An electron, travelling at high speed relative to an observer, does not radiate unless it undergoes some form of acceleration. Yet we can observe wave like properties under certain measurement conditions. If we accept that the electron has a magnetic moment, then there is a high probability that the electron gained some angular momentum on leaving the source. This angular momentum of the magnetic moment must exponentially dissipate its energy via radiation. Is this wave particle duality? Could this explain interference in the double slit experiment with very well spaced electrons?