It seems to me that both remember the parity of the number of revolutions.
As a mathematician I see no connection. Quaternions are mathematical structures forming a ring and dividing zero,i.e. there exist two non zero quaternion A and B such that A.B = 0 .
Dear R. C.
as a pure mathematician
I see a lot of connections
between pure mathematical structures
and objects of the external world.
Quaternions form a skew field
so they cannot have zero divisors.
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K
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