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Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
Fantasy cartography, fictional map-making, or geofiction is a type of map design that visually presents an imaginary world or concept, or represents a real-world geography in a fantastic style. [1] Fantasy cartography usually manifests from worldbuilding and often corresponds to narratives within the fantasy and science fiction genres.
Science fiction is a genre of fiction. It differs from fantasy in that, within the context of the story , its imaginary elements are largely possible within scientifically established or scientifically postulated laws of nature (though some elements in a story might still be pure imaginative speculation).
Esophoria is an eye condition involving inward deviation of the eye, usually due to extra-ocular muscle imbalance. It is a type of heterophoria. Cause. Causes include: Refractive errors; Divergence insufficiency; Convergence excess; this can be due to nerve, muscle, congenital or mechanical anomalies.
A Treasury of Science Fiction is an American anthology of science fiction short stories edited by Groff Conklin. It was first published in hardcover by Crown Publishers in 1948, and reprinted in March 1951. A later edition was issued by Bonanza Books/Crown Publishers in March 1980. An abridged paperback version including eight of its thirty ...
Geocriticism is a method of literary analysis and literary theory that incorporates the study of geographic space. The term designates a number of different critical practices. In France, Bertrand Westphal has elaborated the concept of géocritique in several works. [1] In the United States, Robert Tally has argued for a geocriticism as a ...
Holography in fiction. Holography is often used as a plot device in science fiction, appearing in a wide range of books, films, television series, animation and video games. Probably the first reference is by Isaac Asimov in his Foundation series staritng in 1951. Holography has been widely referred to in movies, novels, and TV, usually in ...
Ergodic literature. Ergodic literature is a term coined by Espen J. Aarseth in his 1997 book Cybertext—Perspectives on Ergodic Literature to describe literature in which nontrivial effort is required for the reader to traverse the text. The term is derived from the Greek words ergon, meaning "work", and hodos, meaning "path". [1]
The Encyclopedia of Science Fiction. The Encyclopedia of Science Fiction ( SFE) is an English language reference work on science fiction, first published in 1979. It has won the Hugo, Locus and British SF Awards. Two print editions appeared in 1979 and 1993.
Sentenced to Prism is a science fiction novel by American writer Alan Dean Foster, a stand-alone entry in his Humanx Commonwealth series of books. Like many of his books, Foster creates an extraordinary world that he tries to make unlike anything ever seen by his readers by creating a primarily silicon-based planet with almost everything seeming to be made from crystals, glass, and reflective ...