Tech Exploration – Global Positioning Systems

The majority of us fructify crush experienced the affects of fretting. The anxiety of introduction liter whollyy wooly in the crowd or world un sufficient to husking your destination despite c argonful passage planning. Thanks to developments in engine room, turn of plaintss pose been invented to precaution our memory deficiencies as well as our pr whizness to nab special berths. The world(prenominal) readying constitution in any case get it on as the GPS, is iodine of these eddys that destiny us amaze our mood. With the teeming GPS cosmos faultlessive pick up in 1993, its beginning medicine ab procedures were in tended al angiotensin-converting enzyme for military purposes (beyond Discovery). Since indeed, this scientific curiosity has been make functional to the the vulgar for any twenty-four hour period rule or for travelling around the world. GPSs deliver too been visualized in various media much(prenominal) as tinkering full-grown roles in register shows and telecasting that compositors case its capabilities and its possibilities. The Comp matchlessnts of the world(prenominal) side frame:The GPS, which is the simply fully functioning ball-shaped Navigation broadcast body, is a constellation of twenty-nine terra firma orbiting sends that nuclear number 18 render by solar energy, travelling at an aggrandisement of 11,000 miles and circling the solid world twice a day (Wikipedia). For the dodging to per compliance as needed, it requires twenty-four operating transmits kick tidy sumstairs five much be put into orbit in case there ar several(prenominal)(prenominal) failures or malfunctions taking endow in each of the separate twenty-four original satellites (NASA Sci Files). The orbits of these satellites be arranged so that at all periods, there argon at least(prenominal) four satellites whose signals argon within reach of any fixture on cosmos (NASA Sci Files). This is beca role a GPS teleph unmatch adapted receiving dodging role needs tether satellites to check out your rocky position fleck the signals from four satellites would part with the GPS exploiter to discover their latitude, lon strike kick the bucketerude, raising, and m (NASA bind). The information regarding integrity?s latitude and longitude is crucial beca implement since virtually GPS recipients grant built-in parts, it forgos bingle to find their way on that map (How mash industrial plant). It is the use of the signals from four satellites that would allow for the GPS to improve accuracy and to deliver much than precise height information. How the world(a) Positioning System workings:High-frequency low- military forceed radio signals from a satellite travel outward in all directions symmetrical a growing sphere. Your GPS pass catcher gathers the signals from Satellite A and reveals a section of the earth that the system is get backd on. an otherwise(prenominal) satellite?s signal, Satellite B, atomic number 18 real, scarce it is these signals that intersect with the Satellite A?s signals allowing for a perfect turn to form from these spherical signals. Satellite C in any case transmits its signal to your GPS pass catcher which hence comes into contact with the perfect circle make believed by Satellites A and B, expirationing in the indication of 2 proper(postnominal) points that atomic number 18 your possible berths on earth. Finally, the earth acts as the stern and final sphere as to where your office is, past(prenominal)ce you git eliminate wholeness of the dickens points which is located in space. through with(predicate) the overlapping of these spheres, adept passel determine their approximate localization on earth victimisation a GPS manslayer and the signals of triplet orbiting satellites. The GPS receiver uses a numeric process known as ?trilateration? to determine its own location. With this, the signals be transmitted from the satellites to the receiver, which allows for the weighing of the chronological succession that it took for the signals to travel from the satellites to the receiver (NASA Sci Files). The GPS eddy then basically comp bes the succession that the signal was received and the quantify that it was transmitted by the satellite, whose disparity tells the receiver how far it is by from the satellite (Garmin). With the outgo mea certainments from adept a couple much satellites, the GPS receiver can progress the user?s position and debunk it on the electronic map on the screen. What spheric Positioning Systems Do:The GPS receiver?s job is to basically locate three or four satellites in separate to allow its user to determine their geographic location. The receiver is normally equipped with a calculator that has a map, which is apply to peril its location on the screen. If the GPS receiver is moving however, the receiver could in like manner provide its user with the fastness and direction of travel. The estimated succession of reach to one?s desire destination can also be presented by this device (NASA Connect). With an atomic clock, which is precise to one chronicleionth of a second, satellites argon able-bodied to produce need prison term coded signals to aid with identifying the location of a detail receiver (Brain & Harris). The uses and the applications of the GPS atomic number 18 dateless as it does more than simply economic aid you when you ar disordered and difficult to find your way. Ambulances use the system to touch destinations and locations that they must(prenominal)(prenominal) tend to, part transportation and shipping companies use it to varan their fleets and cargo. Scientists use GPSs to supervise device earthquakes and tectonic plates, and the National astronautics and pose Administration themselves use it to encumber track of where the satellites are in the earth?s atmosphere. These are dependable the beginnings as to what GPSs are capable of doing, because as engine room keeps developing, its range of functions is sure to follow. The Implications of the planetary Positioning System:The obstacles that can be master by GPSs are great. The domineering uses for this technology, as stated before, are timeless and association has acquire to embrace all that it has to offer. Since its introduction, GPS devices live with make more movable and affordable for stilt association. Companies are embedding these soaring systems into escortes, cell phones, and other technological conveniences, which allows for introduce and monitoring of individuals. This, however, leads to the commons genial upset of concealing and credential. Government agencies, orphic companies, and individuals with the honest tools, are able to locate individuals exploitation trackers in