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Thursday, August 16, 2018

Science fiction

From Wikipedia, the free encyclopedia

Martian invasion from H. G. Wells' The War of the Worlds

Science fiction (often shortened to Sci-Fi or SF) is a genre of speculative fiction, typically dealing with imaginative concepts such as advanced science and technology, spaceflight, time travel, and extraterrestrial life. Science fiction often explores the potential consequences of scientific and other innovations, and has been called a "literature of ideas".

Definitions

Cover of Imagination, August 1958

"Science fiction" is difficult to define, as it includes a wide range of subgenres and themes. James Blish wrote: "Wells used the term originally to cover what we would today call ‘hard’ science fiction, in which a conscientious attempt to be faithful to already known facts (as of the date of writing) was the substrate on which the story was to be built, and if the story was also to contain a miracle, it ought at least not to contain a whole arsenal of them."[3]

Isaac Asimov said: "Science fiction can be defined as that branch of literature which deals with the reaction of human beings to changes in science and technology."[4] According to Robert A. Heinlein, "a handy short definition of almost all science fiction might read: realistic speculation about possible future events, based solidly on adequate knowledge of the real world, past and present, and on a thorough understanding of the nature and significance of the scientific method."[5]

Lester del Rey wrote, "Even the devoted aficionado—or fan—has a hard time trying to explain what science fiction is", and that the reason for there not being a "full satisfactory definition" is that "there are no easily delineated limits to science fiction."[6] Author and editor Damon Knight summed up the difficulty, saying "science fiction is what we point to when we say it",[7] while author Mark C. Glassy argues that the definition of science fiction is like the definition of pornography: you do not know what it is, but you know it when you see it.[8]

"Sci-Fi"

Forrest J Ackerman is credited with first using the term "Sci-Fi" (analogous to the then-trendy "hi-fi") in 1954.[9] as science fiction entered popular culture, writers and fans active in the field came to associate the term with low-budget, low-tech "B-movies" and with low-quality pulp science fiction. By the 1970s, critics within the field such as Knight and Terry Carr were using sci-fi to distinguish hack-work from serious science fiction.[13] Peter Nicholls writes that "SF" (or "sf") is "the preferred abbreviation within the community of sf writers and readers."[14]

History

Science fiction had its beginnings in the time when the line between myth and fact was blurred. Written in the 2nd century AD by the Hellenized Syrian satirist Lucian, A True Story contains many themes and tropes that are characteristic of modern science fiction, including travel to other worlds, extraterrestrial lifeforms, interplanetary warfare, and artificial life. Some consider it the first science fiction novel.[15] Some of the stories from The Arabian Nights,[16][17] along with the 10th century The Tale of the Bamboo Cutter[17] and Ibn al-Nafis's 13th century Theologus Autodidactus[18] also contain elements of science fiction.

Products of the Age of Reason and the development of modern science itself, Johannes Kepler's Somnium (1620–1630), Francis Bacon's The New Atlantis (1627),[19] Cyrano de Bergerac's Comical History of the States and Empires of the Moon (1657) and The States and Empires of the Sun (1662), Margaret Cavendish's "The Blazing World" (1666),[20] Jonathan Swift's Gulliver's Travels (1726), Ludvig Holberg's novel Nicolai Klimii Iter Subterraneum (1741) and Voltaire's Micromégas (1752) are some of the first true science fantasy works.[21][22] Isaac Asimov and Carl Sagan considered Somnium the first science fiction story. It depicts a journey to the Moon and how the Earth's motion is seen from there.[23]

Following the 18th-century development of the novel as a literary form, Mary Shelley's books Frankenstein (1818) and The Last Man (1826) helped define the form of the science fiction novel. Brian Aldiss has argued that Frankenstein was the first work of science fiction.[24] Edgar Allan Poe wrote several stories considered science fiction, including one about a trip to the Moon.[25][26] Jules Verne was noted for his attention to detail and scientific accuracy, especially Twenty Thousand Leagues Under the Sea (1870), which predicted the modern nuclear submarine.[27][28][29][30] In 1887 the novel El anacronópete by Spanish author Enrique Gaspar y Rimbau introduced the first time machine.


Many critics consider H. G. Wells one of science fiction's most important authors.[33][34] Brian Aldiss called him "the Shakespeare of science fiction”.[35] His most notable science fiction works include The Time Machine (1895), The Island of Doctor Moreau (1896), The Invisible Man (1897), and The War of the Worlds (1898). His science fiction imagined time travel, alien invasion, invisibility, and biological engineering. In his non-fiction futurologist works he predicted the advent of airplanes, military tanks, space travel, nuclear weapons, satellite television and something resembling the World Wide Web.[36]

In 1912 Edgar Rice Burroughs published A Princess of Mars, the first of his three-decade-long planetary romance series of Barsoom novels, set on Mars and featuring John Carter as the hero.[37]

In 1926 Hugo Gernsback published the first American science fiction magazine, Amazing Stories, in which he wrote:
By 'scientifiction' I mean the Jules Verne, H. G. Wells and Edgar Allan Poe type of story—a charming romance intermingled with scientific fact and prophetic vision... Not only do these amazing tales make tremendously interesting reading—they are always instructive. They supply knowledge... in a very palatable form... New adventures pictured for us in the scientifiction of today are not at all impossible of realization tomorrow... Many great science stories destined to be of historical interest are still to be written... Posterity will point to them as having blazed a new trail, not only in literature and fiction, but progress as well.[38][39][40]
In 1928 E. E. "Doc" Smith’s first published work, The Skylark of Space written in collaboration with Lee Hawkins Garby, appeared in Amazing Stories. It is often called the first great space opera.[41] In 1928 Philip Francis Nowlan's original Buck Rogers story, Armageddon 2419, appeared in Amazing Stories. This was followed by a Buck Rogers comic strip, the first serious science fiction comic.[42]

In 1937 John W. Campbell became editor of Astounding Science Fiction, an event which is sometimes considered the beginning of the Golden Age of Science Fiction characterized by stories celebrating scientific achievement and progress.[43] In 1942, Isaac Asimov started his Foundation series, which chronicles the rise and fall of galactic empires and introduced psychohistory.[44][45] The "Golden Age" is often said to have ended in 1946, but sometimes the late 1940s and the 1950s are included.[46]

