Engineering Physics Annotation << Back Physical and mechanical properties of the free electron. Part I Igolkin S.I. Basing a detailed analysis of the physical properties of the free electron here is analyzed its probable structure, size, characteristic frequencies of the internal motion and interaction with the environment. Geometric parameters, the trajectory, velocity components, as well as the stability conditions of the particle are aligned with the known experiments and phenomena that show the electron nature. Previously suggested hypothesis of vortex sources of positive and negative electrical charges is used and confirmed. The rotation of the toroidal vortexes initiates volume structural perturbation of the environmental ether in the form of spiral, pulsed, wave tensions. The field of these waves is fully reveals all observed characteristics of the electrostatic field. The scheme of electron-positron pair formation is supposed as a special variant of the vortex phase transition of liquid ether. To build the model is sufficient representations of continuum mechanics. Key words: electron structure, sizes, frequencies, charge, spin, vortex field, formation scheme, gamma rays, the physical vacuum. Contacts: E-mail: igolkins@gmail.com Pp. 03-15.