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Why does current flow the opposite way from the electrons?
mathstodon.xyz
Although I suppose we essentially did that when naming the quarks.
When there is a symmetry, there are choices, all the time in math, and sometime in physics too.
Also I don't like calling electrons negative, they are not. Maybe you can say that their charge is -1, when you model charge with the additive structure of real numbers / integers, and you choose the protons charge to correspond to 1. Modeling charge with the additive structure of real numbers / integers is very reasonable. (You could use red and blue numbers, but that's not a widely used structure.)
So you shouldn't say "electron is negative". That's weird, confusing, misleading, and trolling.
Could be worse. They could have chosen any term implying opposite. We could have had left and right handed charges. Although I suppose we essentially did that when naming the quarks.
> that makes electrons negative, and apparently nobody knows why When there is a symmetry, there are choices, all the time in math, and sometime in physics too. Also I don't like calling electrons negative, they are not. Maybe you can say that their charge is -1, when you model charge with the additive structure of real numbers / integers, and you choose the protons charge to correspond to 1. Modeling charge with the…
I find this structure to model charge better. If not for else, at least it prevents you to ask silly questions about charge.