Luis Walter Alvarez

Born: 1911
Birthplace: San Francisco, Calif.

Radio distance and direction indicator—Alvarez was awarded the Nobel Prize for Physics in 1968. He helped design a ground-controlled radar system for aircraft landings and with his son developed the meteorite theory of dinosaur extinction. (1978)

Died: 1988
Andrew Alford The National Inventors Hall of FameEdwin Armstrong


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