when was the first soviet atomic bomb tested
29 August 1949
title: Soviet atomic bomb project text: weapon project and the American Manhattan Project. The Soviet efforts also rounded up captured German scientists to join their program, and relied heavily on knowledge passed by spies to Soviet intelligence agencies. On 29 August 1949, the Soviet Union secretly conducted its first successful weapon test ("First Lightning", based on the American "Fat Man" design) at the Semipalatinsk Test Site in Kazakhstan. As early as 1910 in Russia, independent research was being conducted on radioactive elements by several Russian scientists. Despite the hardship faced by the Russian academy of sciences during the national revolution in 1917, followed by the violent title: Soviet atomic bomb project text: was performed with the torpedo on September 21, 1955. The first Soviet test of a "true" hydrogen bomb in the megaton range was conducted on November 22, 1955. It was dubbed "RDS-37" by the Soviets. It was of the multi-staged, radiation implosion thermonuclear design called "Sakharov's "Third Idea"" in the USSR and the Teller-Ulam design in the USA. Joe 1, Joe 4, and RDS-37 were all tested at the Semipalatinsk Test Site in Kazakhstan. The Tsar Bomba (Царь-бомба) was the largest, most powerful thermonuclear weapon ever detonated. It was a three-stage hydrogen bomb with a yield of about 50 megatons. title: RDS-1 text: RDS-1 The RDS-1 (), also known as Izdeliye 501 (device 501) and First Lightning (), was the nuclear bomb used in the Soviet Union's first nuclear weapon test. The United States assigned it the code-name Joe-1, in reference to Joseph Stalin. It was detonated on 29 August 1949 at 7:00 a.m., at Semipalatinsk, Kazakh SSR, after top-secret research and development as part of the Soviet atomic bomb project. The weapon was designed at the Kurchatov Institute — at the time officially known as "Laboratory № 2", but designated as the "office" or "base" in internal documents — starting in April title: Soviet atomic bomb project text: Yet, Soviet officials directed the scientists to work on a new scheme, and the entire process took less than two years, commencing around January 1954 and producing a successful test in November 1955. It also took just several months before the idea of radiation implosion was conceived, and there is no documented evidence claiming priority. It is also possible that Soviets were able to obtain a document lost by John Wheeler on a train in 1953, which reportedly contained key information about thermonuclear weapon design. Early ideas of the fusion bomb came from espionage and internal Soviet studies. Though the title: Soviet atomic bomb project text: Soviet atomic bomb project The Soviet atomic bomb project (Russian: Советский проект атомной бомбы, "Sovetskiy proyekt atomnoy bomby") was the classified research and development program that was authorized by Joseph Stalin in the Soviet Union to develop nuclear weapons during World War II. Although the Soviet scientific community discussed the possibility of an atomic bomb throughout the 1930s, going as far as making a concrete proposal to develop such a weapon in 1940, the full-scale program was initiated during World War II. Because of the conspicuous silence of the scientific publications on the subject of nuclear fission by German, American,