Posted by Piotr Oleskiewicz on February 6, 2014, 5:20 pm
So, I was puzzled by this for some time now - if we assume the simple free electron sea and fixed nuclei model (or even the chain and jumping electrons model), it seems like when you bring two pieces of metal together, they should immediately join! What effect (a surface effect?) stops it from happening?
Or maybe this is exactly what happens (http://en.wikipedia.org/wiki/Cold_welding)?
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