George O. Smith,
The kingdom of the blind
(1947)
“ A body possessing negative energy would demand that energy be applied to it in order for it to acquire a state of energy equilibrium."The positron, according to Dirac, is a state of negative kinetic energy which is satisfied only when the energy of an electron is applied to it. In the process known as 'pair-production', where hard gamma strikes matter and releases an electron and a positron, it is actually a case of separating the electron from its positron, leaving in effect a 'hole' in the level of energy. ”
