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A nuclear weapon is a weapon which derives its destructive force from nuclear reactions of either nuclear fission or the more powerful fusion. As a result, even a nuclear weapon with a relatively small yield is significantly more powerful than the largest conventional explosives, and a single weapon can be capable of destroying or seriously disabling an entire city.

In the history of warfare, nuclear weapons have been used only twice, both during the closing days of World War II. The first event occurred on the morning of 6 August 1945, when the United States dropped a uranium gun-type device code-named "Little Boy" on the Japanese city of Hiroshima. The second event occurred three days later when a plutonium implosion-type device code-named "Fat Man" was dropped on the city of Nagasaki. The use of the weapons, which resulted in the immediate deaths of at least 120,000 individuals (mostly civilians) and about two times that number over time, was and remains controversial � critics charged that they were unnecessary acts of mass killing, while others claimed that they ultimately reduced casualties on both sides by hastening the end of the war. (See Atomic bombings of Hiroshima and Nagasaki for a full discussion.)

Since that time, nuclear weapons have been detonated on over two thousand occasions, mostly for testing purposes, chiefly by the United States, Soviet Union, United Kingdom, France, People's Republic of China, India and Pakistan. These countries are the declared nuclear powers (with Russia inheriting the weapons of the Soviet Union after its collapse).

Various other countries may hold nuclear weapons, but they have never publicly admitted possession, or their claims to possession have not been verified. For example, Israel has modern airborne delivery systems and appears to have an extensive nuclear program (see Israel and weapons of mass destruction); North Korea has recently stated that it has nuclear capabilities (although it has made several changing statements about the abandonment of its nuclear weapons programs, often dependent on the political climate at the time) and Iran was accused by a number of governments of attempting to develop nuclear capabilities, and now acknowledges that it is trying to obtain nuclear power, supposedly for peaceful purposes. South Africa is the only country to have developed an atomic bomb and then renounced possession of them (though several former Soviet Republics gave up their "inherited" nuclear arms after the breakup of the U.S.S.R.) For more information see List of countries with nuclear weapons.

Apart from their use as weapons, nuclear explosives have been proposed for various non-military uses.

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โˆ™ 2017-01-18 11:44:35
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Q: What was the atomic bomb?
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Related questions

Is Pakistani bomb is an Islamic bomb?

If you consider the US atomic bomb is a Christian bomb, the French atomic bomb is also Christian bomb and so on, then you can name the Pakistani atomic bomb an Islamic bomb.

Which is more powerful an atomic bomb or a nuclear bomb?

Both. An atomic bomb IS a nuclear bomb.

How was an atomic bomb repaired?

how was the atomic bomb repaired

What is the difference between an atom bomb and an atomic bomb?

Atom bomb is a shorter version of Atomic bomb

New inventions in the Holocaust?

Atomic Bomb Atomic Bomb

What can the atomic bomb do?

The principle of the atomic bomb is the nuclear fission.

Who discoverd the atomic bomb?

The atomic bomb is an artefact, and so an invention. Maybe you meant to ask who invented the atomic bomb ?

When did Pakistan explode their first atomic bomb?

18th May1998, but its not atomic bomb (its nuclear bomb)

What is another name for atom bombs?

Nuclear BombHydrogen BombA-bombH-bombAtomic bombAtomic warheadNuke

How did atomic theory lead to the atomic bomb discovery?

the atomic bomb was not discovered, it was invented then built.

Is there a timeline for the atomic bomb?

porket may atomic , bomb agad,

Did Thomas Edison build the atomic bomb?

he did not build the atomic bomb

Why Germany did not drop atomic bomb?

Germany never had an atomic bomb.

What is a radioactive atomic bomb?

any atomic bomb is radioactive, by definition

Who created and used the atomic bomb?

the us created the atomic bomb

On 1945 was the bomb dropped on hiroshima a atomic bomb or a uranium bomb?

It was both: an atomic bomb using uranium as its fuel.

Is the nuclear bomb bigger than the atomic bomb?

i think they're the same. the atomic bomb is a type of nuclear bomb

What is stronger between the atomic bomb and hydrogen bomb?

In general, a fusion bomb (hydrogen bomb) is more powerful than a fission (atomic) bomb. Fusion bombs use an atomic bomb to begin the fusion reaction.

What was the atomic bomb tested at trinity?

The atomic bomb at Trinity was an implosion design plutonium device or bomb.

What element was in the atomic bomb that was dropped on Nagasaki?

The second atomic bomb, dropped on Nagasaki, was a Plutonium bomb.

What was the population of nagasaki after the atomic bomb?

the population of Nagasaki after the atomic bomb was 166,000.

Was nagasaki hit by an atomic bomb?

Yes it was one of the targets for an atomic bomb.

What country was the first to get the atomic bomb?

The atomic bomb was created by the United States.

Who worked on the first atomic bomb?

The Atomic Bomb was not "discovered". It was designed and created.