Question: Sam Bard Treiman (May 27, 1925 – November 30, 1999) was an American theoretical physicist who produced research in the fields of cosmic rays, quantum physics, plasma physics and gravity physics, he was a student of Enrico Fermi,  an Italian physicist and the creator of the world's first nuclear reactor, called what?
Sentence (from "Enrico Fermi"): He made significant contributions to the development of quantum theory, nuclear and particle physics, and statistical mechanics.
Relevant evidence: No