Slicing an onion releases tear-inducing chemicals into the air, but the sharpness of the knife and the speed of the cut can affect how these droplets are expelled
Več na: https://www.newscientist.com/article/2480321-physicists-reveal-the-secret-to-chopping-onions-without-crying/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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