A magnetohydrodynamic drive or MHD propulsor is a method for propelling seagoing vessels using only electric and magnetic fields with no moving parts, using magnetohydrodynamics. The working principle involves electrification of the propellant (gas or water) which can then be directed by a magnetic field, pushing the vehicle in the opposite direction. Although some working prototypes exist, MHD drives remain impractical.
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Famous quotes containing the word drive:
“Why should I let the toad work
Squat on my life?
Can’t I use my wit as a pitchfork
And drive the brute off?”
—Philip Larkin (1922–1986)