Theodore Sturgeon’s 1953 novel More Than Human explored possible future human evolution.[47][48][49] In 1957 Andromeda: A Space-Age Tale by the Russian writer and paleontologist Ivan Yefremov presented a view of a future interstellar communist civilization and is considered one of the most important Soviet science fiction novels.[50][51] In 1959 Robert A. Heinlein's Starship Troopers marked a departure from his earlier juvenile stories and novels.[52] It is one of the first and most influential examples of military science fiction,[53][54] and introduced the concept of powered armor exoskeletons.[55][56][57] The German space opera series Perry Rhodan, by various authors, started in 1961 with an account of the first Moon landing and has since expanded to the entire Universe and billions of years; becoming the most popular science fiction book series of all time.[58]

In the 1960s and 1970s the New Wave movement in science fiction developed out of soft science fiction. New Wave authors were known for their embrace of a high degree of experimentation, both in form and in content, and a highbrow and self-consciously "literary" or artistic sensibility;[21][59][60] In 1961 Solaris by Stanisław Lem was published in Poland.[61] The novel dealt with the theme of human limitations as its characters attempted to study a seemingly intelligent ocean on a newly discovered planet.[62][63] 1965's Dune by Frank Herbert featured a much more complex and detailed imagined future society than had been common in science fiction before.[64] In 1968 Phillip K. Dick’s best-known novel Do Androids Dream of Electric Sheep? was published. It is the literary source of the film Blade Runner.[65] 1969’s The Left Hand of Darkness by Ursula K. Le Guin was set on a planet in which the inhabitants have no fixed gender. It is one of the most influential examples of social science fiction, feminist science fiction, and anthropological science fiction.[66][67][68]

In 1976 C. J. Cherryh published Gate of Ivrel and Brothers of Earth, which began her Alliance-Union universe future history series.[69][70][71] In 1979 Science Fiction World began publication in the People's Republic of China.[72] It dominates the Chinese science fiction magazine market, at one time claiming a circulation of 300,000 copies per issue, with an estimate of 3-5 readers per copy (giving it a total readership of at least 1 million) making it the world's most popular science fiction periodical.[73]

In 1984 William Gibson’s first novel Neuromancer helped popularize cyberpunk, and the word "cyberspace" -- a term he coined in his 1982 short story Burning Chrome.[74][75][76] In 1986 Shards of Honor by Lois McMaster Bujold began her Vorkosigan Saga.[77][78] 1992’s Snow Crash by Neal Stephenson predicted immense social upheaval due to the information revolution.[79] In 2007 Liu Cixin's novel, The Three-Body Problem, was published in China. It was translated into English by Ken Liu and published by Tor Books in 2014, and won the 2015 Hugo Award for Best Novel.[80] Liu was the first Asian writer to win "Best Novel."[81]

Emerging themes in late Twentieth and early Twenty-first century science fiction include environmental issues, the implications of the global Internet and the expanding information universe, questions about biotechnology and nanotechnology, as well as a post-Cold War interest in post-scarcity societies. Recent trends and sub-genres include steampunk,[82] biopunk,[83][84] and mundane science fiction.[85][86]

Film

The Maschinenmensch from Metropolis

The first known science fiction film is 1902's A Trip to the Moon, directed by French filmmaker Georges Méliès.[87] It was profoundly influential on later filmmakers, bringing creativity to the cinematic medium and offering fantasy for pure entertainment, a rare goal in film at the time. In addition, Méliès's innovative editing and special effects techniques were widely imitated and became important elements of the medium.[88] The film also spurred on the development of cinematic science fiction and fantasy by demonstrating that scientific themes worked on the screen and that reality could be transformed by the camera.[87][89]

1927's Metropolis, directed by Fritz Lang, is the first feature-length science fiction film.[90] Though not well received in its time, it is now considered a great and influential film.[91][92][93]

In 1954 Godzilla, directed by Ishirō Honda, began the kaiju subgenre of science fiction film, which feature large creatures of any form, usually attacking a major city or engaging other monsters in battle.[94][95]

1968's 2001: A Space Odyssey, directed by Stanley Kubrick and based on the work of Arthur C. Clarke, rose above the mostly B-movie offerings up to that time in scope and quality and greatly influenced later science fiction films.[96][97][98][99] That same year Planet of the Apes, directed by Franklin J. Schaffner and based on the 1963 French novel La Planète des Singes by Pierre Boulle, was also popular and critically acclaimed for its vivid depiction of a post-apocalyptic world in which intelligent apes dominate humans.[100]

In 1977 George Lucas began the Star Wars film series with Star Wars: Episode IV – A New Hope. The series went on to become a worldwide popular culture phenomenon,[101] and the third highest-grossing film series.[102] From the 1980s science fiction films along with fantasy, horror, and superhero films have dominated Hollywood's big-budget productions.[103] Science fiction films often “crossover” with other genres including animation (Wall-E), gangster (Sky Racket), Western (Serenity), comedy (Spaceballs), war (Enemy Mine), sports (Rollerball), mystery (Minority Report), film noir (Blade Runner), and romantic comedy (Eternal Sunshine of the Spotless Mind).[104] Science fiction action films feature science fiction elements weaved into action film premises.[105]

Television

Don Hastings (left) and Al Hodge (right) from Captain Video and His Video Rangers

Science fiction and television have always had a close relationship. Television or television-like technologies frequently appeared in science fiction long before television itself became widely available in the late 1940s and early 1950s; perhaps most famously in George Orwell’s Nineteen Eighty-Four.[106] The first known science fiction television program was produced by the BBC's pre-war BBC Television service. On 11 February 1938 a thirty-five-minute adapted extract of the play RUR, written by the Czech playwright Karel Čapek, was broadcast live from the BBC's Alexandra Palace studios.[107] The first popular science fiction program on American television was the children's adventure serial Captain Video and His Video Rangers, which ran from June 1949 to April 1955.[108]

