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Technology in science fiction examines the possibilities and implications of new technologies. Authors have taken, or created, new innovations and technologies, and elaborated on what they might be and how they might be used. This exchange goes in both directions - sometimes the technology appears first in science fiction, then becomes reality (such as space travel) and other times the real technology comes first, and science fiction authors speculate about how it might be used, and how it might affect the human condition. Likewise, the accuracy of the technology portrayed spans a wide range - sometimes it is existing technology, sometimes it is a physically realistic portrayal of a far-out technology, and sometimes it is simply a plot device that looks scientific, but has no basis in science. Examples drawn from space travel in science fiction include: *Realistic case: Space suits. These are almost always based on existing suits, or near-term extrapolation of their capabilities. *Extrapolation: Travel within the solar system. While we cannot do this today, it violates no physical principles. *Plot device: faster-than-light drive. It is unsupported by physics as we know it, but needed for galaxy-wide plots with human lifespans. == Fictional technologies that have since been realized == Almost every new technology that becomes practical was previously used in science fiction. Here are a few examples, from a very large set: Transparent Aluminum as featured in the Star Trek universe has since become a reality〔(【引用サイトリンク】 title=Air Force testing new transparent armor )〕 as Aluminium oxynitride (ALONtm), patented in 1985, and as different from metallic aluminum as rust is from iron. Rather than being used as transparent blast shielding as in the fictional Enterprise class starships, this transparent ceramic is used, as the chemically similar (and similarly expensive) corundum has long been used, in tough windows.〔(【引用サイトリンク】 title=Air Force testing new transparent armor )〕〔(【引用サイトリンク】 title=Air Force testing new transparent armor )〕〔(【引用サイトリンク】 title=Air Force testing new transparent armor )〕 Tractor/Repulsor Beams have been realized as Laser-based Optical tweezers,〔Optical Tweezers an Introduction〕 and more recently as a pair of Bessel beams. These instruments use the radiation from the laser beam to manipulate microscopic particles in what is called an "optical trap". along the length of the beam as desired. Fictional Tractor beams have been prominently used in the Star Wars universe and in the Star Trek universe. In an early scene of Star Wars: A New Hope a large spaceship uses such a beam to seize a small one, in order to capture the protagonists. Artificial Vision/Prosthetic Eyes Visual prosthesis has been a topic of experiments since the late 20th century. Notable characters using artificial vision include all characters from the Ghost in the Shell series who use prosthetic bodies e.g. Batou's ranger eyes, Saito's left eye, and Motoko Kusanagi's artificial eyes, Geordi LaForge from the Star Trek: The Next Generation series who made use of a VISOR and later; ocular implants, RoboCop from the RoboCop series, Spike Spiegel from the Cowboy Bebop anime series, and the Illusive Man from the Mass Effect series of videogames. Tricorder The Lab-On-a-Chip Application Development Portable Test System (LOCAD-PTS) used by astronauts on the International Space Station is designed specifically to biochemical molecules with the purpose of "identifying microbes on space station services" through use of the Gram Staining Method. Though less advanced than the fictional Tricorder of the Star Trek series, the LOCAD-PTS is useful for quickly identifying bacteria and fungi on the International Space Station without having to send samples back to Earth, thus risking contamination or degradation. Fungi have proven to be a hazard if left unchecked on the space station as they managed to decompose some Russian electronics. The Tricorder featured in the Star Trek universe was capable of measuring almost anything, from the chemical composition of explosives, to the life signs of a dying humanoid. The LOCAD-PTS does not differentiate between live and dead test material yet. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Technology in science fiction」の詳細全文を読む スポンサード リンク
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