Description: The power spectral formula of the radiation of an electron moving in a rotating dielectric disc is derived. We suppose the index of refraction is constant during the rotation. This is in accord with the Fermi dielectric rotating disc for the determination of the light polarization gyration. While the well-known Cherenkov effect, transition effect, the Cherenkov-synchrotron effect due to the motion of particles in magnetic field are experimentally confirmed, the new phenomenon - the radiation due to a charge motion in rotating dielectric medium and the Cherenkov-synchrotron radiation due to the superluminal motion of particle in the rotating dielectric medium is still in the state of the preparation.