The Mightiest Machine is a science fiction novel by American writer John W. Campbell, Jr. The novel was originally serialized in 5 parts in Astounding Stories magazine from December 1934 to April 1935, and was published in book form in 1947 by The Hadley Publishing Co. in an edition of 1,200 copies. Campbell was a leading figure in the Golden Age of Science Fiction. Source: Wikipedia (en)