John Quincy Stewart
John Quincy Stewart (September 10, 1894, Harrisburg, Pennsylvania – March 19, 1972, Cottonwood, Arizona) was an American astrophysicist.
Les mer...John Quincy Stewart (September 10, 1894, Harrisburg, Pennsylvania – March 19, 1972, Cottonwood, Arizona) was an American astrophysicist.
Les mer...