If you've ever wanted to send someone a secret message simply by touching their ear, Disney Research has come up with a way to do just that.
This new invention - called the Isihin-Denshin - takes the sounds that are spoken into a microphone and transforms it into a low current inaudible signal that is then sent back into the speaker's body. And this is where it gets really sci-fi - when the person who spoke into the microphone touches another person's ear that inaudible signal vibrates in the person's earlobe, recreating sound.