The United States conducted a hydrogen bomb test on Bikini Island in the Marshall Islands of Micronesia. After the Soviet Union's possession of the atomic bomb ended its monopoly on the atomic bomb, the United States began developing a hydrogen bomb in January 1952, and detonated the first of a series of hydrogen bomb tests on March 1, 1954. It is said that the yield of the test was about 15 megatons of TNT, more than twice the explosive power that the United States had anticipated, and ash containing radioactive material fell over the area designated by the United States as a danger zone and into an almost elliptical area downwind from Bikini Island, covering an area of about 7,000 square miles (about 18,000 km2). Source: Heibonsha World Encyclopedia, 2nd Edition Information |
アメリカがミクロネシアのマーシャル諸島ビキニ島で行った水爆実験。アメリカはソ連の原爆保有で原爆独占が崩れると1952年1月水爆開発に着手し,54年3月1日,一連の水爆実験の第一弾を爆発させた。その威力はTNT火薬にして約15メガトン,アメリカが予想した2倍以上の爆発力であったといわれ,放射性物質を含む灰はアメリカが危険区域として指定した地域を越えビキニ島から風下側のほぼ楕円形の地域に降下し,その面積は約7000平方マイル(約1万8000km2)に及んだ。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
<<: Drawing process - hikinukikakou
It originates on the southern slope of Mt. Ishizu...
...After the research of PG Vinogradov, E. Durkhe...
...The rhyme used was mainly a variation of the h...
…They appear in association with inflammation suc...
Born 1617. Somerset, Alderman Died June 26, 1688. ...
…Arsaces I (r. 247-217 or 214 BC) led the Parnoi,...
...a conference of representatives of democratic ...
A waxy substance that adheres to the surface of w...
An inland city in the center of Cuba, it is the ca...
Also known simply as cardiac asthma. Paroxysmal dy...
…Its origins lie in the singing of songs to enter...
A rebellion started by Oshio Heihachiro and others...
Year of death: 21st January, 1864 (28th February, ...
...In Japan, it was widely used from the end of t...
Year of birth: Year of birth and death unknown. A ...