The primary use of radar is for detecting and tracking objects, typically in the air, on land, or at sea. Radar (an acronym for Radio Detection and Ranging) operates by sending out radio waves that reflect off objects and return to the radar system. By measuring the time it takes for the waves to return, the system can determine the distance, speed, and direction of the detected objects. Radar technology is widely used in various applications, including aviation for air traffic control, weather forecasting to track storms and precipitation, maritime navigation, and military operations for surveillance and targeting.