Part A – Investigation PlanThis investigation focuses on the use and necessity of the atomic bomb in World War II. How much did the atomic bomb dropped by the United States during World War II save lives? This question will be investigated using websites, books, military accounts and newspaper articles. Military calculations of what might have happened if the United States had invaded Japan instead of dropping the bomb will be studied. Additionally, information from the Manhattan Project, reinterpretations of the event, and military strategies of several countries will also be used. The physical effects of the bomb on the victims will also be taken into account. Other opinions on why the bomb was dropped will be discussed.Part B – Summary of the EvidenceEntering World War II following the Japanese attack on Pearl Harbor on December 7, 1941, the United States had to fight two dangerous military powers: Germany and Japan. Germany was developing new secret weapons that could very likely pose a potential threat to the United States. It was reported that German scientists were experimenting with splitting the atom, which would release an enormous amount of energy.1 Whoever succeeded with this tactic had the power to control the world. After receiving this information, President Harry Truman was shocked. The United States began atomic research soon after, with the help of physicists Leo Szilard and Albert Einstein.2 This effort was codenamed the Manhattan Project, which took place at Los Alamos, New York. Mexico. The project involved more than half a million people working to design and predict the results of an atomic bomb. After spending two billion dollars, a test called Trinity was carried out...... middle of paper ......domino effect beginning with the surrender of the Japanese, ending World War II and all its losses. Works cited1. Blohm, Craig E. “Manhattan Project.” Cobblestone May-June 2010: 36+. General reference center. Internet. January 4, 2011.2. Clancey, Patrick. “The effects of the atomic bomb on Hiroshima and Nagasaki. » http://www.ibiblio.org. Patrick Clancey HyperWar Foundation, 1946.Web. January 3, 2011.3. Dannen, Gene. “Atomic bomb: decision.” http://www.dannen.com. Np, August 9, 2003. Web. January 1, 20114. Davis, James Martin. “How the Atomic Bomb Saved 4,000,000 Lives.” http://www.freerepublic.com. Np, September 25, 2006. Web. January 4, 2011.5. Sullivan, Edward T. The Ultimate Weapon. New York: Holiday House, 2007. Print.6. Sullivan, Edward T. “Edward T. Sullivan-Author.” http://www.sully-writer.comWeb. December 6. 2011.