The Twilight Zone, produced and narrated by Rod Serling, who also wrote or co-wrote most of the episodes, ran from 1959 to 1964. It featured fantasy and horror as well as science fiction, with each episode being a complete story.[109][110] Critics have ranked it as one of the best TV programs of any genre.[111][112] The Jetsons, while intended as comedy and only running for one season (1962-1963), predicted many inventions now in common use: flatscreen television, newspapers on a computer-like screen, computer viruses, video chat, tanning beds, home treadmills and more.[113]

In 1963 the time travel themed Doctor Who premiered on BBC Television. The original series ran until 1989 and was revived in 2005. It has been extremely popular worldwide and has greatly influenced later TV science fiction programs, as well as popular culture.[114][115] Star Trek, produced by Gene Roddenberry, premiered in 1966 on NBC Television and ran through the 1969 season. It combined elements of space opera and space Western. Although only mildly successful it gained popularity through later syndication and eventually spawned a very popular and influential franchise through films, later programs, and novels; as well as by intense fan interest.[116][117][118] Other programs in the 1960s included The Prisoner,[119] The Outer Limits,[120] and Lost in Space.

In 1987 Star Trek: The Next Generation began a torrent of new shows, including three further Star Trek continuation shows (Deep Space 9, Voyager and Enterprise) and Babylon 5.[123] Red Dwarf, a comic science fiction series aired on BBC Two between 1988 and 1999, and on Dave since 2009, gaining a cult following.[124] To date, eleven full series of the show plus one "special" miniseries have aired. The latest series, dubbed Red Dwarf XII, started airing in October 2017.[125] The X-Files, which featured UFOs and conspiracy theories, was created by Chris Carter and broadcast by Fox Broadcasting Company from 1993 to 2002.[126][127] Stargate, a film about ancient astronauts and interstellar teleportation, was released in 1994. Stargate SG-1 premiered in 1997 and ran for 10 seasons. Spin-off series included Stargate Infinity, Stargate Atlantis, and Stargate Universe.[128]

Influence

Science fiction’s great rise in popularity in the first half of the twentieth century was closely tied to the respect paid to science at that time, as well as the rapid pace of technological innovation and new inventions.[129] Science fiction has almost always predicted scientific and technological progress. Some works predict this leading to improvements in life and society, for instance the stories of Arthur C. Clarke and the Star Trek series. While others warn about possible negative consequences, for instance H.G. Wells' The Time Machine and Aldous Huxley’s Brave New World.[130]

The National Science Foundation has conducted surveys of "Public Attitudes and Public Understanding" of "Science Fiction and Pseudoscience."[131] They write that "Interest in science fiction may affect the way people think about or relate to science....one study found a strong relationship between preference for science fiction novels and support for the space program...The same study also found that students who read science fiction are much more likely than other students to believe that contacting extraterrestrial civilizations is both possible and desirable."[132]

Sense of wonder

Science fiction is often said to generate a "sense of wonder." Science fiction editor and critic David Hartwell writes: "Science fiction’s appeal lies in combination of the rational, the believable, with the miraculous. It is an appeal to the sense of wonder."[133] Isaac Asimov in 1967 commenting on the changes then occurring in SF wrote: "And because today’s real life so resembles day-before-yesterday’s fantasy, the old-time fans are restless. Deep within, whether they admit it or not, is a feeling of disappointment and even outrage that the outer world has invaded their private domain. They feel the loss of a 'sense of wonder' because what was once truly confined to “wonder” has now become prosaic and mundane."[134]

As protest literature

Science fiction has sometimes been used as a means of social protest. James Cameron’s film Avatar was intended as a protest against imperialism, and specifically against the European colonization of the Americas.[135] Its images were used by, among others, Palestinians in their protest against Israel.[136]

Robots, artificial humans, human clones, intelligent computers, and their possible conflicts with humans has been a major theme of science fiction since the publication of Frankenstein. Some critics have seen this as reflecting authors’ concerns over the social alienation seen in modern society.[137]

Feminist science fiction poses questions about social issues such as how society constructs gender roles, the role reproduction plays in defining gender and the unequal political and personal power of men over women. Some of the most notable feminist science fiction works have illustrated these themes using utopias to explore a society in which gender differences or gender power imbalances do not exist, or dystopias to explore worlds in which gender inequalities are intensified, thus asserting a need for feminist work to continue.[138]

Libertarian science fiction focuses on the politics and the social order implied by right libertarian philosophies with an emphasis on individualism and private property, and in some cases anti-statism.[139]

Climate fiction, or "cli-fi" deals with issues concerning climate change and global warming.[140][141] University courses on literature and environmental issues may include climate change fiction in their syllabi,[142] as well as it being discussed by the media, outside of SF fandom.[143]

Comic science fiction often satirizes and criticizes present-day society, as well as sometimes making fun of the conventions and cliches of serious science fiction.[144][145]

As serious literature

Respected authors of main-stream literature have written science fiction. Mary Shelley wrote a number of science fiction novels including Frankenstein, and is considered a major writer of the Romantic Age.[146] Aldous Huxley’s Brave New World (1932) is often listed as one of England’s most important novels, both for its criticism of modern culture and its prediction of future trends including reproductive technology and psychological manipulation.[147][148][149][150] Doris Lessing, who was later awarded the Nobel Prize in literature, wrote a series of SF novels, Canopus in Argos, which depict the efforts of more advanced species and civilizations to influence those less advanced including humans on Earth.[151][152][153][154] Kurt Vonnegut was a highly respected American author whose works contain science fiction premises or themes.[155][156][157] Science fiction authors whose works are considered to be serious literature include Ray Bradbury,[158] Arthur C. Clarke (especially for Childhood's End),[159][160] and Paul Myron Anthony Linebarger, writing under the name Cordwainer Smith.[161]

In her much reprinted essay "Science Fiction and Mrs Brown,"[162] Ursula K. Le Guin first asks: "Can a science fiction writer write a novel?"; and answers: "I believe that all novels, ... deal with character, and that it is to express character – not to preach doctrines, sing songs, or celebrate the glories of the British Empire, that the form of the novel, so clumsy, verbose, and undramatic, so rich, elastic, and alive, has been evolved ... The great novelists have brought us to see whatever they wish us to see through some character. Otherwise they would not be novelists, but poets, historians, or pamphleteers."

