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sep 30, 1897 - J.J Thomson

Description:

Used a CRT to experimentally determine the charge to mass ratio (e/m) of an electron =1.759 x 10 8 coulombs/gram. Hear Thompson talk about the size of an atom. Examine Thompson's 3 experiments to verify atoms had parts.

Added to timeline:

Date:

sep 30, 1897
Now
~ 128 years ago