The military for decades has used sonar for underwater communication.

• Position: Science scene - Brief article

The military for decades has used sonar for underwater communication. Now, researchers are developing a miniaturized version of the same technology to be applied inside the human body to treat diseases such as diabetes and heart failure in real-time. The advancement relies on sensors that use ultrasound--the same inaudible sound waves employed by the Navy for sonar and doctors for sonograms--to share information wirelessly between medical...