Tom Shippey asks: "What is its relationship to fantasy fiction, is its readership still dominated by male adolescents, is it a taste which will appeal to the mature but non-eccentric literary mind?"[163] He compares George Orwell's Coming Up for Air with Frederik Pohl and C. M. Kornbluth's The Space Merchants and concludes that the basic building block and distinguishing feature of a science fiction novel is the presence of the novum, a term Darko Suvin adapts from Ernst Bloch and defines as "a discrete piece of information recognizable as not-true, but also as not-unlike-true, not-flatly- (and in the current state of knowledge) impossible."[164]

Orson Scott Card, best known for his 1985 science fiction novel Ender's Game and also an author of non-SF fiction, has postulated that in science fiction the message and intellectual significance of the work is contained within the story itself and, therefore, there need not be stylistic gimmicks or literary games; but that some writers and critics confuse clarity of language with lack of artistic merit. In Card's words: "...a great many writers and critics have based their entire careers on the premise that anything that the general public can understand without mediation is worthless drivel. [...] If everybody came to agree that stories should be told this clearly, the professors of literature would be out of a job, and the writers of obscure, encoded fiction would be, not honored, but pitied for their impenetrability."[165]

Science fiction author and physicist Gregory Benford has declared that: "SF is perhaps the defining genre of the twentieth century, although its conquering armies are still camped outside the Rome of the literary citadels."[166] Jonathan Lethem in an essay published in the Village Voice entitled "Close Encounters: The Squandered Promise of Science Fiction" suggests that the point in 1973 when Thomas Pynchon's Gravity's Rainbow was nominated for the Nebula Award and was passed over in favor of Arthur C. Clarke's Rendezvous with Rama stands as "a hidden tombstone marking the death of the hope that SF was about to merge with the mainstream."[167] Among the responses to Lethem was one from the editor of the Magazine of Fantasy and Science Fiction who asked: "When is it [the SF genre] ever going to realize it can't win the game of trying to impress the mainstream?"[168]

David Barnett has remarked:[169] "The ongoing, endless war between "literary" fiction and "genre" fiction has well-defined lines in the sand. Genre's foot soldiers think that literary fiction is a collection of meaningless but prettily drawn pictures of the human condition. The literary guard consider genre fiction to be crass, commercial, whizz-bang potboilers. Or so it goes." Barnett has said that there are books such as The Road by Cormac McCarthy, Cloud Atlas by David Mitchell, The Gone-Away World by Nick Harkaway, The Stone Gods by Jeanette Winterson and Oryx and Crake by Margaret Atwood, which use recognizable science fiction tropes, but whose authors and publishers do not market them as science fiction.[170]

Elements

A person reads from a futuristic wraparound display screen.
Science fiction elements can include:

Classification

Hard science fiction

Twenty Thousand Leagues Under the Sea by Jules Verne, one of the earliest examples of hard science fiction.

Hard science fiction is characterized by rigorous attention to accurate detail in the natural sciences, especially physics, astrophysics, and chemistry, biology or on accurately depicting worlds that more advanced technology may make possible. Some hard SF authors have distinguished themselves as working scientists, including Gregory Benford, Fred Hoyle, Geoffrey A. Landis, David Brin,[180] and Robert L. Forward, while mathematician authors include Rudy Rucker and Vernor Vinge. Other noteworthy hard SF authors include Isaac Asimov, Arthur C. Clarke, Hal Clement, Greg Bear, Larry Niven, Robert J. Sawyer, Stephen Baxter, Alastair Reynolds, Charles Sheffield, Ben Bova, Kim Stanley Robinson, Anne McCaffrey, Andy Weir and Greg Egan.

Soft science fiction

Mary Shelly's Frankenstein: or, The Modern Prometheus, one of the earliest examples of soft science fiction

The description "soft science fiction" may describe works based on social sciences such as psychology, economics, political science, sociology, and anthropology. Noteworthy writers in this category include Ursula K. Le Guin and Philip K. Dick.[43][181] The term can also describe stories focused primarily on character and emotion; SFWA Grand Master Ray Bradbury was an acknowledged master of this art.[182] The Eastern Bloc produced a large quantity of social science fiction, including works by Polish authors Stanislaw Lem and Janusz Zajdel, as well as Soviet authors such as the Strugatsky brothers, Kir Bulychov, Yevgeny Zamyatin and Ivan Yefremov.[183]

Community

Authors

Science fiction is being written worldwide by a diverse population of authors. According to 2013 statistics by the science fiction publisher Tor Books, men outnumber women by 78% to 22% among submissions to the publisher.[184] A controversy about voting slates in the 2015 Hugo Awards highlighted tensions in the science fiction community between a trend of increasingly diverse works and authors being honored by awards, and a backlash by groups of authors and fans who preferred what they considered more traditional science fiction.[185]

Awards

Among the most respected awards for science fiction are the Hugo Award, presented by the World Science Fiction Society at Worldcon; the Nebula Award, presented by SFWA and voted on by the community of authors; and the John W. Campbell Memorial Award for Best Science Fiction Novel and Theodore Sturgeon Memorial Award for short fiction. One notable award for science fiction films is the Saturn Award. It is presented annually by The Academy of Science Fiction, Fantasy, and Horror Films.

There are national awards, like Canada's Prix Aurora Awards, regional awards, like the Endeavour Award presented at Orycon for works from the Pacific Northwest, special interest or subgenre awards like the Chesley Award for art or the World Fantasy Award for fantasy. Magazines may organize reader polls, notably the Locus Award.

Conventions, clubs, and organizations

Pamela Dean reading at Minicon

Conventions (in fandom, shortened as "cons"), are held in cities around the world, catering to a local, regional, national, or international membership. General-interest conventions cover all aspects of science fiction, while others focus on a particular interest like media fandom, filking, etc. Most are organized by volunteers in non-profit groups, though most media-oriented events are organized by commercial promoters. The convention's activities are called the program, which may include panel discussions, readings, autograph sessions, costume masquerades, and other events. Activities occur throughout the convention that are not part of the program. These commonly include a dealer's room, art show, and hospitality lounge (or "con suites").[186]

Conventions may host award ceremonies; Worldcons present the Hugo Awards each year. SF societies, referred to as "clubs" except in formal contexts, form a year-round base of activities for science fiction fans. They may be associated with an ongoing science fiction convention, or have regular club meetings, or both. Most groups meet in libraries, schools and universities, community centers, pubs or restaurants, or the homes of individual members. Long-established groups like the New England Science Fiction Association and the Los Angeles Science Fantasy Society have clubhouses for meetings and storage of convention supplies and research materials.[187] The Science Fiction and Fantasy Writers of America (SFWA) was founded by Damon Knight in 1965 as a non-profit organization to serve the community of professional science fiction authors.

