 Ramba uchiverenga ndima ino - Zvirongwa zvaShchelkin zvokuramba achitsvakurudza uye kuita rimwe basa zvakambovhiringidzwa nokurwiswa kwakaitwa Soviet Union nevaNazi. Akazvipira uye akanga ari muuto rezvombo zvechiuto che64th rifles division, akabatanidzwa mukurwisana kuti adzivirire Moscow. Muna 1942, akarayirwa kuti adzokere kuInstitute of Chemical Physics iyo yakanga yaendeswa kuKazan neDeputy Peoples Commissar for Defense, Yevgeny Schadenko. Akanga achishanda pakutsvakurudza nezvokupisa kwemotokari dzendege. Muna 1943, Institute akadzokera kuMoscow, uye gore rakatevera akagadzwa mukuru murabhoritari. Muna 1946, akanyora rondedzero yekupedzisira, Kutsva nekukurumidza uye kuputika kuputika yakabudiswawo semonograph muna 1949. Akakokwa kuti ave mutevedzeri womutungamiriri weInstitute for Physical Problems paAcademy, asi akaramba kupiwa kwokupfuurira kunzvera kwesayenzi. Nguva pfupi yapfuura, zvakadaro, aive chikamu chemakomisheni akasarudzika akakurukura kuumbwa kwenzvimbo yechipiri yekutsvagisa zvombo zvenyukireya, iyo yakazozivikanwa seLabhoritari B, pane peninsula yeLake Sungul , kwaakashanda sechikamu cheKB-11 nzvimbo yakavanzika yekugadzira zvombo zvenyukireya iri muSarov, ikozvino All-Russian Scientific Research Institute yeExperimental Physics, uye uko ruzivo rweSainzi rweGerman rwakashandiswa sechikamu che Russian Alsos. Muna 1949, panzvimbo yokuedza iri muSemipalatinsk, Kazakhstan, Shchelkin akatungamirira kuiswa kwechombo chokutanga chenyukireya cheSoviet pachivako, akaisa chivharo chinoputika pachivako cheplutonium iye pachake uye akatungamirira zvimwe zvakazotevera. Nokuda kwokubudirira uku, akagamuchira mubayiro weHero of Socialist Labour; vamwe vakawanda vakatevera mumakore akatevera, kusanganisira basa rokutanga reSoviet thermonuclear weapon. 