https://en.wikipedia.org/wiki/Magnetohydrodynamics https://en.wikipedia.org/wiki/Magnetohydrodynamics But yeah, it's a breakthrough... Oh look https://en.wiki

https://en.wikipedia.org/wiki/Magnetohydrodynamics https://en.wikipedia.org/wiki/Magnetohydrodynamics But yeah, it's a breakthrough... Oh look https://en.wikipedia.org/wiki/Magnetohydrodynamic_drive https://en.wikipedia.org/wiki/Magnetohydrodynamic_drive No one mentions as well that the optimum form factor for such a technology consists in two round plates facing each other (wink-wink).