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skybobster
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On May 25, 2011, the journal Nature published an article stating that the electron was experimentally found to be extremely spherical. In Volume II, Chapter 5 of Feynman's Lectures on Physics, he states that the electric field of an electron has been experimentally determined to vary significantly from 1/r^2 as one approaches the center, where the field is singular. He gives no reference for this remark. Does anyone know of experimental results which have determined the electric field (or potential) as a function of the radial distance r for an electron (assuming spherical symmetry as a first approximation)?