Fandom

Science fiction fandom is the "community of the literature of ideas... the culture in which new ideas emerge and grow before being released into society at large."[2] Members of this community, "fans", are in contact with each other at conventions or clubs, through print or online fanzines, or on the Internet using web sites, mailing lists, and other resources. SF fandom emerged from the letters column in Amazing Stories magazine. Soon fans began writing letters to each other, and then grouping their comments together in informal publications that became known as fanzines.[189] Once they were in regular contact, fans wanted to meet each other, and they organized local clubs. In the 1930s, the first science fiction conventions gathered fans from a wider area.[190]

Fanzines and online fandom

The first science fiction fanzine, The Comet, was published in 1930.[191] Fanzine printing methods have changed over the decades, from the hectograph, the mimeograph, and the ditto machine, to modern photocopying. Distribution volumes rarely justify the cost of commercial printing. Modern fanzines are printed on computer printers or at local copy shops, or they may only be sent as email. The best known fanzine (or "'zine") today is Ansible, edited by David Langford, winner of numerous Hugo awards. Other fanzines to win awards in recent years include File 770, Mimosa, and Plokta.[192] Artists working for fanzines have risen to prominence in the field, including Brad W. Foster, Teddy Harvia, and Joe Mayhew; the Hugos include a category for Best Fan Artists.[192] The earliest organized fandom online was the SF Lovers community, originally a mailing list in the late 1970s with a text archive file that was updated regularly.[193] In the 1980s, Usenet groups greatly expanded the circle of fans online. In the 1990s, the development of the World-Wide Web exploded the community of online fandom by orders of magnitude, with thousands and then literally millions of web sites devoted to science fiction and related genres for all media.[187] Most such sites are small, ephemeral, and/or very narrowly focused, though sites like SF Site and SFcrowsnest offer a broad range of references and reviews about science fiction.

Science fiction studies

The study of science fiction, or science fiction studies, is the critical assessment, interpretation, and discussion of science fiction literature, film, new media, fandom, and fan fiction. Science fiction scholars study science fiction to better understand it and its relationship to science, technology, politics, and culture-at-large. Science fiction studies has a long history, dating back to the turn of the 20th century, but it was not until later that science fiction studies solidified as a discipline with the publication of the academic journals Extrapolation (1959), Foundation: The International Review of Science Fiction (1972), and Science Fiction Studies (1973), and the establishment of the oldest organizations devoted to the study of science fiction, the Science Fiction Research Association and the Science Fiction Foundation, in 1970. The field has grown considerably since the 1970s with the establishment of more journals, organizations, and conferences with ties to the science fiction scholarship community, and science fiction degree-granting programs such as those offered by the University of Liverpool and Kansas University.

Scholar and science fiction critic George Edgar Slusser said that science fiction "is the one real international literary form we have today, and as such has branched out to visual media, interactive media and on to whatever new media the world will invent in the 21st century... crossover issues between the sciences and the humanities are crucial for the century to come."

Wednesday, August 15, 2018

Impact of nanotechnology

From Wikipedia, the free encyclopedia

The impact of nanotechnology extends from its medical, ethical, mental, legal and environmental applications, to fields such as engineering, biology, chemistry, computing, materials science, and communications.

Major benefits of nanotechnology include improved manufacturing methods, water purification systems, energy systems, physical enhancement, nanomedicine, better food production methods, nutrition and large-scale infrastructure auto-fabrication.[1] Nanotechnology's reduced size may allow for automation of tasks which were previously inaccessible due to physical restrictions, which in turn may reduce labor, land, or maintenance requirements placed on humans.

Potential risks include environmental, health, and safety issues; transitional effects such as displacement of traditional industries as the products of nanotechnology become dominant, which are of concern to privacy rights advocates. These may be particularly important if potential negative effects of nanoparticles are overlooked.

Whether nanotechnology merits special government regulation is a controversial issue. Regulatory bodies such as the United States Environmental Protection Agency and the Health and Consumer Protection Directorate of the European Commission have started dealing with the potential risks of nanoparticles. The organic food sector has been the first to act with the regulated exclusion of engineered nanoparticles from certified organic produce, firstly in Australia and the UK,[2] and more recently in Canada, as well as for all food certified to Demeter International standards[3]

Overview

The presence of nanomaterials (materials that contain nanoparticles) is not in itself a threat. It is only certain aspects that can make them risky, in particular their mobility and their increased reactivity. Only if certain properties of certain nanoparticles were harmful to living beings or the environment would we be faced with a genuine hazard. In this case it can be called nanopollution.

In addressing the health and environmental impact of nanomaterials we need to differentiate between two types of nanostructures: (1) Nanocomposites, nanostructured surfaces and nanocomponents (electronic, optical, sensors etc.), where nanoscale particles are incorporated into a substance, material or device (“fixed” nano-particles); and (2) “free” nanoparticles, where at some stage in production or use individual nanoparticles of a substance are present. These free nanoparticles could be nanoscale species of elements, or simple compounds, but also complex compounds where for instance a nanoparticle of a particular element is coated with another substance (“coated” nanoparticle or “core-shell” nanoparticle).

There seems to be consensus that, although one should be aware of materials containing fixed nanoparticles, the immediate concern is with free nanoparticles.

Nanoparticles are very different from their everyday counterparts, so their adverse effects cannot be derived from the known toxicity of the macro-sized material. This poses significant issues for addressing the health and environmental impact of free nanoparticles.

To complicate things further, in talking about nanoparticles it is important that a powder or liquid containing nanoparticles almost never be monodisperse, but contain instead a range of particle sizes. This complicates the experimental analysis as larger nanoparticles might have different properties from smaller ones. Also, nanoparticles show a tendency to aggregate, and such aggregates often behave differently from individual nanoparticles.

