Time's Arrow (short Story)
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Time's Arrow (short Story)
"Time's Arrow" is a science fiction short story by British writer Arthur C. Clarke, first published in 1950 in the first issue of the magazine '' Science Fantasy''. The story revolves about the unintended consequences of using time travel to study dinosaurs. The story was included in the 2005 anthology ''The Best Time Travel Stories of the 20th Century''. The title matches Sir Arthur Eddington's second law of thermodynamics. Plot The story follows a group of scientists, two geologists (Barton and Davis) and a palaeontologist (Fowler), who are excavating dinosaur footprints. They come across two physicists (Barnes and Henderson) who are investigating a strange liquid that exhibits negentropy, which Davis describes as being akin to "Time's Arrow" as "Any clock you care to mention – a pendulum for instance – might just as easily run forward as backward. But entropy is a strictly one-way affair – it's always increasing with the passage of time. Hence the expression, 'Time ...
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Arthur C
Arthur is a common male given name of Brythonic origin. Its popularity derives from it being the name of the legendary hero King Arthur. The etymology is disputed. It may derive from the Celtic ''Artos'' meaning “Bear”. Another theory, more widely believed, is that the name is derived from the Roman clan '' Artorius'' who lived in Roman Britain for centuries. A common spelling variant used in many Slavic, Romance, and Germanic languages is Artur. In Spanish and Italian it is Arturo. Etymology The earliest datable attestation of the name Arthur is in the early 9th century Welsh-Latin text ''Historia Brittonum'', where it refers to a circa 5th to 6th-century Briton general who fought against the invading Saxons, and who later gave rise to the famous King Arthur of medieval legend and literature. A possible earlier mention of the same man is to be found in the epic Welsh poem ''Y Gododdin'' by Aneirin, which some scholars assign to the late 6th century, though this is still a ...
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Negentropy
In information theory and statistics, negentropy is used as a measure of distance to normality. The concept and phrase "negative entropy" was introduced by Erwin Schrödinger in his 1944 popular-science book ''What is Life?'' Later, Léon Brillouin shortened the phrase to ''negentropy''. In 1974, Albert Szent-Györgyi proposed replacing the term ''negentropy'' with ''syntropy''. That term may have originated in the 1940s with the Italian mathematician Luigi Fantappiè, who tried to construct a unified theory of biology and physics. Buckminster Fuller tried to popularize this usage, but ''negentropy'' remains common. In a note to ''What is Life?'' Schrödinger explained his use of this phrase. Information theory In information theory and statistics, negentropy is used as a measure of distance to normality. Out of all distributions with a given mean and variance, the normal or Gaussian distribution is the one with the highest entropy. Negentropy measures the difference in entrop ...
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1950 Short Stories
Year 195 ( CXCV) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Scrapula and Clemens (or, less frequently, year 948 ''Ab urbe condita''). The denomination 195 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Septimius Severus has the Roman Senate deify the previous emperor Commodus, in an attempt to gain favor with the family of Marcus Aurelius. * King Vologases V and other eastern princes support the claims of Pescennius Niger. The Roman province of Mesopotamia rises in revolt with Parthian support. Severus marches to Mesopotamia to battle the Parthians. * The Roman province of Syria is divided and the role of Antioch is diminished. The Romans annexed the Syrian cities of Edessa and Nisibis. Severus re-establish his head ...
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Short Stories By Arthur C
Short may refer to: Places * Short (crater), a lunar impact crater on the near side of the Moon * Short, Mississippi, an unincorporated community * Short, Oklahoma, a census-designated place People * Short (surname) * List of people known as the Short Arts, entertainment, and media * Short film, a cinema format (also called film short or short subject) * Short story, prose generally readable in one sitting * ''The Short-Timers'', a 1979 semi-autobiographical novel by Gustav Hasford, about military short-timers in Vietnam Brands and enterprises * Short Brothers, a British aerospace company * Short Brothers of Sunderland, former English shipbuilder Computing and technology * Short circuit, an accidental connection between two nodes of an electrical circuit * Short integer, a computer datatype Finance * Short (finance), stock-trading position * Short snorter, a banknote signed by fellow travelers, common during World War II Foodstuffs * Short pastry, one which is rich in butt ...
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Starmont House
Thaddeus Maxim Eugene (Ted) Dikty (June 16, 1920 – October 11, 1991) was an American editor who also played a role as one of the earliest science fiction anthologists, and as a publisher. Early career In 1947, Dikty joined Shasta Publishers as managing editor. With E. F. Bleiler he started the first "Best of the Year" science fiction anthologies, called ''The Best Science Fiction'', which ran from 1949 until 1957. In 1953, he married writer Julian May, whom he had met at a science fiction convention in Ohio. Both of them worked for Chicago-area publishers; in 1957 the two started Publication Associates, an editorial service which created books (from writing to completion of bound copies) for specialty children's publishers who sold primarily to the school and library markets: May did the writing, and Dikty served as designer and producer. In the early 1970s Dikty and partners started a small press, FAX Collector's Editions, which reprinted selected pulp-era (and earlier ...
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Jack McDevitt
Jack McDevitt (born April 14, 1935) is an American science fiction author whose novels frequently deal with attempts to make contact with alien races, and with archaeology or xenoarchaeology. Most of his books follow either superluminal pilot Priscilla "Hutch" Hutchins or galactic relic hunters Alex Benedict and Chase Kolpath. McDevitt has received numerous nominations for Hugo, Nebula, and John W. Campbell awards. '' Seeker'' won the 2006 Nebula Award for Best Novel. McDevitt's first published story was "The Emerson Effect" in ''The Twilight Zone Magazine'' in 1981. Biography McDevitt went to La Salle University, where a short story of his won the annual ''Freshman Short Story Contest'' and was published in the school's literary magazine, ''Four Quarters''. As McDevitt explained in an interview: McDevitt received a master's degree in literature from Wesleyan University in 1971. He returned to writing when his wife, Maureen, encouraged him to try his hand at it in 1980. , McDe ...
