1 окт 1910 г. - Robert Milikan

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He discovered the charge of the electron by using the “falling-drop method”. He also determined that the charge is the same for all electrons. This shows us that all electrons are, and ever will be, negatively charged. Einstein and Planck were related to this event.
(Image: https://www.nobelprize.org/images/millikan-12934-content-portrait-mobile-tiny.jpg)

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