A machine comprises a rotor, a stator, main bearings, and safety bearings for supporting the rotor in a situation where the main bearings are non-operating. The method comprises depositing cobalt nitrate on a support and then subjecting the support to a two-step decomposition protocol. Two or more opposing electromagnets are independently activated out of sync to affect a travel path of the magnetic particles to form a turbulence within the fluid to provide an effective mixing of the fluid. A plurality of fixed electrodes are interleaved with the moving electrodes.