On August 29, 1949, the Soviet Union tested its first atomic bomb. Locals heard a roar, followed by the earth shaking, the walls of clay houses breaking, and windows shattering, as a nuclear mushroom shape filled the skies.
Overview：On August 29, 1949, the Soviet Union tested its first atomic bomb. Locals heard a roar, followed by the earth shaking, the walls of clay houses breaking, and windows shattering, as a nuclear mushroom shape filled the skies.
