Airport Reference Code. About Airport Reference Codes. The Airport Reference Code (ARC) is a coding system developed by the Federal Aviation Administration to relate airport design criteria to the operational and physical characteristics of the airplane types that will operate at a particular airport. (The ARC is part of design standards established in the FAA Advisory Circular 150/5300-13, Airport Design, June 2008.)
The United States dropped atomic bombs on the Japanese cities of Hiroshima and Nagasaki in August 1945, during the final stage of the Second World War.The two bombings, which killed at least 129,000 people, remain the only use of nuclear weapons for warfare in history.he discovery of nuclear fission by German chemists Otto Hahn and Fritz Strassmann in 1938, and its theoretical explanation by Lise Meitner and Otto Frisch, made the development of an atomic bomb a theoretical possibility.
The US has dropped atomic bombs in 1945 on two Japanese cities, Hiroshima and Nagasaki. 1 person found this useful. Edit. Share to: Eccles-Jordan Trigger Circuit. 73,446 Contributions. This circuit is used in almost every electronic digital computer ever built & was invented in 1918 (patent GB148582). The US dropped the first atomic bombs on two Japanese cities in 1946, on Hiroshima on August 6 and on Nagasaki on August 9. No other atomic bombs have been dropped on in â¦ habited cities, although several countries have exploded many other atomic bombs in tests.