Health impact

A video on the health and safety implications of nanotechnology

The health impacts of nanotechnology are the possible effects that the use of nanotechnological materials and devices will have on human health. As nanotechnology is an emerging field, there is great debate regarding to what extent nanotechnology will benefit or pose risks for human health. Nanotechnology's health impacts can be split into two aspects: the potential for nanotechnological innovations to have medical applications to cure disease, and the potential health hazards posed by exposure to nanomaterials.

Medical applications

Nanomedicine is the medical application of nanotechnology.[4] The approaches to nanomedicine range from the medical use of nanomaterials, to nanoelectronic biosensors, and even possible future applications of molecular nanotechnology. Nanomedicine seeks to deliver a valuable set of research tools and clinically helpful devices in the near future.[5][6] The National Nanotechnology Initiative expects new commercial applications in the pharmaceutical industry that may include advanced drug delivery systems, new therapies, and in vivo imaging.[7] Neuro-electronic interfaces and other nanoelectronics-based sensors are another active goal of research. Further down the line, the speculative field of molecular nanotechnology believes that cell repair machines could revolutionize medicine and the medical field.
Nanomedicine research is directly funded, with the US National Institutes of Health in 2005 funding a five-year plan to set up four nanomedicine centers. In April 2006, the journal Nature Materials estimated that 130 nanotech-based drugs and delivery systems were being developed worldwide.[8] Nanomedicine is a large industry, with nanomedicine sales reaching $6.8 billion in 2004. With over 200 companies and 38 products worldwide, a minimum of $3.8 billion in nanotechnology R&D is being invested every year.[9] As the nanomedicine industry continues to grow, it is expected to have a significant impact on the economy.

Health hazards

Nanotoxicology is the field which studies potential health risks of nanomaterials. The extremely small size of nanomaterials means that they are much more readily taken up by the human body than larger sized particles. How these nanoparticles behave inside the organism is one of the significant issues that needs to be resolved. The behavior of nanoparticles is a function of their size, shape and surface reactivity with the surrounding tissue. Apart from what happens if non-degradable or slowly degradable nanoparticles accumulate in organs, another concern is their potential interaction with biological processes inside the body: because of their large surface, nanoparticles on exposure to tissue and fluids will immediately adsorb onto their surface some of the macromolecules they encounter. The large number of variables influencing toxicity means that it is difficult to generalise about health risks associated with exposure to nanomaterials – each new nanomaterial must be assessed individually and all material properties must be taken into account. Health and environmental issues combine in the workplace of companies engaged in producing or using nanomaterials and in the laboratories engaged in nanoscience and nanotechnology research. It is safe to say that current workplace exposure standards for dusts cannot be applied directly to nanoparticle dusts.
The extremely small size of nanomaterials also means that they are much more readily taken up by the human body than larger sized particles. How these nanoparticles behave inside the body is one of the issues that needs to be resolved. The behavior of nanoparticles is a function of their size, shape and surface reactivity with the surrounding tissue. They could cause overload on phagocytes, cells that ingest and destroy foreign matter, thereby triggering stress reactions that lead to inflammation and weaken the body’s defense against other pathogens. Apart from what happens if non-degradable or slowly degradable nanoparticles accumulate in organs, another concern is their potential interaction with biological processes inside the body: because of their large surface, nanoparticles on exposure to tissue and fluids will immediately adsorb onto their surface some of the macromolecules they encounter. This may, for instance, affect the regulatory mechanisms of enzymes and other proteins.

The National Institute for Occupational Safety and Health has conducted initial research on how nanoparticles interact with the body’s systems and how workers might be exposed to nano-sized particles in the manufacturing or industrial use of nanomaterials. NIOSH currently offers interim guidelines for working with nanomaterials consistent with the best scientific knowledge.[10] At The National Personal Protective Technology Laboratory of NIOSH, studies investigating the filter penetration of nanoparticles on NIOSH-certified and EU marked respirators, as well as non-certified dust masks have been conducted.[11] These studies found that the most penetrating particle size range was between 30 and 100 nanometers, and leak size was the largest factor in the number of nanoparticles found inside the respirators of the test dummies.[12][13]

Other properties of nanomaterials that influence toxicity include: chemical composition, shape, surface structure, surface charge, aggregation and solubility,[14] and the presence or absence of functional groups of other chemicals.[15] The large number of variables influencing toxicity means that it is difficult to generalise about health risks associated with exposure to nanomaterials – each new nanomaterial must be assessed individually and all material properties must be taken into account.

Literature reviews have been showing that release of engineered nanoparticles and incurred personal exposure can happen during different work activities.[16][17][18] The situation alerts regulatory bodies to necessitate prevention strategies and regulations at nanotechnology workplaces.

Environmental impact

The environmental impact of nanotechnology is the possible effects that the use of nanotechnological materials and devices will have on the environment.[19] As nanotechnology is an emerging field, there is debate regarding to what extent industrial and commercial use of nanomaterials will affect organisms and ecosystems.

Nanotechnology's environmental impact can be split into two aspects: the potential for nanotechnological innovations to help improve the environment, and the possibly novel type of pollution that nanotechnological materials might cause if released into the environment.

Environmental applications

Green nanotechnology refers to the use of nanotechnology to enhance the environmental sustainability of processes producing negative externalities. It also refers to the use of the products of nanotechnology to enhance sustainability. It includes making green nano-products and using nano-products in support of sustainability. Green nanotechnology has been described as the development of clean technologies, "to minimize potential environmental and human health risks associated with the manufacture and use of nanotechnology products, and to encourage replacement of existing products with new nano-products that are more environmentally friendly throughout their lifecycle."[20]
Green nanotechnology has two goals: producing nanomaterials and products without harming the environment or human health, and producing nano-products that provide solutions to environmental problems. It uses existing principles of green chemistry and green engineering[21] to make nanomaterials and nano-products without toxic ingredients, at low temperatures using less energy and renewable inputs wherever possible, and using lifecycle thinking in all design and engineering stages.

