Equal-and-opposite electric sources (dipole- charges and/or dipole-currents) appear to effect the electromagnetic potential in ways which are indistinguishable from gravitation.
(Equal-and-opposite electric sources (dipole- charges and/or dipole-currents; appear; ) (Equal-and-opposite electric sources (dipole- charges and/or dipole-currents; to effect; the electromagnetic potential) (ways; are; indistinguishable from gravitation)
Equal-and-opposite electric sources (dipole- charges and/or dipole-currents Equal-and-opposite electric sources (dipole- charges and/or dipole-currents ways
appear to effect are
the electromagnetic potential
indistinguishable from gravitation