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URL:  http://boards.fool.com/engineers-use-the-same-phenomenon-to-prevent-30407461.aspx

Subject:  Re: Copper and silver rings Date:  11/30/2012  4:02 PM
Author:  intercst Number:  46466 of 59084

Engineers use the same phenomenon to prevent offshore oil production platforms from rusting away. Aluminum anodes are bolted to the steel legs of the platform and they corrode instead of the steel platform.

http://chemwiki.ucdavis.edu/Analytical_Chemistry/Electrochem...

intercst
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