ther wave called the blast, this was due to the rapid expansion of the air behind the shock wave. The initial shock wave represented half of the explosions total energy. The wind pressure created by blast was thirty-five tons per square meter while the wind velocity reached 440 meters per second (Katayama). This was the first use of a nuclear weapon in human history and America was the first country to possess this massive weapon. Its use caused the death of hundreds of thousands of people and ended a war. Its physical effects were equally rivaled in its political impact, between American, Japan, and the rest of the world. The
             The bomb's affects of Hiroshima were horrifying. Anyone within one kilometer of the bomb's impact point was killed, either by thermal rays or radiation. Radiation is the result of the decay of various elements and is released through three different types of rays: alpha, beta, and gamma. The rays produced by the radiation travel through the person's body, if the rays strike a strand of DNA it could change the DNA's composition. This is known to cause various forms of cancer and genetic mutations within humans. The lethality of the radiation is determined by the amount of exposure, time of the exposure, and the types of rays. Intense exposure to radiation can be fatal within hours while low amounts can be fatal twenty years later. The thermal rays melted people's skin due to its concentrated heat and many people lost their vision. Anyone within five hundred meters of the impact point was killed from fatal radiation. Dan O'Neill, a columnist from the Fairbanks Daily News-Miner and a historian of Alaskan nuclear experiments, described it as, "if you think of your chromosomes like a pyramid stack of milk bottles, a particle of radiation is like the baseball that knocks it apart." These particles of radiation tear through the person's body, if any of these particles is to hit a strand of DNA (Deoxy...