3 ms·

The value of pi is apparent in nature. You can experimentally deduce it by measuring the magnetic permeability or coulomb force without knowing of a circle at a

The value of pi is apparent in nature. You can experimentally deduce it by measuring the magnetic permeability or coulomb force without knowing of a circle at all.

cft 10y ago
It will still reduce to the length of a circle, otherwise it's just a units convention.
amelius 10y ago
As far as we know, only at certain length scales and to a certain precision.