In this device brownian motion causes magnets to vibrate, but these magnets slow down due to eddy currents in the metal. If the heat is insulated in the metal from transferring back into the water, then this would violate the second law of thermodynamics since the eddy drag effect would cause the water to cool since the magnets slow down over time. Falsification: do the eddy currents cause their own microscopic magnetic field, and therefore the heat just transfers back into magnet vibrations? This needs to be tested by a nano lab. If any drag does occur and heat is separated without a cold sink, the second law would be falsified.