Pollution

Nanopollution is a generic name for all waste generated by nanodevices or during the nanomaterials manufacturing process. Nanowaste is mainly the group of particles that are released into the environment, or the particles that are thrown away when still on their products.

Social impact

Beyond the toxicity risks to human health and the environment which are associated with first-generation nanomaterials, nanotechnology has broader societal impact and poses broader social challenges. Social scientists have suggested that nanotechnology's social issues should be understood and assessed not simply as "downstream" risks or impacts. Rather, the challenges should be factored into "upstream" research and decision-making in order to ensure technology development that meets social objectives[22]
Many social scientists and organizations in civil society suggest that technology assessment and governance should also involve public participation[23][24][25][26]

Over 800 nano-related patents were granted in 2003, with numbers increasing to nearly 19,000 internationally by 2012.[27] Corporations are already taking out broad-ranging patents on nanoscale discoveries and inventions. For example, two corporations, NEC and IBM, hold the basic patents on carbon nanotubes, one of the current cornerstones of nanotechnology. Carbon nanotubes have a wide range of uses, and look set to become crucial to several industries from electronics and computers, to strengthened materials to drug delivery and diagnostics. Carbon nanotubes are poised to become a major traded commodity with the potential to replace major conventional raw materials.[28]

Nanotechnologies may provide new solutions for the millions of people in developing countries who lack access to basic services, such as safe water, reliable energy, health care, and education. The 2004 UN Task Force on Science, Technology and Innovation noted that some of the advantages of nanotechnology include production using little labor, land, or maintenance, high productivity, low cost, and modest requirements for materials and energy. However, concerns are frequently raised that the claimed benefits of nanotechnology will not be evenly distributed, and that any benefits (including technical and/or economic) associated with nanotechnology will only reach affluent nations.[29]

Longer-term concerns center on the impact that new technologies will have for society at large, and whether these could possibly lead to either a post-scarcity economy, or alternatively exacerbate the wealth gap between developed and developing nations. The effects of nanotechnology on the society as a whole, on human health and the environment, on trade, on security, on food systems and even on the definition of "human", have not been characterized or politicized.

Regulation

Significant debate exists relating to the question of whether nanotechnology or nanotechnology-based products merit special government regulation. This debate is related to the circumstances in which it is necessary and appropriate to assess new substances prior to their release into the market, community and environment.
Regulatory bodies such as the United States Environmental Protection Agency and the Food and Drug Administration in the U.S. or the Health & Consumer Protection Directorate of the European Commission have started dealing with the potential risks posed by nanoparticles. So far, neither engineered nanoparticles nor the products and materials that contain them are subject to any special regulation regarding production, handling or labelling. The Material Safety Data Sheet that must be issued for some materials often does not differentiate between bulk and nanoscale size of the material in question and even when it does these MSDS are advisory only.

Limited nanotechnology labeling and regulation may exacerbate potential human and environmental health and safety issues associated with nanotechnology.[30] It has been argued that the development of comprehensive regulation of nanotechnology will be vital to ensure that the potential risks associated with the research and commercial application of nanotechnology do not overshadow its potential benefits.[31] Regulation may also be required to meet community expectations about responsible development of nanotechnology, as well as ensuring that public interests are included in shaping the development of nanotechnology.[32]

In "The Consumer Product Safety Commission and Nanotechnology," E. Marla Felcher suggests that the Consumer Product Safety Commission, which is charged with protecting the public against unreasonable risks of injury or death associated with consumer products, is ill-equipped to oversee the safety of complex, high-tech products made using nanotechnology.

Open-source robotics

From Wikipedia, the free encyclopedia
 
An open source iCub robot mounted on a supporting frame. The robot is 104 cm high and weighs around 22 kg

Open-source robotics (OSR) is where the physical artifacts of the subject are offered by the open design movement. This branch of robotics makes use of open-source hardware and free and open source software providing blueprints, schematics, and source code. The term usually means that information about the hardware is easily discerned so that others can make it from standard commodity components and tools—coupling it closely to the maker movement and open science.

Current systems

Open source gantry robots

Name Description Type
RepRap 3D printer robot 3D printer
Contraptor CNC plotter. plotter
FarmBot CNC-style horticulture horticulture

Open source robot arms and hands

Name Description Type
OSRA[2] Oomlout Open-source robotic arm. Robot Arm
Yale Open Hand Project[3] Customizable, 3D-printed, adaptive robotic hand from Yale University.[4] Comprehensive documentation is available but CC-BY-NC license not compatible with the Open-source hardware definition. Robot Hands
Robotarm.org Community of many partially complete robot arm projects. Robot arm
Evil minion Completed robot arm, CAD files and software available. Robot arm
Open Source Ecology Includes plans for an industrial robot arm. Robot arm

Open source mobile robots

Name Description Type
e-puck mobile robot An open-hardware, education oriented, mobile robot. education
Ardumower[5] open-source robotic lawn mower based on Arduino Mega -
Arduino Robot The Arduino Robot is the first official Arduino on wheels[6] Arduino based.
Hexy[7] Open-Source, Low-Cost Hexapod Kit[8] Hexapod
Leaf Project[9] - -
OpenROV[10] Open-source underwater robot education and exploration
Pulurobotics[11] Open-source autonomous mobile robot Education, application, able to carry heavy loads, inexpensive, ROS compatible but not using ROS.
Thymio[12] Thymio is an educative robot with two wheels and many sensors programmed with Aseba Education.
Vorpal The Hexapod[13] Vorpal is a low cost, 3D printed, MIT Scratch programmable Hexapod Robot Education.
Open-source Micro-robotic Project An open-source space swarm robot project. -
OPSORO An Open Platform for Social Robots Social Robots, Education
OSCar Open source car (e.g. for self-driving). Car

Open source aerial robots

Name Description Type
ArduPilot[14] Flying robot frameworks with hardware and software based on Arduino, an Open-source hardware platform. Quadcopter and UAV
OpenPilot Flying robot framework with hardware and software based on STM32 microcontroller
LibrePilot[15] Focuses on research and development of open-source software and hardware to be used in a variety of applications including vehicle control and stabilization. Robotics - Unmanned autonomous vehicles, Multirotor, Fixed wing, Cars
Paparazzi Project Flying robot framework with hardware and software based on the Lisa/S chip
Slugs Flying robot framework with hardware and software
PX4 autopilot Flying robot framework with hardware and software based on the STM32F427 Cortex M4 core with FPU

