NPR News: Scientists made a wooden steak knife that's 3 times sharper than a steel blade

Scientists made a wooden steak knife that's 3 times sharper than a steel blade
Researchers have hardened wood and fashioned a knife out of it. It's three times sharper than steel and can slice through steak, and could be a sustainable alternative.

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Làm đẹp Blog 247 October 21, 2021 at 03:08AM
Category Science