"World's first ultrasonic chef's knife" vibrates for easier chopping

At the CES tech fair in Las Vegas, US manufacturer Seattle Ultrasonics is presenting its ultrasonic C-200 knife, which vibrates over 30,000 times per second to create cleaner, smoother cuts.

These high-frequency vibrations, which can't be seen, heard or felt, reduce friction and, according to Seattle Ultrasonics, allow the eight-inch knife to behave "sharper than it physically is"

Seattle Ultrasonics is presenting its C-200 knife at CES

Founder Scott Heimendinger spent six years creating the C-200 knife...