SkinTrack (IMAGE) Carnegie Mellon University Caption Carnegie Mellon University's SkinTrack enables users to turn their skin into a touchpad for controlling smartwatches. User wears only a signal-emitting ring, which propagates electromagnetic waves in the skin that can be localized with sensors worn on the wrist. Credit Future Interfaces Group, Carnegie Mellon University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.