Quote: the coefficient of friction is an artifact; two pieces of pure copper will stick together because the atoms get "confused", and a glass tumbler will scratch a wetted glass plate

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If we try to get absolutely pure copper, … and take every conceivable precaution, we still do … [the coefficient of friction] … the two pieces of copper stick together! … The reason … is that when the atoms in contact are … in different pieces of copper. … When we consider that it is forces between … impossible to get the right coefficient of friction … with a flat glass plate and a glass … [that is wetted].   Google-1   Google-2

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Topic: physics (48 items)