They built their own based on information acquired through espionage from people on the manhattan project or connected to them such as Klaus Fuchs, Ted Hall, and the Rosenbergs among others.
There has been no evidence presented at all to prove that Oppenheimer supplied the Soviet Union with information about the atomic bomb.
There where people in the United States the told them information the names were
Julius and Ethel Rosenbergthey were American Communist.
Through the use of espionage.
The Soviet Union
When the Soviet Union exploded an atomic bomb, the US response was to increase its own arsenal and its own testing of nuclear weapons.
the atumic bomb
They developed the H-bomb, a bomb more powerful than the atomic bomb that the Americans dropped on Japan, and was stronger than the one that the Soviet Union detonated. The U.S. just wanted to be stronger than the Soviet Union.
The Soviet Union successfully tested its first atomic bomb in 1949.
The Soviet Union tested their first atomic bomb in 1949.
The Rosenbergs were involved in the Manhattan Project which designed and made the first atomic bomb. They spied for the Soviet Union and passed the information to the Soviet Union on how to make an atomic bomb. They were caught and were executed for spying. With the breakup of the Soviet Union, the great value of their spying to the Soviet Atomic Bomb program was revealed.
atomic bomb or the hydrogen bomb
The Soviet Union
Soviet Union
The Soviet Union
The Soviet Union
The Soviet Union
When the Soviet Union exploded an atomic bomb, the US response was to increase its own arsenal and its own testing of nuclear weapons.
the united states had the atomic bomb. The Soviet Union had the world's most powerful army.
the atumic bomb
They developed the H-bomb, a bomb more powerful than the atomic bomb that the Americans dropped on Japan, and was stronger than the one that the Soviet Union detonated. The U.S. just wanted to be stronger than the Soviet Union.