sonar principles

Sonar, which stands for Sound Navigation and Ranging, uses sound waves to detect objects underwater. It works by emitting sound pulses into the water. When these pulses hit an object, they bounce back, creating echoes. By measuring the time it takes for the echoes to return, sonar systems can determine the distance to the object. This technology is widely used in submarines, fishing, and oceanographic research to locate fish, map the seafloor, or identify other vessels. Essentially, sonar is like an underwater sound game that helps us "see" in dark or murky waters using sound instead of light.