Abstract :
Today´s carmakers boast of their new vehicles´ cocoonlike qualities, including the latest noise-reducing features and great shocks that smooth out those bumps on the road. Myriad warning alarms are designed to counteract the insular environment when there´s trouble, but Yale University engineers are looking for a more subtle approach to signaling: vibrating motors and movable cams that send signals straight from the seat back to your back.
