  Different electron states in atom are proposed. The states are bound to the
electrostatic field of atomic nucleus cut off on its size. The states exist
solely during acceleration of the atom exceeding the certain large value. The
binding energy of these anomalous states is in the $10\,MeV$ range. In lead
atom the transition to the anomalous state is accompanied by $33.2\,MeV$ gamma
radiation. This is not nuclear energy. Observed high energy phenomena in lab
lightning, electric explosion in liquids, and mechanical stress in solids are
paradoxical since they are caused by low energy perturbations. However, these
observations are compatible with the electron transitions to the anomalous
states since their creation requires just a temporal atom acceleration but not
its large kinetic energy.
