Experimental investigation of 5-D divergent currents as a gravity-electromagnetism coupling concept

The generation of thrust using corona discharges inside a sealed Faraday-cage box is investigated. A high-voltage power supply is connected to a box via strings which allow the box to move like a pendulum. The thrust is derived from its angular position using a laser displacement meter. A 5-dimensional relativistic Maxwell theory, which couples the electromagnetic and gravitational field and predicts the generation of thrust in such a configuration, is reviewed and discussed. Only oscillations during the corona discharge but no linear thrust as predicted was observed within the detectability of the instrumentation. A brief history of similar research which resulted in the claim of a force (Biefeld-Brown effect) is evaluated and discussed. The obtained results suggest that corona wind effects were misinterpreted as a connection between gravity and electromagnetism. If such an effect exists in the presented configuration, it must be below the detection threshold of the used instrumentation.