MIT Researchers Uncover How Hair Strands Can Dull Even The Sharpest Of Blades

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MIT researchers were curious how soft human hair dull sharp razor blades so effectively (Credit: MIT.edu)

Human hair is about 50 times softer than a razor blade, which is made using heat-hardened stainless steel and often reinforced with diamond-like carbon. Yet, a few wisps of hair are powerful enough to dull a blade's sharpness within a few weeks of use. To understand how this impressive feat occurs, a team of researchers from the Massachusetts Institute of Technology (MIT) decided to take a closer look at what happens when the sharp edge of a blade slices through human hair.

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댓글 114개
  • lovebirds23
    lovebirds234년 이상
    that is so cool
    회신하다
  • momopo
    momopo4년 이상
    super smart😊
    회신하다
    • breathofthewild
      breathofthewild4년 이상
      Wow, that is very interesting and I never would have thought that hair can break steel.
      회신하다
      • againsttheelaws
        againsttheelaws4년 이상
        In the video, the strings of hair looked shiny like they had tinfoil on them
        회신하다
        • panda_payton321
          panda_payton3214년 이상
          I’m going to MIT😁
          회신하다
        • not-da-irs
          not-da-irs4년 이상
          they should make armor out of hair :)
          회신하다
        • robloxmaster
          robloxmaster4년 이상
          online school is BORING!!! like if you agree!
          회신하다
          • fosterkeefe
            fosterkeefe4년 이상
            I actually like it. I finish my work a whole lot faster! I get a ton more free time!
            회신하다
            • rand
              rand4년 이상
              me to its awsome
              회신하다
              • imsome1
                imsome14년 이상
                I kinda drift off because there is a computer right in front of me and I begin to read DOGOnews so I get distracted
                회신하다
            • strongunicorn
              strongunicorn4년 이상
              I know, and I love all of you comments but what I think might me crazy. I think my hair is stronger than that and I know that might sound weird but it is true.
              회신하다
              • cohhed
                cohhed4년 이상
                interesting I would have never thought that.
                회신하다
                • soup_can11
                  soup_can114년 이상
                  Wow, who knew that hair was strong enough to cut blades? That gif with the blade cutting the hair looks a little gross.
                  회신하다
                  • tgif
                    tgif4년 이상
                    I know right? It looks like someone pulling a worm out of the ground.
                    회신하다

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