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jan 1, 1897 - Cathode Ray Tube

Description:

In 1897, Thomson discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged. In addition, he also studied positively charged particles in neon gas.

Added to timeline:

Timeline Research Project

ByTristan B
13 Oct 2017
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Date:

jan 1, 1897
Now
~ 128 years ago
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