A bit over 3500 active units, with parts from a similar number of dismantled units that could be rebuilt relatively quickly if needed.
Russia started testing and constructing nuclear, and atomic bombs at the end of WW2. today, they own more the 4000 operational nuclear warheads. along with a total 12000 in storage.
No, it is perfectly legal as long as it is used on your own property.
Officially no, nobody sells them. You would have to make your own. But even the needed fissile material is not sold! However, that said there might be a secret black market selling either the material or finished bombs. That is part of the fear of North Korea (already known to have tested bombs) or Iran developing nuclear bombs, that they would sell them.
yes, some people research and try to make nuclear bombs in their own houses.
No, they made their own. After their first test in 1949 (which was a copy of the US Fatman based on espionage) they designed them on their own also.
The atomic bomb has been replaced by the nuclear bomb. This type of weapon was first developed by the US in the early 1950's. Soon afterwards, the Soviet Union also created their own style of nuclear weapons and bombs.
It is certainly possible to argue that the use of atomic bombs against Japan killed indiscriminately, that it was cruel, that it caused hundreds of thousands of cases of cancer well after the war was over, and that it sets a dangerous precedent for the use of nuclear weapons in the future. However, I also know of excellent arguments in support of the atomic bombing of Japan. I am not going to mention all of them, but remember before you condemn America, that Japan was at war with America by its own choice. America did not even want to get involved in WW II, but was left no choice after the Japanese attack on Pearl Harbor. You reap what you sow.
Ernest Rutherford did not make the nuclear bomb. He was a physicist who conducted pioneering work in the field of nuclear physics, particularly on the structure of the atom. The development of the nuclear bomb was primarily led by other scientists during the Manhattan Project in World War II.
BRING YOUR OWN BOMBS!
4
about 5 thousand
To end the war quickly without an invasionThe US had already spent $2 billion dollars making them, if he did not use them Truman knew he would be raked over the coals in congress for wasting themTo save lives on both sides, if we invaded well over 90% of the Japanese population would die, either in battle or by their own handTo keep the Soviets out of northern Japan