Ryle built first multi-element radio interferometer in 1946. Ryle produced key radio source catalogues including 3C leading to quasar discovery. Ryle shifted from Sun radio waves to advanced interferometry techniques. Ryle became Cambridge's first radio astronomy professor and Mullard Observatory director. Ryle served as Astronomer Royal 1972-1982. Ryle shared 1974 Nobel Physics with Hewish for astronomical research. Ryle later focused on anti-nuclear warnings and alternative energy promotion. Ryle criticized nuclear power and pushed wind power storage. Ryle warned science advances wisdom minimally risking catastrophe. Ryle worked on wartime radar then pure post-war science. Ryle argued against Hoyle's steady state theory. Ryle maintained secrecy on methods to outpace rivals. Ryle was quick-thinking hot-tempered charismatic leader. Ryle hands-on engineered telescopes boats wind tech. Ryle lifelong amateur radio operator callsign G3CY.