Science was developed by man for many reasons, one of which is self-defense against his enemies. During the 1930s and 1940s, scientists worked on producing destructive weapons through nuclear science. Early scientific investigation of the atom and the molecules showed that enormous amounts of energy could be created through nuclear fission and divisions. Indeed, perhaps even those scientists who worked on the atomic bomb themselves did not think that they were actually producing one of the most horrifying weapons in human history. At the same time, those politicians, leaders and military officials who supported developments in the field of nuclear science were not aware that they were actually investing in a weapon that they would not be able to use in the future. Hiroshima and Nagasaki were exceptions of course. August 1945 was certainly the hottest month in the history of these cities which will remain as symbols of nuclear destruction and paranoia in human memory. Since 1945, there has been no other event in which nuclear weapons have been used, even on the most limited scale. The reason is that the world, being aware of what happened in Hiroshima and Nagasaki, did not want to witness another round of mass destruction. The end of the Cold War in 1989 allowed the world to take a sigh of relief since nuclear competition between the USSR and the US would come to an end. However, the threat was far from over. Nuclear weapon technology is now available in the hands of several countries, and it is only the means that these countries lack, not to mention the ingredients and the necessary technology to develop modern nuclear weapons. The development of the atomic bomb was perhaps one of the most powerful advancements in the history of mankind, but this has turned into a curse on humanity, not only following Hiroshima and Nagasaki, but also with the awareness of the threats that the atomic bomb has on life today.