John Archibald Wheeler, Albert Einstein, Hideki Yukawa, Einstein, Yukawa, and Wheeler are conversing together at Princeton, 1954. (Photo by JHU Sheridan Libraries/Gado/Getty Images).
John Archibald Wheeler, Albert Einstein, Hideki Yukawa, Einstein, Yukawa, and Wheeler are conversing together at Princeton, 1954. (Photo by JHU Sheridan Libraries/Gado/Getty Images).