Scientists Figured Out Why Razors Go Blunt
You would not assume that there would be anything intense going on between the razor you point at your skin and the hair. Although, a group of scientists wondered what’s the deal with razorblades going more and more blunt with each use. The investigation yielded rather interesting insights.
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The findings showed that chips occurred the least when the blade was held perpendicular to the hair. When the hair had room to move around though, more faults showed up.
A more important factor was, as mentioned before, the microstructure of the blade. When the blade’s alloy was spread more homogeneously, fewer cracks showed up.
https://interestingengineering.com/scientists-figured-out-why-razors-go-blunt
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