Umbhalo Waphansi

a Ngokwesibonelo, okuningi kokucwaninga kwe-Manhattan Project, isimiso somzamo obumbene sase-U.S. esakha ibhomu le-athomu, kwenzelwa ezindaweni zokucwaninga ngezesayensi zaseYunivesithi yaseChicago naseYunivesithi yaseCalifornia eBerkeley.