6 years ago
2
Nothing to See Here, Just a Functional Knife Made of Fish
That was a fish, once. Tuna specifically. Katsuobushi—repeatedly smoked, fermented fish—holds the record as the hardest food on earth, bearing more in common by the end of its processing to petrified wood than to sealife.
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I've seen some very effective cutting utensils made from plastic, ceramic, glass and volcanic glass, but never living matter. Impressive.
I'd prefer volcanic glass myself,but yeah,that's sure different.