Page:Die Translation deformierbarer Elektronen und der Flächensatz.djvu/1

 The Translation of Deformable Electrons and the Theorem of Conservation of Angular Momentum.

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alluded to the fact, that for a (rigid) non-spherical electron, uniform translation cannot take place into all directions in a force-free manner. For example, if a rigid, homogeneously charged electron having the shape of an ellipsoid of three axes, shall execute an uniform translation inclined to its major axes, then a torque stemming from external forces must compensate the torque exerted by the field of the moving electron upon the electron itself.

Certain reservations against the ordinary definition and calculation of the apparent mass of deformable electrons are causing me to present the following remark, on whose solution the more accurate formulation of those reservations is depending.

ian relativity-electrodynamics, in the form as it was formulated by, is quite generally seen as a closed system. Accordingly, it must give in a pure deductive manner the answer to the question, which we obtain by transferring 's problem from the rigid to the deformable electron: Provided that there exists a deformable electron, having any non-spherical and non