Leo Szilard was a Hungarian-American physicist who contributed significantly to the development of nuclear physics. He worked on the Manhattan Project, which was responsible for the creation of the atomic bomb. He was involved in the discovery of nuclear fission and is known for his contributions to the development of the first nuclear reactor. Some synonyms for the name Leo Szilard could be a physicist, nuclear scientist, nuclear physicist, Manhattan Project Scientist, nuclear reactor inventor, atomic bomb developer, and one of the fathers of the atomic bomb. His contributions to nuclear science are still recognized today.