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Travel Science: RustWhy do metals rust? You are always told to keep metal tools or objects dry and free from moisture, but what role does water play in the corrosion process?
When I stopped by to visit the Eiffel Tower in France I remembered the fact that the tower, like many other steel structures (like bridges) around the world, has to be repainted every so often so that they do not corrode and weaken. Simon Boman 10 Jul 2013
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