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What ridiculous history fact is your favorite?
(lemmy.world)
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this post was submitted on 24 Jun 2024
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So, when Ben Franklin named them, it was in terms of something like "excess of electricity". A positive excess of charge, like in the glass he used to define the term, is actually a deficit (negative excess) of electrons, which are the real fluid.
Later on Crooks (I think?) figured out that if he cleared all the air out of a tube with mercury, he could force electrons out of the metal into open space, at the negative cathode end, and at that point they realised it was backwards.