>>13870833the tr3b astra supposedly uses some type of mercury plasma that is spun up in a toroid to high rpms which causes it to "lose" mass and inertia.
but the ring has to be like the size of a football field so not too feasable for a backyard craftsman.
as for math. learn about maxwells equations for electromagnetic fields. and learn about fourier transforms and fourier series for different electical signals (square waves, triangle waves, etc).
my problem is that i lack funding to buy the equipment i need to start an actual electrical lab
i suspect you could get pretty close by parting out a tesla car for the batteries and high current motor drivers. swap out the motors for ??? and chello