Almost twenty American naval vessels, eight large battleships and over three hundred airplanes were destroyed by the Japanese on December 7, 1941. That devastating day lead the United states into joining the World War two. The nuclear research quickly began after the war took place. President Franklin D. Roosevelt created the Manhattan project after gathering information that the Germans attempted to build an atomic bomb. Unsatisfied, the U.S took an even greater look into their research, in hopes of constructing a more destructible weapon. Years later, when Harry Truman was president, he wanted to abolish the Japanese. August 6, 1945, he did just that. The city of Hiroshima suffered a great loss. An atomic bomb was released upon them, instantaneously killing approximately 80,000 people. Three days later, Nagasaki was attacked when a second bomb was dropped, killing another 40,000 people. Truman responded to the bombs by saying, “I regarded the bomb as a military weapon and never had any doubt that it should be used. ' ' His decision made a huge impact in history. The war was the major cause of the Manhattan project, it had many long lasting effects on the people and the surrounding areas. Not only can a nuclear attack be the cause of an enormous amount of deaths, but can wipe out the entire world. There are many different aspects surrounding the steps that cause the immediate or long lasting effects such as: heat wave or blast wave. The latter occurs after the attack. The air is accelerated to high velocities, producing a very powerful wind. There is then a pressure created against objects facing the blast which is caused by the winds that create dynamic pressure. Blast damage is then caused by the combo of the dynamic pressure and the pressure jump. (Carey Sublette, Version 2.14: 15 May 1997, author of Section 5.0 Effects of Nuclear Explosions) Radiation caused by a nuclear attack can be very lethal. The rays that form can damage living tissue if exposed to, instantly killing a person. Those exposed to the radiation at the time of the attack either died or suffered immensely. The after effects such as: hair loss, possible heart failure, reproduction failure are just a few of many health problems following the strike. After an explosion, radiation (5% of the bomb 's energy) is released within the first minute or two of the explosion. The radiation from the explosion can make people unconscious if they 're in the open at a distance of less than a mile from ground 0. These people will die within 2 days (that 's if they 've managed to survive the blast and heat). Individuals a little further away will have a higher risk of dying within 1 months time. People may also come into contact with radioactive fallout. Essentially, it consist of radiated soil, weapon debris and fission products. This material falls back down to the ground after the explosion, but some may travel highly into the atmosphere. Then, it spreads across the earth within hours, days or months! Fallout is classified within two categories: early fallout (within the first 24 hours after explosion) or delayed fallout (days or years after explosion). (Carey Sublette, Version 2.14: 15 May 1997, author of Section 5.0 Effects of Nuclear Explosions) Nuclear weapons were often used for war purposes.
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The most secret project in history which involved nuclear weapons was the Manhattan project. Many scientists worked in isolation in different parts of the USA. After the Americans joined the WW2, President Harry Truman threatened the Japanese to surrender or he would unleash the bombs over Hiroshima, in attempt to end the war. The Enola Gay (name of plane) released the first bomb named "Little boy" which detonated 1900 feet over the city. That explosion caused complete devastation for approximately five square miles. A second warning was sent out to the enemies claiming that if they refuse to fallback, the United States would attack once more with equally devastating results. Three days later, August 9th is when a second bomb prepared to drop. Approaching Nagasaki, the bomber "Box car" dropped a plutonium bomb weighing in at 10,000 pounds. Nicknamed "fat man", it was
The most secret project in history which involved nuclear weapons was the Manhattan project. Many scientists worked in isolation in different parts of the USA. After the Americans joined the WW2, President Harry Truman threatened the Japanese to surrender or he would unleash the bombs over Hiroshima, in attempt to end the war. The Enola Gay (name of plane) released the first bomb named "Little boy" which detonated 1900 feet over the city. That explosion caused complete devastation for approximately five square miles. A second warning was sent out to the enemies claiming that if they refuse to fallback, the United States would attack once more with equally devastating results. Three days later, August 9th is when a second bomb prepared to drop. Approaching Nagasaki, the bomber "Box car" dropped a plutonium bomb weighing in at 10,000 pounds. Nicknamed "fat man", it was