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In 1938, Huge Physical Physical Physics, which were flipped from New Yorks to EDApaascisò, find out a material In which a process of this guy has occurred: uranium. Fearing that nazis could discover this ability to produce a chain reaction, the Manhattan project It was born in the 1940, a secret program for the development of NUCLEZED WMAGE by Arthur Compton. Compto formed a grueling, that firmly firms and the szilard, that would say experiments in nuclea string reactions. The theoretic theoretical julius John Robert Oppnheimer was also part of the team.
December 2 1942, the first current experiment has occurred under the university of Fix FIX FIX; In a squash court, physicists built a nicknamed reactor “Chicago Pile 1” that obtained the first nuclear nuclear reaction created by man, provide the confirmation of the idea of szilard. In 1943, openmen becomes to Labor Low Low Almos in New Mexico, where the first real nuclear device in the story will be thought of and built. July 16 1945, the United States left him in the new Mexico desert. Twenty days later, August, a similar bomb of Hiroshima, and the 9th of Nagasaki City of Japan at Japan’s riper several days and the end of the second time.
A matter of nuclei
As Learn everyone in school, atoms are composed of a neutron nucleus and protons, around which orbit electrons. Atomic nuclei can join to form larger atoms, or fragment to form smaller atoms. The first case is called nuclear merge, and is the process that occurs in stars, and which revoles are you treating the lab as a means of producing energy. Under the heat and anoma pressure, the atoms fused together to form heavier atoms. For example, in a star as the sun, hidrogen fused nuclei to form helium. This process is free the energy, who rock in the solar system, creating conditions inhabited in the ground.
When a nucleus splits, perunque, we will call it, that we are exploited in a nucleared odor and a nucleared bombing. In this case, the strongest harassing atoms are fragmented in more light atoms, a process that free also. In addition to energy, excess neutrons are also released, accurately arranged the chain reaction by szilard. Sorsein the chain refuses, however the fissile material should hurt critical – a state where enough neutrons are being released other more atoms to split. In a nuclear reactor, realizing criticism is the goal; In a atomic bomb, needs to overcome, where a reaction multiple recoups in many reaction due to the latest contractions to climb.
By the fancing fancy
Those weapons discussed so far are “bombing atomic” classic, based on the fessation. Typically, a atomic bomb is tracked by a chemical explosion, that compresses a mass of uranium or pluty until critical survipes. Sysquist in contracting field of research, however, led to another type of nuclear device, called picble. These are called hermonuclear bombs, in which a sequence of two explosions occurs. Primary Explosion is equivalent to a bombing of the bomb, with the Inforea sequence of chemical explosion and fission string. Energy released from primary explosion then lead to a secondary explosion, used the melting of hydrogen atoms. The most powerful device of this type published and tested is the famous tsar bomm, that has been detonated in the ancient in 1961 by the Soviet Union.
How the explosion is found
We all have the image of a mushroom cloud in our mind. But how do you originate? As soon as an atomic bomb discovering, the first second, there is an energy liberation for free rays and free range rays. Exploration appears as a burning sphere expanding to dozen miles from the point of trigger. This burning explosion, rising in the atmosphere, creates the typical mushroom form. A thermal flash is doing; Heat Issuing can start fire and cause burning miles away from the center of explosion (according to the bomb power.
Expanding so quickly, the explosion creates a shock sound, a sudden change in atmospheric pressure creating a lot of the destruction associated with atomic bombs. The peculiarity of bombing bomb, however it is the radio walk, tamme: the shower that summies from the area surrounding the rival elements and decompoles.
This story has originally Wired Italy and has been translated by Italian.
