The word "psionics" first appeared in print in a novella by science fiction writer Jack Williamson — "The Greatest Invention" — published in "Astounding Science Fiction" magazine in 1951. Williamson derived it from the "psion", a fictitious "unit of mental energy" described in the same story. (Only later was the term retroactively described in non-fiction articles in "Astounding" as a portmanteau of "psychic electronics", by editor John W. Campbell.) The new word was derived by analogy with the earlier term radionics. (“Radionics” combined "radio" with "electronics" and was itself devised in the 1940s  to refer to the work of early 20th century physician and pseudoscientist Albert Abrams.) The same analogy was subsequently taken up in a number of science fiction-themed neologisms, notably bionics ("bio-" + "electronics"; coined 1960) and cryonics ("cryo-" + "electronics"; coined 1967). In the 1930s, three men were crucial to inciting John W. Campbell's early enthusiasm for a "new science of the mind" construed as "engineering [principles] applied to the mind". The first was mathematician and philosopher Norbert Wiener — known as the "father of cybernetics" — who had befriended Campbell when he was an undergraduate (1928–31) at MIT. The second was parapsychologist Joseph Banks Rhine whose parapsychology laboratory at Duke University was already famous for its investigations of "ESP" when Campbell was an undergraduate there (1932–34) The third was a non-academic: Charles Fort, the author and paranormal popularizer whose 1932 book "Wild Talents" strongly encouraged credence in the testimony of people who had experienced telepathy and other "anomalous phenomena". The idea that ordinary people only utilize a small fraction of the (potentially enormous) capabilities of the human brain had become a particular "pet idea" for Campbell by the time he first published his own science fiction writings as a college student. In a 1932 short story he asserted that "no man in all history ever used even half of the thinking part of his brain". He followed up on this notion in a note to another story published five years later: The total capacity of the mind, even at present, is to all intents and purposes, infinite. Could the full equipment be hooked into a functioning unit, the resulting intelligence should be able to conquer a world without much difficulty.