Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: The ƙoƙari na farko don amfani da dangantakar symbiotic tsakanin fission da fusion wani zane ne na 1940s wanda ya haɗu da fission da fusion man fetur a cikin sauye-sauye na bakin ciki. A matsayin na'urar mataki daya, zai zama aikace-aikacen da ba shi da amfani da fission. Ya fara zama mai amfani lokacin da aka haɗa shi a cikin na biyu na makamin nukiliya mai zafin jiki. Sunan Amurka, Alarm Clock, ya fito ne daga Teller: ya kira shi hakan ne saboda yana iya "farkawa duniya" ga yiwuwar yiwuwar Super. Sunan Rasha don wannan ƙirar ya fi bayani dalla-dalla: Sloika (Rasha: Слойка), wainar da aka yi da shi. An gwada Sloika na Soviet guda ɗaya a ranar 12 ga Agusta, 1953. Ba a gwada sigar Amurka mai mataki ɗaya ba, amma harbi na Union na Operation Castle, 26 ga Afrilu, 1954, ya kasance na'urar thermonuclear mai matakai biyu mai suna Alarm Clock. Sakamakonsa, a Bikini, ya kasance 6.9 megatons.  Tambaya: Yaya girman bam ɗin agogon ƙararrawa?
6.9 megatons