Open source humanoid robots

Name Description Type
iCub Backed by European Union funding and used in many universities. Humanoid
DARwIn-OP Used in ICRA and RoboCup contests Humanoid
InMoov[16] An open-hardware and open-source 3D printed life-size humanoid robot. As software MyRobotLab[17] is used. Comprehensive documentation is available but CC-BY-NC license not compatible with the Open-source hardware definition. Humanoid
Poppy-project[18] The Poppy project aims at building an Open-source humanoid platform based on robust, flexible, easy-to-use hardware and software. Excellent documentation[19] Education, Research, Humanoid
DoraBot[20] DORA Open Source Robotic Assistant, opensource general purpose service robot. Project last updated in 2012.[21] General Purpose
NimbRo-OP[22] Similar concept as DARwIn-OP with 20 DoF, but larger (95 cm height), fisheye camera, and faster onboard computer. ROS based open-source software. Used by team NimbRo for RoboCup Humanoid TeenSize soccer competitions. Humanoid robot used for playing soccer and human-robot interaction.
Tingu Open-source humanoid robot project. humanoid
DroidBot Android Robot controlled over Bluetooth by App Inventor[23] Arduino components
r-One[24] An Advanced, Low-Cost Robot for Research, Teaching, and Outreach Education
Salvius[25] Open-source humanoid robot project, made from salvaged junk parts.[26] Started in 2008, last updated May 2016. Humanoid
Vizzy[27] A humanoid on wheels for assistive robotics Humanoid

Open source assistive robots

Name Description Type
Autobed[28] Web-controlled robotic bed developed by the Healthcare Robotics Lab at Georgia Tech.[29] Robotic bed

Other

Name Description Type
LH001[30] Open Hardware Medical-Research liquid handling robot. Project last updated 2011.[31] Liquid Handling
multiplo Building system with open-source hardware, electronics, software and documentation for prototyping robots[32] -
OHMM[33] Open-hardware mobile manipulator -
Open Automaton Project[34] - -
Q.bo[35] - -
Qwerkbot[36] Simple open-source robot from Carnegie Mellon University
Sparki[37] Introductory arduino-powered robot.[38] Education
Sparky Jr. Mobile Telepresence Research Project, Est. 1994[39] -
Open Robot Hardware Open Robot Hardware is intended to serve as a resource for efforts focusing on Open and Open Source mechanical and electrical hardware, with a particular focus on projects that may be useful in robotics applications, robotics research and education.[40] Open-Source Initiative/Community
Balanduino Arduino-compatible based on Arduino.[41] Licensed under BY-NC-SA, which is not compatible with the Open-source hardware definition. Bluetooth ready. Android app. Self-balancing robot
Orb Swarm[42] Kinetic art: autonomous spherical robots exhibiting complex motion. Project last active May 2013. Open software but no comprehensive list of hardware parts. Not compatible with the Open-source hardware definition. Exhibition-
TOAZ Artistic Robot: The World First Open-Source Carbon Fiber Transformable 4 Legs Robot under CC-BY-SA It is developed base on the Adafruit Feather Development Platform. Open-Source

Open source robotics middleware

Middleware are reusable hardware and software components that can be used in many different robotics projects.

Software components

By far the most common standard software are the interconnected,
Other systems include,

Hardware components

Many open source robots make extensive use of general open-source hardware (such as Arduino, Raspberry Pi, RISCV) as well as robotics-specific sensing and control components which include:

Advantages

  • Long-term availability. Many non-open robots and components, especially at hobbyist level, are designed and sold by tiny startups which can disappear overnight, leaving customers without support. Open-source systems are guaranteed to have their designs available for ever so communities of users can, and do, continue support after the manufacturer has disappeared.
  • Avoiding lock-in. A company relying on any particular non-open component exposes itself to business risk that the supplier could ratchet up prices after they have invested time and technology building on it. Open hardware can be manufacturered by anyone, creating competition or at least the potential for competition, which both remove this risk.
  • Interchangeable software and/or hardware with common interfaces.
  • Ability to modify and fork designs more easily for customisation.
  • Scientific reproducibility - guarantees that other labs can replicate and extend work, leading to increased impact, citations and reputation for the designer.
  • Lower-cost. Costs of a robot can be decreased dramatically when all components and tools are commodities. No component seller can hold a project to ransom by ratcheting the price of a critical component, as competing suppliers can easily be interchanged.

Drawbacks

  • For commercial organisations, open-sourcing their own designs obviously means they can no longer make large profits through the traditional engineering business model of acting as the monopoly manufacturer or seller, because the open design can be manufactured and sold by anyone including direct competitors. Profit from engineering can come from three main sources: design, manufacturing, and support. As with other open source business models, commercial designers typically make profit via their association with the brand, which may still be trademarked. A valuable brand allows them to command a premium for their own manufactured products, as it can be associated with high quality and provide a quality guarantee to customers. The same brand is also used to command a premium on associated services, such as providing installation, maintenance, and integration support for the product. Again customers will typically pay more for the knowledge that this support is provided directly by the original designer, who therefore knows the product better than competitors.
  • Some customers associate open source with amateurism, the hacker community, low quality and poor support. Serious companies using this business model may need to work harder to overcome this perception by emphasising their professionalism and brand to differentiate themselves from amateur efforts.

Popularity

A first sign of the increasing popularity of building robots yourself can be found with the DIY community. What began with small competitions for remote operated vehicles (e.g. Robot combat), soon developed to the building of autonomous telepresence robots as Sparky and then true robots (being able to take decisions themselves) as the Open Automaton Project and Leaf Project. Certain commercial companies now also produce kits for making simple robots.
A recurring problem in the community has been projects, especially on Kickstarter, promising to fully open-source their hardware and then reneging on this promise once funded, in order to profit from being the sole manufacturer and seller.
Popular applications include:

Neurophilosophy

From Wikipedia, the free encyclopedia https://en.wikipedia.org/wiki/Neurophilosophy ...