Who invented the first atomic bomb?
In 1939, J. Robert Oppenheimer was the first to realize that an atomic bomb could be made as a result of nuclear fission. Prior to this, there were several scientists around the world who knew they were on the verge of discovery. It wasn’t until 1945 that the first experiment was conducted. Look here for more information: http://www.nuclearfiles.org/menu/timeline/timeline_decade.php?
