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Re: quantum of magnetic flux

For example, "a quantum" of luminous flux is "a ray".
This concept was part of physics vocabulary long
before Plank. It is still used in geometrical optics.
Too bad that rays can not be counted, like photons.

"Bernard G. Cleyet & Nancy Ann Seese" wrote:

This comes from total (well nearly) ignorance,
but I thought every thing was quantized.