxxxxxxxxxxxxxxxxxx

The question was whether there is something
analogous to the belt trick for spin 3/2.
Is there such a trick?

No, it's a conjuring trick. The fact that the two rotations are in the
inverse direction is concealed by an stealthy change of configuration, like
a conjuror would make a stealthy manipulation just at the time of a change
of motion. It is indeed impossible to have such a trick in a three
dimensional space with classical objects.

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The Surprise Guest

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