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The world's
could soon be using wooden knives. This may seem
, but scientists have created a
knife that is three times
than stainless steel knives. Researcher Teng Li said wooden knives would add to the
of wooden tools
found in our kitchens. He said: "We have many wooden
that we use for a very long
, like a cutting board,
, or a rolling pin. Our knives can also be used many
."