Robert F Christy was a fascinating physicist who was one of the key players in some of the most dramatic events of the 20th century.He was one of Oppenheimer's students, whom Oppenheimer hailed as "one of the best in the world." He was a co-creator of the world's first nuclear reactor and the first atom bombs, of which the most practical design was called the "Christy Gadget." Later, he became a leader in the effort to contain nuclear proliferation, leading up to the SALT talks, and headed a study on long-term health effects of radiation crucial for medical safety standards. He also made pione