Hi It is a little more complicated than that. You method would just make a big pile of hot radioactive mess. No boom. If you put it in something that would also evaporate, you could make a mess like Chernobel (sp?). To make a bomb, you have to quickly cause a large number of neutrons with the right energy level. You also have to contain it long eneough for things to multiply before it pushes it self apart. Making a small bomb is beyond most anyones capabilities. Making a really large one is not as hard. Dwight