SONAR (Sonic Navigation and Ranging)

SONAR (Sound Navigation and Ranging) is a technique that uses sound waves to detect objects underwater. A sonar device emits sound pulses into the water; when these sounds hit an object, they bounce back as echoes. The system measures the time it takes for the echoes to return and calculates the distance to the object based on the speed of sound in water. Sonar helps in mapping seafloors, locating underwater objects or creatures, and navigation, especially in conditions where visibility is limited. It’s a vital tool for submarines, ships, and marine research.