It was developed over a long period, starting in Britain in 1938 and ending with a working bomb, ready for use in 1945 in the US.
1933 by Leo Szilard. However he couldn't build it immediately. It took 12 years before the first ones were built.
he invented the dynamite or the atom bomb
No german, the inventor of the atom bomb was a hungarian.
the atom bomb
No, he invented dynamite.
The United States of America.
Einstein didn't invent the atom bomb. He might have felt regret that it had been invented, but he had no personal part in its creation.
1945
Never! Leo Szilard invented the atomic bomb in 1933.
1945
1945
An atom is not a bomb.
The atom bomb was invented by the brilliant research of a group of scientists in 1945, working on what was known as "The Manhattan Project". The lead scientist was J. Robert Oppenheimer.