>>40902676
>clearly not a golfer
https://en.wikipedia.org/wiki/Aharonov–Bohm_effect
>The Aharonov–Bohm effect is important conceptually because it bears on three issues apparent in the recasting of (Maxwell's) classical electromagnetic theory as a gauge theory, which before the advent of quantum mechanics could be argued to be a mathematical reformulation with no physical consequences. The Aharonov–Bohm thought experiments and their experimental realization imply that the issues were not just philosophical.
>The three issues are:
>whether potentials are "physical" or just a convenient tool for calculating force fields;
>whether action principles are fundamental;
>the principle of locality.
>Because of reasons like these, the Aharonov–Bohm effect was chosen by the New Scientist magazine as one of the "seven wonders of the quantum world".