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Welcome to the Encyclopedia of Science Fiction, Fourth Edition. Some sample entries appear below. Click here for the Introduction; here for the masthead; here for Acknowledgments; here for the FAQ; here for advice on citations. Find entries via the search box above (more details here) or browse the menu categories in the grey bar at the top of this page.

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Extro

Northern Irish SF Magazine, Slick A4 format. Published bimonthly by Specifi Publications. Edited by Paul Campbell (?   -2021), with David Langford billed as nonfiction editor from #2. Three issues, dated February/March, April/May and July/August 1982. / During its brief slick-format existence Extro published fiction by Brian W Aldiss, Richard Cowper, Garry Kilworth, Christopher Priest, Bob Shaw, John T Sladek, Ian Watson, James White and others, along with interviews, essays ...

Tachyons

There is an only half-facetious precept in Physics stating that "anything which is not prohibited is compulsory". Olexa-Myron Bilaniuk and E C George Sudarshan suggested in 1962, and Gerald Feinberg in 1967, that the idea of a particle that can only travel Faster Than Light does not violate any of the basic maxims of Relativistic physics. Such a hypothetical particle (a tachyon, as opposed to the more familiar tardyon, or slower-than-light particle) might emit Cerenkov radiation analogous to ...

O'Brien, Sean

(?   -    ) US teacher and author who began to publish work of genre interest with "World Enough and Time" in The Leading Edge for February 1997. His first novel, A Muse of Fire (2010 ebook), follows the childhood of a potential Superman on the colony planet of Mnemosyne (see Colonization of Other Worlds). Vale of Stars (2012) is a Generation Starship tale set partly on the long voyage from Earth, and partly, in a narrative spanning generations, on Epsilon ...

Conspiracy X

Role Playing Game (1996). New Millenium. Designed by Rick Ernst, Shirley Madewell, Chris Pallace. / The game of Conspiracy X shares much with its rather more haunting contemporary Delta Green (1997) (see Call of Cthulhu). Player characters are agents for a secretive organization known as Aegis which defends present day America against paranormal threats, frequently of extraterrestrial origin. The most obvious influence is the television series The X-Files (1993-2002), though Conspiracy X is ...

Ackroyd, Peter

(1949-    ) UK author first active as a poet before turning to cultural studies like Dressing Up: Transvestism, Drugs and Literary Culture (1979), and only then to fiction, which as a whole can usefully, in the frame of this encyclopedia, be understood as a series of sometimes inspired exercises in Urban Fantasy [see The Encyclopedia of Fantasy under links below], with a recurring focus on London. Along lines initially promulgated in Lud Heat: A Book of the Dead Hamlets ...

Langford, David

(1953-    ) UK author, critic, editor, publisher and sf fan, in the latter capacity recipient of 21 Hugo awards for fan writing – some of the best of his several hundred pieces are assembled as Let's Hear It for the Deaf Man (coll 1992 chap US; much exp vt The Silence of the Langford 1996; exp 2015 ebook) as Dave Langford, edited by Ben Yalow – plus five Best Fanzine Hugos and one Semiprozine Hugo for his self-produced news magazine, Ansible (which see). His one ...



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