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jan 4, 1879 - Sir William Crookes' experiments with cathode-ray tubes confirmed the work of earlier scientists by demonstrating that cathode-rays have a negative charge

Added to timeline:

24 Oct 2017
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A Timeline of the Atomic HIstory
Dalton's atomic theory was the first attempt to describe all...

Date:

jan 4, 1879
Now
~ 140 years ago

Images:

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