Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Bayan yakin, an sake farfado da sha'awar zane-zane. Fa'idarsa a bayyane ita ce cewa wani harsashi na plutonium, wanda ya lalace da girgizar ƙasa kuma ya koma ciki zuwa tsakiyarsa, zai ɗauki ƙarfin motsi zuwa cikin haɗuwarsa mai ƙarfi a matsayin ƙwallo mai ƙarfi. Zai zama mai kashe kansa, yana buƙatar ƙaramin mai lalata U-238, babu mai tura aluminium da ƙananan fashewa.  Tambaya: Wace irin karamin magudi za a buƙaci?
U-238