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dec 20, 1897 - Thomson showed that cathode rays were composed of previously unknown negatively charged particles, which he calculated must have bodies much smaller than atoms
Description:
Cathode Ray Tube
Added to timeline:
Jamiyah Polite & Anyliah Middleton
By
jamiyah
13 Oct 2017
0
0
711
Date:
dec 20, 1897
Now
~ 128 years ago
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