Tampa Bay Rays | Alpha Phi Alpha | Sigma Alpha Epsilon | Kappa Alpha Psi | Alpha | Phi Mu Alpha Sinfonia | Pi Kappa Alpha | Alpha Blondy | Piper Alpha | Alpha Delta Phi | Alpha Centauri | alpha | Sigma Alpha Mu | Kappa Alpha Theta | ISO 3166-1 alpha-2 | Alpha Video | Alpha Kappa Alpha | Alpha Epsilon Pi | Sony Alpha | Kappa Alpha Society | Zeta Tau Alpha | Sigma Alpha Iota | Sid Meier's Alpha Centauri | Lambda Chi Alpha | Kappa Alpha Order | Alpha TV | Alpha Group | Alpha Gamma Rho | Alpha Bank | Wolfram Alpha |
In 1903, it was Ernest Rutherford who proposed to call Villard's rays gamma rays because they were far more penetrating than the alpha rays and beta rays which he himself had already differentiated and named (in 1899) on the basis of their respective penetrating powers.
Robert Bowie Owens (1870–1940), U.S. electric engineer who discovered alpha rays