To protect the country that made them or most countries use it to gain more protection of other contries or to threaten other countries. :)
They were made by the United States during WW2.
40,000
The nuclear material used to make the bombs was from Oak Ridge TN
there were two types of nuclear bombs. A "gun type" bomb and an implosion type one with a plutonium core
Yes because the American bomber aircraft dropped two atomic bombs in Japan but now the atomic bombs are called nuclear bombs, the first nuclear weapon was ever invented.
plutonium and neutrons
Uranium, plutonium or hydrogen.
They were made by the United States during WW2.
Some bombs are nuclear. But most bombs are not nuclear.
40,000
china,russia,usa,uk!......
Never, at least not yet.
The nuclear material used to make the bombs was from Oak Ridge TN
None, the US currently only refurbishes existing bombs.
Yes, there is nuclear energy in nuclear bombs. It is released in a few microseconds when they are detonated.
Beacause millions of lives were taken by the nuclear bombs
No, China has several hundred nuclear bombs and has had bombs since 1964.