Cutting onions and tomatoes is about to get a high-tech upgrade. Seattle Ultrasonics today unveiled the C-200 that they're calling the world's first ultrasonic chef's knife for home cooks. The $399 knife harnesses ultrasonic technology used in industrial settings, vibrating more than 40,000 times per second to "reduce friction and the force needed to make cuts…

Photo By CNET

Photo By CNET