World's sharpest knife is made from wood?
October 22, 2021 | 2:40 pm CDT


Wooden knives that are three times sharper than steel ones could help cut down on energy usage and plastic cutlery waste, according to a report in NewScientist.

According to the report, Teng Li at the University of Maryland and his colleagues developed a hard wood material 23 times harder than raw wood. It can be carved to make knives three times sharper than standard steel knives. 

In another example, nails made from hardened wood were lighter and more sustainable than steel nails, but equally good at holding together three layers of wooden boards that were each 5 mm wide.

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Larry Adams | Editor

Larry Adams is a Chicago-based writer and editor who writes about how things get done. A former wire service and community newspaper reporter, Larry is an award-winning writer with more than three decades of experience. In addition to writing about woodworking, he has covered science, metrology, metalworking, industrial design, quality control, imaging, Swiss and micromanufacturing . He was previously a Tabbie Award winner for his coverage of nano-based coatings technology for the automotive industry. Larry volunteers for the historic preservation group, the Kalo Foundation/Ianelli Studios, and the science-based group, Chicago Council on Science and Technology (C2ST).