John Archibald Wheeler

Theoretical physicist. Responsible for reviving interest in general relativity in the US after World War II. Worked with Niels Bohr in explaining the principles behind nuclear fission. Co-developer of the Breit-Wheeler process. Popularized the term "black hole" and invented terms like "quantum foam," "neutron moderator," "wormhole," and "it from bit." Hypothesized the "one-electron universe." Referred to as the "hero of the black hole story" by Stephen Hawking.