<prompt> Pedzisa mutsara unotevera: Pakazosvika Kukadzi 1945, boka duku revasayendisiti rakanga rabudirira kubudisa huwandu hushoma hwezvinhu mune yakasarudzika yekuparadzanisa muRIKEN yakaoma zvinhu izvo cyclotron yeRIKEN yakaratidza kuti kwete uranium-235.  <response>: Operation Meetinghouse yeUSAAF yakarwisa Tokyo. Hapana kuedza kwakaitwa kuvaka murwi weuranium; mvura inorema yakanga isingawaniki, asi Takeuchi Masa, uyo akanga achitarisira mupatsanuri waNishina, akaverenga kuti mvura yakareruka yaizokwana kana uranium yaigona kupfumiswa kusvika ku510 uranium-235. 