eli5 How does razor blade dull on hairs when razor blades are made of steel and they are much higher on mohs scale?
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They did some experiments with shaving hairs in an electron microscope. Turns out that hairs actually make tiny chips in the blade. Cool article linked below.
https://wonderfulengineering.com/scientists-figure-out-how-soft-hair-can-dull-super-hard-razor-blades/
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