Chinyorwa: Paaive paGE panguva yeHondo Yenyika II, akagadzira magnetron yekuvhiringidza radar, iyo yakatungamira mukuvandudzwa kweovheni ye microwave. Paaive achidzidza hunhu hwep-i-n diode inoshandiswa sevanogadzirisa magetsi, Hall aive neruzivo rwakakosha, izvo zvakaguma nekuve iye akabatanidzwa naWilliam Shockley naW. T. Verenga, Jr., yekuongorora kwekusagadziriswa kwevatakuri vasiri-radiative mu semiconductors. Hall akagadzira semiconductor laser muna 1962, achishanda kuGeneral Electric muSchenectady, New York. Mumakore e1970, basa raHall rakanangana ne photovoltaics uye maseru ezuva. Akasiya basa muna 1987, achinge apihwa 43 US patents panguva yebasa rake. Mubvunzo: Akave nemapepaneti mangani panguva yaakasiya basa?
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