In 1902, Marie and Pierre Curie isolate the radioactive metal called radium
In 1905, Albert Einstein formulated the theory of Special Relativity Theory. According to this theory, the mass can be regarded as another form of energy. According to Einstein, if somehow we can convert mass into energy, it will be possible to "liberate" a large amount of energy. Over the next decade, a major step taken by Ernest Rutherford and Niels Bohr explains the structure of the atomic bomb more appropriate. They say, of a positively charged nucleus and negatively charged electrons revolving around the nucleus. That is the core, the scientists concluded, that must be broken down or "explode" if the atomic bomb will be released.
In 1934, Enrico Fermi Italian destroy heavy atoms with neutrons sprayed on. But he does not realize that he has obtained a nuclear fission.
In December 1938, though, Otto Hahn and Fritz Strassman in Berlin doing similar experiments with uranium and become a world achievement. They have produced nuclear fission, they have split the atom that is 33 years after Einstein said it could be that the mass turned into energy.
On August 2, 1939, Albert Einstein wrote a letter to the President.
On August 2, 1939, Albert Einstein wrote a letter to US President Franklin D. Roosevelt. Over the past four months, he has made the possibility through the work of Joliot in France as well as Fermi and Szilard in America that allows regulate the nuclear reaction in a large mass of uranium. And also this new phenomenon that will lead to the development of the Atomic Bomb. A single atomic bomb of this type, carried by boat or exploded in a port, might very well destroy the whole port together with some of the surrounding area. He urged Roosevelt to start a nuclear program without delay. In one year later Einstein regretted the role he played in the development of such destructive weapons: "I made one big mistake in my life," he told Linus Pauling, another leading scientist, "when I signed the letter to President Roosevelt recommending that atom bombs be made" .
In December 1942 at the University of Chicago, the Italian physicist Enrico Fermi succeeded in producing the first nuclear chain reaction. This is done by setting the natural uranium is distributed in a large pile lumps of pure graphite, a form of carbon. In a nuclear reactor, the graphite moderator served to slow down the neutrons.
In August 1942, during World War II, the United States established the Manhattan Project. The purpose of this project is to develop, build, and test the Atomic Bomb. Many leading American scientists, including physicist Enrico Fermi and J. Robert Oppenheimer and Harold Urey chemistry, associated with the project, which is led by an engineer, US Army, Brigadier General Leslie R. Groves.
On May 31, 1945, sixteen people met in the office of Secretary of War Henry L. Stimson. Sixteen of these people are there to make a decision about the average American weapons have not heard, the atomic bomb. They choose a future target for "The Bomb." What they are talking about is "a new relationship of man with the universe," as said by Stimson. Secretary seems to say, is in the most critical turning point in the entire recorded history.
On July 16, 1945, the first atomic bomb or A-bomb, tested in Alamogordo, New Mexico.
On August 6, 1945, the Enola Gay, the plane America, dropped the first atomic bomb ever used in warfare in Hiroshima, Japan, eventually killing more than 140,000 people. On August 9, 1945, the United States dropped a second atomic bomb, this time in the Japanese city of Nagasaki. Although missed one mile from the target, but killed 75,000 people.On August 29, 1949, the Soviet Union's first atomic bomb test.
On 1 November, 1952 trial, a full scale successfully carried out by the United States with the fusion-type.
In 1946, the Atomic Energy Commission (AEC), civilian agencies of the US government, established the Atomic Energy Act to manage and regulate the production and use of atomic energy. Among the major programs of the new commission are:
• Production of the physical material of the atomic bomb
• Prevention of accidents
• The study of biology, health, metallurgy and production of atomic power, a study in the production of nuclear aircraft
• Declassification of data on atomic energy.
So great power that can be generated by the atomic bomb, when seen from the history of the atomic bomb used as a powerful weapon in the war, but the nuclear also has a positive side as an example as power generation, medicine, etc.
Thank you for reading this article. Written and posted by Bambang Sunarno. sunarnobamban86@gmail.com
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name: Bambang Sunarno.
http://www.primadonablog.blogspot.com/2014/11/atom-bomb.html
DatePublished: November 29, 2014 at 19:04
Tag : Atom bomb.
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