Category:Electromagnetic devices

Revision as of 20:41, 15 November 2012 by Beichner (talk | contribs)

File:Electromagnetic Devices National Park Services Electromagnetic detection instrument.jpg
A 1997 photo of an electromagnetic detection instrument, designed to locate rebars in concrete for quality control inspections - Image by ,Marie Ennis, P.E, the National Park Service, and Preservapedia.

Media in category "Electromagnetic devices"

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