PHOENIX: Smart socks can alert caretakers. A 15-year-old New Yorker named Kenneth Shinozuka created a light-weight sensor at the heel of his grandfather’s sock to alert his aunt when he got out of bed. When the user leaves a particular spot, it alerts the smartphone app connected via Bluetooth. Shinozuka’s project was awarded the $50K Scientific American Science in Action Award last August. It is now in beta testing at skilled nursing homes and there’s strong potential it will do well since users won’t have to wear a smartwatch to bed…