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Microscopic view of a knife dulling in real time against cardboard [credit: OUTDOORS55 on Youtube]


Not mine, credit to OUTDOORS55's latest video on Youtube. So cool seeing the edge chip and abrade away, even with a material as soft as cardboard



by Magikarp-3000

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1 Comment

  1. CO-VAX

    Cardboard isn’t “soft” because of a) the adhesive and b) impurities (i.e., non-cellulose).

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