Attempting to Extract Power from Earth's Rotation: An Experimental Test

A recently proposed method for the extraction of electrical energy from a circuit that is static with respect to the surface of Earth is investigated experimentally. In this method an electrical circuit moves due to Earth's rotation in Earth's magnetic field, and thus is supposed to generate an electromotive force. Our experimental results demonstrate that the proposed method yields voltages more than 3 orders of magnitude smaller than the predicted signal. This discrepancy is explained, and constraints on alternative schemes are briefly considered