Faster friction -- less wear

Typically, the faster the two surfaces slide past each other, the greater the wear. But at extremely high speeds, comparable to the muzzle velocity of a firearm, this can be reversed: Above a certain speed, the wear decreases again. This surprising and seemingly contradictory result has now been explained.

from Latest Science News -- ScienceDaily https://ift.tt/Hm1lU3M

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