Later on, more liberal government policies were put into place; daimyo and officials were encouraged to take more ronin into their service as samurai. However, this option only could serve a minority of ronin; in an era of peace, few clans needed the large number of samurai that they would need in times of war.
The atomic bomb was not invented by any country, it was  invented in 1933 by Leo Szilard (he was in London at the time, so  when he patented the invention he sold it to the â¦ British Admiralty  who classified it to keep the idea away from the Nazis).
6. Lise Meitner, Otto Hahn, and Fritz Strassman in 1938 discovered the process of nuclear fission in Germany. This was the experiment that perhaps most directly led to the physics behind the atomic bomb.Soon after, this experiment was repeated with success in the US.9.1k Views. The scientific developments that directly led to the first atomic bomb (fission bomb) was the discovery that you could split an atom in a process called nuclear fission and harness the energy. The main developments that led to fission and the atomic bomb are as follows: