CES 2026 live: all the news, announcements, and innovations from the show floor and beyond
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D
You call that a knife?
This is an ultrasonic knife. Seattle Ultrasonics’ C-200 uses piezoelectric ceramic crystals to vibrate over 30,000 times a second, helping it cut as if it’s sharper than it really is. I was skeptical, but I sliced through a tomato with almost no resistance at all — it felt like the knife was falling through.
1/4The C-200 still needs sharpening, but less frequently than other knives — once every couple of years. Photo: Dominic Preston / The Verge
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