Scientist, engineer, physicist. His role in the development of the proximity fuze in World War II. Education and technical training; employment with the Office of Scientific Research and Development, 1942; technical aspects of developing the proximity fuze; practical applications of the proximity fuze in the Atlantic, Pacific, and Mediterranean Theaters; comments about the roles of Franklin D. Roosevelt, Harry Hopkins, and Vannevar Bush.

His experiences while aboard the destroyer USS Phelps during the Japanese attack at Pearl Harbor on December 7, 1941; his subsequent experiences aboard the Phelps in the Pacific and Atlantic Theaters during World War II.