Brief description of problem: two independently-suspended platforms of equal mass are subjected to an intervening EM impulse, driving them apart. Upon the platforms are set a pair of solenoids to provide the impulse, and additionally a pair of pivoting magnetic armatures on one platform only, which mate with the solenoids on the opposite platform when at rest. The solenoids are angled diagonally so that the impulse is distributed evenly between x and y plan axes. When the arms are locked in place, the impulse drives the two equal masses an equal distance and speed - they move symmetrically as expected, clearly demonstrating Newton's third law. However when the arms are allowed to pivot some set angular distance, thus absorbing a portion of the impulse before transfering it to their platform upon reaching full lock, the platform is subsequently propelled a greater distance than its opposite - despite the net mass of both platforms remaining equal. An asymmetric exchange of inertial energies has apparently been demonstrated - the total displacement of the platforms in both the arms-free and arms-locked cases is equal, and equal to the input energy. Yet the asymmetric distribution of that energy has apparently caused a net momentum, from nowhere... http://www.youtube.com/watch?v=hiMs7Aag1CI&feature=mfu_in_order&list=UL http://www.youtube.com/watch?v=EHy9EZA10Wc&feature=related Not sure if these are sims but also have some test rig vids; a rail test, pendulum test and apparently its also passed float tests (tho no video). It's patented as a ship propulsion system. Stiction is clearly an unsatisfactory explanation in this case, so anyone, please elucidate..??. NB. Should just clarify - the system can be configured to gain momentum, or just position, depending on how elastic the connection is between the two platforms - in these anims and the rail test, it gains position. In the float or pendulum tests it gains KE.