Watson-Watt's Radar

Watson-Watt's Radar is a system that detects objects, like airplanes, by emitting radio waves and analyzing the signals they bounce back. When a radio wave hits an object, some energy is reflected toward the radar receiver, allowing the system to determine the object's location, speed, and size. Developed in the 1930s, it provided a crucial early warning for aircraft, enhancing military and civilian safety. Essentially, it acts like an invisible eye, using radio signals to "see" distant objects and track their movements in real time.