Q:Information:  - Science Fiction and Fantasy Writers of America, or SFWA (or ) is a nonprofit 501(c)3 organization of professional science fiction and fantasy writers in the United States. It was founded in 1965 by Damon Knight under the name Science Fiction Writers of America, Inc. The president of SFWA as of 2015 is Cat Rambo.  - Big science is a term used by scientists and historians of science to describe a series of changes in science which occurred in industrial nations during and after World War II, as scientific progress increasingly came to rely on large-scale projects usually funded by national governments or groups of governments. Individual or small group efforts, or Small Science, is still relevant today as theoretical results by individual authors may have a significant impact, but very often the empirical verification requires experiments using constructions, such as the Large Hadron Collider, costing between $5 and $10 billion.  - Hard science fiction is a category of science fiction characterized by an emphasis on scientific accuracy. The term was first used in print in 1957 by P. Schuyler Miller in a review of John W. Campbell, Jr.'s "Islands of Space" in "Astounding Science Fiction". The complementary term soft science fiction, formed by analogy to hard science fiction, first appeared in the late 1970s. The term is formed by analogy to the popular distinction between the "hard" (natural) and "soft" (social) sciences. Science fiction critic Gary Westfahl argues that neither term is part of a rigorous taxonomy; instead they are approximate ways of characterizing stories that reviewers and commentators have found useful.  - The Ringworld Throne is a novel by Larry Niven , first published in 1996 . It is the direct sequel to his previous work The Ringworld Engineers ( 1980 ) . He wrote it as a replacement after being unable to finish his contracted novel The Ghost Ships , the sequel to The Integral Trees and The Smoke Ring .  - The Integral Trees is a 1984 science fiction novel by Larry Niven (first published as a serial in "Analog" in 1983). Like much of Niven's work, the story is heavily influenced by the setting: a gas torus, a ring of air around a neutron star. A sequel, "The Smoke Ring", was published in 1987.  - A neutron star is the collapsed core of a large (1029 solar masses) star. Neutron stars are the smallest and densest stars known to exist. Though neutron stars typically have a radius on the order of 10 km, they can have masses of about twice that of the Sun. They result from the supernova explosion of a massive star, combined with gravitational collapse, that compresses the core past the white dwarf star density to that of atomic nuclei. Most of the basic models for these objects imply that neutron stars are composed almost entirely of neutrons, which are subatomic particles with no net electrical charge and with slightly larger mass than protons. They are supported against further collapse by neutron degeneracy pressure, a phenomenon described by the Pauli exclusion principle. If the remnant has too great a density, something which occurs in excess of an upper limit of the size of neutron stars at 2-3 solar masses, it will continue collapsing to form a black hole.  - Science fiction (often shortened to SF, sci-fi or scifi) is a genre of speculative fiction, typically dealing with imaginative concepts such as futuristic science and technology, space travel, time travel, faster than light travel, parallel universes, and extraterrestrial life. Science fiction often explores the potential consequences of scientific and other innovations, and has been called a "literature of ideas." It usually avoids the supernatural, and unlike the related genre of fantasy, historically science fiction stories were intended to have a grounding in science-based fact or theory at the time the story was created, but this connection is now limited to hard science fiction.  - The Magic Goes Away is a fantasy short story written by Larry Niven in 1976, and later expanded to a novella of the same name which was published in 1978. While these works were not the first in the "Magic Universe" or "Warlock" series, they marked a turning point after the 1973 oil crisis and Niven's subsequent transformation of the series into an allegory for a modern-day energy crisis. The setting was later used as a backdrop for a series of full-length novels, "The Burning City" (2000) and its sequel, "Burning Tower" (2005), which were co-written with Jerry Pournelle.  - Laurence van Cott Niven (born April 30, 1938)known as Larry Nivenis an American science fiction writer. His best-known work is "Ringworld" (1970), which received Hugo, Locus, Ditmar, and Nebula awards. The Science Fiction and Fantasy Writers of America named him the 2015 recipient of the Damon Knight Memorial Grand Master Award. His work is primarily hard science fiction, using big science concepts and theoretical physics. It also often includes elements of detective fiction and adventure stories. His fantasy includes the series "The Magic Goes Away", rational fantasy dealing with magic as a non-renewable resource.  - Detective fiction is a subgenre of crime fiction and mystery fiction in which an investigator or a detectiveeither professional or amateurinvestigates a crime, often murder.  - Fantasy is a fiction genre set in an imaginary universe, often but not always without any locations, events, or people from the real world. Most fantasy uses magic or other supernatural elements as a main plot element, theme, or setting. Magic and magical creatures are common in many of these imaginary worlds. Fantasy is generally distinguished from the genres of science fiction and horror by the expectation that it steers clear of scientific and macabre themes, respectively, though there is a great deal of overlap between the three, all of which are subgenres of speculative fiction.  - The Locus Awards are an annual set of literary awards by the science fiction and fantasy magazine "Locus", a monthly based in Oakland, California, United States. The award winners are selected by poll of magazine readers.  - Ringworld is a 1970 science fiction novel by Larry Niven, set in his Known Space universe and considered a classic of science fiction literature. Niven later added four sequels and four prequels. (The Fleet of Worlds series, co-written with Edward M. Lerner provides the four prequels as well as "Fate of Worlds", the final sequel.) These books tie into numerous other books set in Known Space. "Ringworld" won the Nebula Award in 1970, as well as both the Hugo Award and Locus Award in 1971.  - The Ringworld Engineers is a 1980 science fiction novel by Larry Niven. It is the first sequel to Niven's award-winning "Ringworld" and was nominated for both the Hugo and Locus Awards in 1981.  - The Damon Knight Memorial Grand Master Award is a lifetime honor presented annually by the Science Fiction and Fantasy Writers of America to no more than one living writer of fantasy or science fiction. It was inaugurated in 1975 when Robert Heinlein was made the first SFWA Grand Master and it was renamed in 2002 after the Association's founder, Damon Knight, who had died that year.    Given the information, choose the subject and object entities that have the relation of 'genre'.
A:
the ringworld throne , science fiction novel