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Reach For Tomorrow
''Reach for Tomorrow'' is a 1956 collection of science fiction short stories by British writer Arthur C. Clarke. All the stories originally appeared in a number of different publications. Contents This collection includes: *"Preface" *"Rescue Party" *"A Walk in the Dark" *"The Forgotten Enemy" *" Technical Error" *"The Parasite" *"The Fires Within" *" The Awakening" *"Trouble With the Natives" *" The Curse" *"Time's Arrow" *" Jupiter Five" *" The Possessed" Reception ''Galaxy'' reviewer Floyd C. Gale described the collection as "an excellent cross-section of the art of one of science fiction's foremost exponents." Anthony Boucher, however, characterized most of the shorter pieces as inferior work, excluded from Clarke's previous collection, but praised two (unspecified) novelettes as "uniquely authentic Clarke.""Recommended Reading," ''F&SF ''The Magazine of Fantasy & Science Fiction'' (usually referred to as ''F&SF'') is a U.S. fantasy fiction magazine, fantasy and science ...
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American Museum Of Natural History
The American Museum of Natural History (abbreviated as AMNH) is a natural history museum on the Upper West Side of Manhattan in New York City. In Theodore Roosevelt Park, across the street from Central Park, the museum complex comprises 26 interconnected buildings housing 45 permanent exhibition halls, in addition to a planetarium and a library. The museum collections contain over 34 million specimens of plants, animals, fossils, minerals, rocks, meteorites, human remains, and human cultural artifacts, as well as specialized collections for frozen tissue and genomic and astrophysical data, of which only a small fraction can be displayed at any given time. The museum occupies more than . AMNH has a full-time scientific staff of 225, sponsors over 120 special field expeditions each year, and averages about five million visits annually. The AMNH is a private 501(c)(3) organization. Its mission statement is: "To discover, interpret, and disseminate—through scientific research and ...
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Fossil Track
A fossil track or ichnite (Greek "''ιχνιον''" (''ichnion'') – a track, trace or footstep) is a fossilized footprint. This is a type of trace fossil. A fossil trackway is a sequence of fossil tracks left by a single organism. Over the years, many ichnites have been found, around the world, giving important clues about the behaviour (and foot structure and stride) of the animals that made them. For instance, multiple ichnites of a single species, close together, suggest 'herd' or 'pack' behaviour of that species. Combinations of footprints of different species provide clues about the interactions of those species. Even a set of footprints of a single animal gives important clues, as to whether it was bipedal or quadrupedal. In this way, it has been suggested that some pterosaurs, when on the ground, used their forelimbs in an unexpected quadrupedal action. Special conditions are required, in order to preserve a footprint made in soft ground (such as an alluvial plain or a f ...
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Science Fantasy (magazine)
''Science Fantasy'', which also appeared under the titles ''Impulse'' and ''SF Impulse'', was a British fantasy and science fiction magazine, launched in 1950 by Nova Publications as a companion to Nova's ''New Worlds''. Walter Gillings was editor for the first two issues, and was then replaced by John Carnell, the editor of ''New Worlds'', as a cost-saving measure. Carnell edited both magazines until Nova went out of business in early 1964. The titles were acquired by Roberts & Vinter, who hired Kyril Bonfiglioli to edit ''Science Fantasy''; Bonfiglioli changed the title to ''Impulse'' in early 1966, but the new title led to confusion with the distributors and sales fell, though the magazine remained profitable. The title was changed again to ''SF Impulse'' for the last few issues. ''Science Fantasy'' ceased publication the following year, when Roberts & Vinter came under financial pressure after their printer went bankrupt. Gillings had an inventory of material that he had ac ...
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Arrow Of Time
The arrow of time, also called time's arrow, is the concept positing the "one-way direction" or " asymmetry" of time. It was developed in 1927 by the British astrophysicist Arthur Eddington, and is an unsolved general physics question. This direction, according to Eddington, could be determined by studying the organization of atoms, molecules, and bodies, and might be drawn upon a four-dimensional relativistic map of the world ("a solid block of paper"). Physical processes at the microscopic level are believed to be either entirely or mostly time-symmetric: if the direction of time were to reverse, the theoretical statements that describe them would remain true. Yet at the macroscopic level it often appears that this is not the case: there is an obvious direction (or ''flow'') of time. Overview The symmetry of time (T-symmetry) can be understood simply as the following: if time were perfectly symmetrical, a video of real events would seem realistic whether played forward ...
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Arthur Eddington
Sir Arthur Stanley Eddington (28 December 1882 – 22 November 1944) was an English astronomer, physicist, and mathematician. He was also a philosopher of science and a populariser of science. The Eddington limit, the natural limit to the luminosity of stars, or the radiation generated by accretion onto a compact object, is named in his honour. Around 1920, he foreshadowed the discovery and mechanism of nuclear fusion processes in stars, in his paper "The Internal Constitution of the Stars".The Internal Constitution of the Stars A. S. Eddington The Scientific Monthly Vol. 11, No. 4 (Oct., 1920), pp. 297–303 At that time, the source of stellar energy was a complete mystery; Eddington was the first to correctly speculate that the source was fusion of hydrogen into helium. Eddington wrote a number of articles that announced and explained Einstein's theory of general relativity to the English-speaking world. World War I had severed many lines of scientific communication, and ne ...
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