  In the Coulomb field of nucleus cut off on it size, besides usual atomic
states, there are additional ones. These anomalous states are deep (in the
range of $10\,MeV$) in the Dirac sea and can exist solely during a macroscopic
acceleration of the nucleus exceeding the certain level. This way a low energy
perturbation, providing the nucleus acceleration, can result in $\sim 10\,MeV$
gamma and neutron radiation due to electron transitions to those anomalous
levels. Experimentally observed gamma quanta and neutrons of that energy scale,
in the electric discharge in air, look as radiation from "nothing" if to forget
about the transitions to the anomalous states. The perspective of energy
generation, exceeding the input level, is discussed.
