The hydrogen bomb, as North Korea claimed to have successfully tested, has an infinitely superior to nuclear power as used in Hiroshima and Nagasaki in 1945.
The atomic bomb releases energy by fission of elements such as uranium or plutonium. The use of hydrogen or thermonuclear fission and fusion in a chain reaction.
At the moment it has not used any hydrogen bomb outside the sighting shots. Today, the US strategic nuclear arsenal, and certainly Russian, is composed exclusively of such devices, but in miniature with a very variable power.
- The thermonuclear or hydrogen bomb, H-bomb called, is based on the principle of nuclear fusion and releases energy than solar temperatures and pressures.
When a bomb explodes H chemical, nuclear and thermonuclear explosions occur over a period of time infinitesimal.
A first fission bomb causes a sharp rise in temperature that triggers the merger.
The November 1, 1952, the United States dropped in secret this new type of device in the Marshall Islands in the Pacific Ocean. A year later the Soviet Union announced a thermonuclear shot. The power of the largest pump H have exploited (the Soviet essay "Tsar Bomba" of 30 October 1961 on Arctic) was 57 megatons, theoretically power almost 4,000 times higher than that dropped on Hiroshima.
- The bomb, called "atomic bomb", is based on the principle of fission of atomic nuclei. It is manufactured with uranium and plutonium.
The explosion of the first device of its kind in July 1945 in the desert of New Mexico, in the United States, revealed the destructive power of this energy.
The power of the uranium bomb dropped on Hiroshima was 15 kilotons (0,015 megatons). The Nagasaki plutonium, had a comparable power (17 kilotonnes), or the equivalent of 17,000 tons of TNT. Four years later, the Soviet Union exploded its first bomb, namely August 29, 1949 in the desert of Kazakhstan.
- At least nine countries currently possess atomic bomb in the world.
It is considered that the five permanent members of the Security Council of the UN, US, Russia, China, Britain and France, are nuclear powers.
India (1974) and Pakistan (1998) joined the club of nuclear powers, like Israel, although it has never recognized.
Before the announcement of the first hydrogen bomb test, North Korea tested an atomic bomb three times in 2006, 2009 and 2013, earning him international sanctions.
Iran finally signed with major powers (United States, France, Britain, Russia, China and Germany) in July 2015 an agreement that limits Iran's nuclear program in exchange for a partial and reversible lifting of international sanctions.