• A_A@lemmy.world
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    2 months ago

    Hi lad,
    i was not certain so i double checked :
    https://en.m.wikipedia.org/wiki/Isotropy
    Physics - - Electromagnetics :

    An isotropic medium is one such that the permittivity, ε, and permeability, μ, of the medium are uniform in all directions of the medium, the simplest instance being free space.

    … if you read this like i do, they do not care to diferentiate “round trip” and “one way” … and my vocabulary is not good enough to find a word that would fit.