PM Orbo
Orbo started its life as a measurement anomaly during the course of the development of a permanent magnetic micro-wind turbine. The anomaly in question related to a simple rotary interaction between permanent magnetic components. Rotation in one direction lead to a loss of the system's kinetic energy; rotation in the opposite direction lead to a gain in the system's kinetic energy.
Tests detailing this effect may be found in the attached document as well as a detailed description of the test system and method used.
Asymmetry and Energy in Magnetic Systems [490k pdf]
Magnetic Torque Measurement System [1.6mb pdf]