Conversation so far:
what did Luis Walter Alvarez do with aviation?
The radar system for which Alvarez is best known and which has played a major role in aviation, particularly in the post war Berlin airlift, was Ground Controlled Approach (GCA).
did Luis Walter Alvarez fly as his career?
While working on GCA Alvarez became the first civilian to fly a low approach with his view outside the cockpit obstructed. He also flew many military aircraft as co-pilot

Question: what were some of his careers that involved flying?
Self-contained rewrite: what were some of Luis Walter Alvarez's careers that involved flying?