Engineering Physics Annotation << Back THE SIZE OF THE ELECTRON WITH SPIN I.P. POPOV Determine the size of the electron made taking into account the energy of the spin motion, which is in good agreement with its quantum mechanical indicative estimate. The total energy of an electron in the absence of forward motion is the sum of its electrostatic energy and the spin energy of motion. Keywords: electron, spin, moment of inertia, angular frequency, the fi ne structure constant. Contacts: E-mail: ip.popow@yandex.ru Pp. 45-46.