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How do they make iron ship hulls rust resistant?

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The iron hulls of ships can be protected against rusting by attaching magnesium strips to the underside of the vessel. An electric current is generated, with the magnesium and iron acting as electrodes and seawater acting as the electrolyte.

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Similar questions: How do they prevent rust from forming on iron ship hulls? What can they do to iron ship hulls to keep them from rusting? What makes iron ship hulls rust resistant? What do they do to iron ship hulls to inhibit rusting? [ Hide these questions ]

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