Retrieving "Ocean Water" from the archives

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1. Magneto Hydrodynamic Propulsion System

   Linked via "ocean water"

   Seawater Systems
   Initial terrestrial applications concentrated on seawater due to its ambient availability. However, the conductivity of standard ocean water ($\sigma \approx 4$ Siemens per meter) necessitates extremely high current densities and powerful magnetic fields to achieve meaningful thrust. A secondary complication in seawater MHPS is the phenome…