The cause of building an atomic bomb in the USA was that, on the August 2nd 1939, some scientists wrote to president Roosevelt about the efforts in Nazi Germany to purify Uranium-235 with which might be turned to be used to build an atomic bomb. It was shortly thereafter that the US Government began serious undertaking known as the Manhattan Project. The Manhattan Project was designed to research and production that would produce an atomic bomb. The first cause of using the nuclear power as an atomic power was that the Americans had believed that Japan would never surrender during the WW II. Japan had occupied the islands on the coast of Pacific and they were cruel to the people living there. As a result, some Americans thought that Japan had deserved to be taught a lesson.
Another cause for using the nuclear power, that the bomb costed $2 billion, so it would have been difficult to justify not using it after such a huge financial investment. By 1945, the project had nearly 40 laboratories and factories which employed 200,000 people. That was more than the total amount of people employed in the US automobile industry in 1945. The total cost of the project was $2 billion which is about the equivalent of $26 billion today. The final cause of using the atomic bomb was to show the superiority to the USSR because during the war, the USA and the USSR were fighting for different sides, they were rivals, resulting in showing the world who the strongest of all was, so the USA dropped the bomb. These four events tell us that why the nuclear power used as a weapon and changed the world and the effects of this change felt at all levels: in the world history, on the countries, on human beings and on the scientific development, launching us into the Atomic Age.
On August 6th and 9th 1945, The USA dropped two bombs on the Japanese cities of Hiroshima and Nagasaki. One of the biggest effects of the atomic bombs was that World War II ended resulting in more than 140.000 people estimated to be killed by the bomb and the areas would be devoid of vegetation for 75 years. The effects of the atomic bombs felt on people’s health and on the environment. Acute radiation poisoning, which occurred directly after the explosion, caused nausea, vomiting, fatigue, diarrhoea hair loss and even death in thousands of people for months. After effects of radiation such as keloid’s, leukemia cancer and birth defects still appear even today. Black Rain containing large amounts of nuclear fallout are still floating in the atmosphere from the explosion that happened more than 50 years ago, possibly affecting countries all over the world.
The bomb didn’t only affected Japanese. It also affected the USA. The Manhattan Project that developed the bomb costed $2 billion dollars. That roughly equals 26 billion dollars today which is almost as much as the combined cost of all mines, grenades and bombs used in WW II. The atomic bomb has left a permanent mark on the world, but it’s not all bad.
A lot of good has come from its research. One of the biggest benefits was that it led to the discovery of how to harness nuclear power; For instance, nuclear power plants are much more efficient than conventional power plants and they have become a large supplier of power for the world. In conclusion, in the 50 years since history’s first atomic explosion, the promises and the benefits of nuclear science have touched nearly every aspect of our culture and politics. We have turned nuclear power into a reliable source of energy..