National Science Environment Scientists made a wooden steak knife that's 3 times sharper than a steel blade 4:54pm October 20, 2021 Science Environment National Share URL copied to clipboard! Copyright 2021 NPR. To see more, visit https://www.npr.org. 300x250 Ad More All Things Considered National What the jury in the Sean Combs trial will be deliberating by Anastasia Tsioulcas National The latest in the deadly firefighter ambush in Idaho by Kirk Siegler 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate