Abstract: An electromagnetic machine (1) comprises an electrical conductor vane (7) disposed between two magnetic arrays (3). The electrical conductor vane (7) comprises a plurality of electrically insulated conductors (35), wherein when the conductors (35) are disposed in magnetic fields produced by the magnetic arrays (3) and when current flows in the conductors (35), an electromagnetic force is induced to cause movement of the magnetic arrays (3) relative to the electrical conductor vane (7) and wherein the set of conductors (35) substantially fills the gap between the magnetic arrays (3) through which the magnetic fields pass.