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jan 1, 1909 - Millikan's Oil Drop Experiment (1909)

Description:

This experiment that measured the mass of an electron was perfected by the physicist Robert Millikan. Free electrons in an experimental chamber attached themselves to a spray of oil droplets. The charge on the oil droplets was always a near multiple of 1.6 x 10^-19 C.

Added to timeline:

Atomic Theory Scientists

ByDorian Williams
7 Nov 2018

Date:

jan 1, 1909
Now
~ 115 years ago
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