廣島核爆炸ppt

1、Atomic bombings of HiroshimaContents: Background process Impact Why was Hiroshima chosen as the target?2.Background Following a firebombing campaign that destroyed many Japanese cities, the Allies prepared for a costly invasion of Japan. The war in Europe ended when Nazi Germany signed its instrumen

2、t of surrender on 8 May, but the Pacific War continued. Together with the United Kingdom and the Republic of China, the United States called for a surrender of Japan in the Potsdam Declaration on 26 July 1945, threatening Japan with prompt and utter destruction. The Japanese government ignored this

3、ultimatum. American airmen dropped Little Boy on the city of Hiroshima on 6 August 1945, followed by Fat Man over Nagasaki on 9 August.The Atomic bombing in HiroshimaThe damage that nuclear explosion brought燒灼傷原子彈引發(fā)的大量熱線和放射線，爆心1千米以內(nèi)的人，均受到了5度的重度燒傷，表皮全部碳化。熱線的影響范圍是3.5千米以內(nèi)。此范圍內(nèi)的木質(zhì)房屋大都自燃，更是造成了二次燒傷。爆心1千米以

4、內(nèi)而又在屋外的人，90%在7天內(nèi)死亡。外傷沖擊波本身會(huì)對(duì)被害者造成損傷；沖擊波毀壞的建筑物的碎片以高速?zèng)_向被害者，也會(huì)造成二次外傷。有人的眼球和內(nèi)臟甚至直接從體內(nèi)飛了出去，慘不目睹。放射能癥原子彈爆炸發(fā)射出的大量放射線，使大量被害者得了急性放射能癥。癥狀是惡心、嘔吐、食欲不振、腹瀉、發(fā)熱、脫毛癥、皮下出血等等。也有人因此得了白血病。被害者大部分在一個(gè)月內(nèi)死亡。二次放射能癥隨后趕來救援的人，因?yàn)榉雷o(hù)措施不到位，也有人得了放射能癥，不過數(shù)量較少。受黑雨(核輻射塵和云中的水汽混合在一起，形成了黑色的雨落在廣島一帶 )影響的人，也得了二次放射能癥。核輻射染上核輻射，會(huì)得原子病，失明、脫發(fā)、肌體萎縮，最

5、后痛苦地死去。而且受輻射的人很難與健康的人結(jié)婚，他們結(jié)婚后出生的嬰兒，全部智力遲鈍。甚至出現(xiàn)畸形，這樣，僥幸大難不死的人，也有無盡的痛苦與他們終生為伴。 Specific performance Deaths Victims of Hiroshima The bombing have a great impact on Japanese people, especially those who survived. They have to suffer from radiation sickness for ever. It seems that Japanese people have re

6、covered from the bombing, however, there are still something that they cannot forget.Injuries (1)Injuries(2)RuinsWhy was Hiroshima chosen as the target?1.At the time of its bombing, Hiroshima was a city of both industrial and military significance. A number of military camps were located nearby, inc

7、luding the headquarters of Field Marshal Shunroku Hatas 2nd General Army which commanded the defense of all southern Japan.(廣島是日本重要的工業(yè)及軍事中心，有一些軍事設(shè)施就位于廣島附近，包含負(fù)責(zé)防御日本南部的畑俊六第二陸軍總部 )2.Hiroshima was a minor supply and logistics base for the Japanese military but it also had large depots of military suppli

8、es and was a key center for shipping.(廣島是一個(gè)小型的日軍補(bǔ)給及物流基地，也是一個(gè)軍隊(duì)的通訊、存儲(chǔ)中心與集結(jié)區(qū)域 )3.The center of the city contained several reinforced concrete buildings and lighter structures. Outside the center, the area was congested by a dense collection of small wooden workshops set among Japanese houses.(市中心有幾個(gè)鋼筋混凝土建筑物及較松散的建筑物，市中心以外則是擁擠的日本木造房屋-容易受到火災(zāi)破壞)4.The population