Rubuta ci gaba don wannan sakin layi - A watan Fabrairun 1945, wani karamin rukuni na masana kimiyya sun yi nasarar samar da wani karamin abu a cikin wani mai rarrabawa a cikin hadaddun RIKEN - kayan da RIKEN's cyclotron ya nuna "ba" uranium-235 ba.
Ka yi haƙuri. Babu wani yunƙuri da aka yi don gina tarin uranium; ruwa mai nauyi ba shi da wadata, amma Takeuchi Masa, wanda ke kula da mai raba Nishina, ya yi lissafin cewa ruwa mai sauƙi zai isa idan za a iya wadatar da uranium zuwa 5<unk>10% uranium-235.