. . . . . . . . . . "71375441"^^ . . "1100152143"^^ . . . . . . . . . "Alvin Boyd Cardwell (October 16, 1902, Oral, Roane County, Tennessee \u2013 September 8, 1992, Kingston, Tennessee) was an American experimental physicist, specializing in \"thermionic and photoelectric emission of electrons from crystalline metals.\""@en . . . . . . . . . . . . . . . . . "Alvin B. Cardwell"@en . . . . . "Alvin Boyd Cardwell (October 16, 1902, Oral, Roane County, Tennessee \u2013 September 8, 1992, Kingston, Tennessee) was an American experimental physicist, specializing in \"thermionic and photoelectric emission of electrons from crystalline metals.\""@en . . "7603"^^ . .