Are we sure that this scientist isn’t an alchemist? Inquiring minds would like to know!
Teng Li and his colleagues from the University of Mary managed to create a material that can be made into a sharp wood knife. The material, called hardened wood, is 23 times harder than raw wood. Once made into a knife, it becomes three times sharper than standard steel knives. According to the researchers, “the hardened wood knives can be washed, dried and resharpened if needed, so that an extended lifetime is expected.”
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image credit: Li et.al