On the possible existence of longitudinal electric space-charge waves

An arrangement for an experimental test of the longitudinal waves in which the geometry of the generator and detector systems and the time development of the generator current are chosen such as to minimize recorded magnetic disturbances is outlined. The measurement of the space charge wave is suggested to take place during a time interval where the electric currents in the generator system are nearly constant and the corresponding magnetic field disturbances are minimized. Analysis of the choice of design parameters indicates that a test of the existence of the space charge wave is possible. The existence or nonexistence of this space charge wave could have a bearing on the existence or nonexistence of stationary electromagnetic equilibrium states in vacuo.