Enrico Fermi

Enrico Fermi (Italian: Enrico Fermi; September 29, 1901 - November 28, 1954) was an Italian-American physicist and professor of physics at the University of Chicago. He has made outstanding contributions to quantum mechanics, nuclear physics, particle physics, and statistical mechanics. During the Manhattan Project, he led the creation of the world's first nuclear reactor (Chicago Reactor No. 1). He was also one of the designers and creators of the atomic bomb, and is known as the "Father of Atomic Energy." Fermi held several nuclear energy-related patents and won the Nobel Prize in Physics in 1938 for his research on induced radiation produced by neutron bombardment and his discovery of transuranic elements. He is one of the few physicists who can be called outstanding in both theoretical and experimental aspects as physics becomes increasingly specialized. Fermi made his first major theoretical contribution in the field of statistical mechanics. Physicist Wolfgang Pauli proposed the Pauli Exclusion Principle in 1925. Fermi analyzed ideal gas systems based on this principle, and the resulting statistical form is now commonly called Fermi-Dirac statistics. Today, particles that obey the exclusion principle are called "fermions." Later, Pauli analyzed beta decay. In order to conserve energy in this decay process, Pauli assumed that when electrons are produced, an electrically neutral particle is also produced. Such particles had not yet been observed. Fermi analyzed the properties of this particle, derived its theoretical model, and called it a "neutrino." The theoretical model he derived from his theoretical analysis of beta decay was later called the "Fermi interaction" by physicists. This theory was later developed into the weak interaction theory. The weak interaction is one of the four basic interactions. Fermi also conducted experimental studies of induced radiation induced by neutrons. He discovered that slow neutrons are easier to capture than fast neutrons, and derived the Fermi lifetime equation to describe this radiation process. After bombarding thorium and uranium nuclei with slow neutrons, he thought he had obtained new elements. Although he received the Nobel Prize in Physics for this discovery, these elements were later discovered to be merely products of nuclear fission. Fermi fled Italy in 1938 to avoid his wife, Laura, being affected by Italy's newly passed racial laws because of her Jewish origin. He immigrated to the United States and worked on the Manhattan Project during World War II. Fermi led his team to design and build Chicago Reactor 1. The reactor conducted a critical test on December 2, 1942, completing the first artificial