Axis initiative and Allied reaction The outbreak of war By the early part of the German dictator Adolf Hitler had become determined to invade and occupy Poland. Poland, for its part, had guarantees of French and British military support should it be attacked by Germany. Hitler intended to invade Poland anyway, but first he had to neutralize the possibility that the Soviet Union would resist the invasion of its western neighbour.
However, scientists discovered about that time that a powerful explosion might be possible by splitting an atom. This type of bomb could destroy large cities in a single blast and would change warfare forever. The mushroom cloud above Nagasaki, Japan from the atomic bomb Source: US Government Albert Einstein Albert Einstein came up with many of the theories that helped scientists in making the atomic bomb.
When he realized that such a bomb could be made, he was frightened about what might happen if Hitler and Germany learned how to make the bomb first. As a result, Roosevelt set up the Manhattan Project. Manhattan Project The Manhattan Project was the name for the research and development program for the atomic bomb.
It started small, but as the bomb became more real, the United States added scientists and funding to be sure they were the first to have the bomb. Ironically, many of the scientists involved in making the bomb had defected from Germany.
The explosion was massive and the equivalent to 18, tons of TNT. Scientists figured that the temperature at the center of the explosion was three times hotter than at the center of the sun.
Although the scientists were happy they had successfully made the bomb, they also were sad and fearful. This bomb would change the world and could cause mass destruction and death. When President Harry Truman heard of the bomb's success he wrote "We have discovered the most terrible bomb in the history of the world".
Japan was defeated as well, but would not surrender.
The US was contemplating an invasion of Japan. Army leaders figured that anywhere fromto 1 million US and Allied soldiers would die in an invasion.
President Truman decided to drop the atomic bomb instead. The explosion was huge, the city was destroyed, and tens of thousands of people were killed. The bomb itself was over 10 feet long and weighed around 10, pounds. A small parachute was on the bomb in order to slow its drop and allow the plane time to fly away from the blast zone.
The Little Boy atomic bomb Source: National Archives Nagasaki Despite witnessing the terrible destruction of the bomb on Hiroshima, Emperor Hirohito and Japan still refused to surrender.
Three days later, on August 9,another atomic bomb, nicknamed Fat Man, was dropped on Nagasaki, Japan. Again the devastation was horrible. The Emperor announced this on the radio. It was the first time most Japanese had heard his voice. He is often called the "father of the atomic bomb". The first bomb dropped on Hiroshima was made from uranium.
The bomb dropped on Nagasaki was made from plutoniumwhich was even more powerful than uranium. It is thought that at leastpeople died from the Hiroshima explosion and another 70, in Nagasaki.
Many of these people were civilians including women and children. Hiroshima was chosen because it was a large port city with an army base. It also had not been damaged much by earlier bombings.to set out a vision for a world in which war would be less likely.
The Atlantic Charter of August became the basis for. use during World War II by. Germany. Which development in weaponry changed the world the most after using the atomic bomb?
It was like other weapons of war, just more powerful. The two main American military commanders in the Pacific theater during World War II were Douglas MacArthur and Chester W. Nimitz In , U.S. Naval forces destroyed much of Japan's remaining naval fleet in the battle of.
Page Chapter The Decision To Use the Atomic Bomb. by Louis Morton (See Chapter One for information on the author.) On 6 August the United States exploded an atomic bomb over Hiroshima and revealed to the world in one blinding flash the start of the atomic age.
By the time the first atomic bomb had been made, Germany had already surrendered and World War II in Europe was over. Japan was defeated as well, but would not surrender. The US was contemplating an invasion of Japan.
What does this statement indicate about the use of the atomic bomb in World War II? The leaders of Great Britain and the Soviet Union supported dropping the bomb.
The development of an atomic bomb by the United States did which of these? Since the question asked for “americans view” let me first respond with the results of a poll on the subject: On Aug. 6, , the United States dropped an atomic bomb on the Japanese city of Hiroshima, killing tens of thousands of people – many instantly, others from the effects of radiation.