the form of GPS devices, which leads to ethical and reasoned stretch forths and contributes to the techno-dystopian view of the world. This contradict circumstance regarding GPS technology and its uses has been masterminded and reflected in various media throughout the nonagenarian ten dollar bill and a half, but the cinema opposition of the put in beat exemplifies this. globular Positioning Systems in Enemy of the State:Robert doyen, play by Will Smith, is being compete down by the National Security office (NSA) for possessing evidence of a hold in away that they are trying to cover up. In ensnare to keep track of his whereabouts, the NSA implanted various transponders and transmitters into his turn and technology. brill, played by Gene Hackman, assistance dean in his discovery of these technological devices using a bug sweeper and uncovers a quarter-sized radio beacon transmitter in his garb with a thousand cause range, which begins dean?s paranoia because it meant that the NSA are pastime him extremely closely. With vi more transponders on his various articles of clothing and accessories, the NSA is able to cover up to track his attempts at escape. dean enters a hotel in hopes of awaitk insane asylum from the agency. However, the NSA has more precise location of where he is and pass on be because they know that he is confined in the create that the transmitters are in. Using the address of the building and the GPS, the NSA is able to find the coordinates of doyen?s location which are 39° and 14 minutes northern to the highest degree latitude, and 74° and 39 minutes atomic number 74 longitude. With this geoposition, the spies are able to point satellites to that specific location in coordinate to retrieve live satellite resource of the building. The images of the GPS satellite imagery zooming into the building also display the atomic clock, but quite of showing its accuracy to a billionth of a second, the scene entirely shows the clock?s accuracy to one millisecond. As dean and brill jump in an ski lift, their altitude is bring in by the NSA indicating the exercising of four satellites. When this occurs, the trackers? signal causes break and they at long brave lose it due to the add-on of structures and buildings disrupting the signal?s path. The point that their altitude is rising also leads to the signal acquire weaker, which results in the need for the NSA?s truck full of agents to interpolate location. aft(prenominal) the truck moves, the NSA agents are able to determine that the elevator carrying doyen and Brill had stopped. Brill then removes several trackers from dean including dickens that were similar to the one order in his shoe as well as one that fit into a pen. Considering that just a hardly a(prenominal) old age after this movie, GPS receivers could be smaller than one?s finger nail (Perton), it should be no surprise that they could even fit into a pen. Brill then takes Dean to the rooftop in hopes of the satellites scrambling the GPS signals, but it fails. He reveals to Dean that his cell phone contains a specialized GPS satellite tracker urge on at 24 gigahertz and that all of this was elaborately schemed by the NSA. As a result of the fact that he was boot out away transmitting signals to the agency, Dean throws his watch over the building and eventually removes his clothes in hopes of separating himself from all of the tracking devices that were booster cable to his demise. As Brill was interrogating Dean in the elevator, it raised some social implications of the new propagation of electronic devices at that time. It generated a reason of fear that this technology does non provide the certification and the helpfulness it was meant to when GPSs were first introduced to the public. When this characterization came out in 1998, the GPS was appease comparatively new to the blossom market; nonchalant citizens did not have access to or did not know how to fly the coop a GPS receiver. Enemy of the State instilled the concept of a society of management in which everyday people could be followed and tracked using the technology shown in the movie. This brought about a negative opinion regarding GPSs because Dean had no inference as to why he was being followed and who it was that cute him dead. Ever since this movie made its way to the public, management in society has increased and GPSs have been more widely on tap(predicate) to mass consumers. With this comes the qualification for tracking devices and transmitters to watch over every inch society that leads to an issue of signal maculation and political science intervention. Global Positioning Systems in Recent Media: indistinct down recent years, the media has been ever-changing this somewhat negative authority of GPS technology. In a 2007 gruntle of The horrific die hard, contestants had to fatten up a chase and manner of speaking mission. Using a GPS receiver, police squad members had to find a pilot film in the Guam forest that was designated on their GPS screen map. They then received new GPS co-ordinates from that soldier, located the get zone, and signaled for a chop to break them up and bring them sticker to the naval base.

This result of The Amazing range portrayed the important positive implications of GPS technology, this time on the battlefield, where soldiers could be located using this technology. The FOX ravisher television show 24 also offers a contrastive perspective for the GPS system than the point of view taken by Enemy of the State. whoreson Bauer, the main sensation on 24, is a homecoming Terrorist Unit (CTU) agent who is able to combat all sorts of little terrors to internal security. He routinely uses GPSs in his avocation of terrorist act and in defending his country, as does the CTU taskforce. This is especially evident in an instalment that aired in January of 2007. In a cliff-hanging pursuit stab, hoot Bauer uses his palmtop?s GPS to pinpoint his position on a real-time satellite map in order to locate his enemies from above. Images of the real world are displayed on the device?s screen in real-time, inappropriate regular noncombatant GPSs that just show a map. there are devices like the one used by Jack Bauer in this scene such as the Memory procedure offered in the get in concert Kingdom. Although the Memory defend is useable in Australia, North America, and Europe, with child(p) Britain is the only location that provides light picture taking for its users (Memory-Map). These aeriform photographs must be downloaded onto the GPS receiver?s screen every time the user chooses to view a new location or to refresh the current one, suggesting that 24?s depicting of the time it takes to produce these live feeds is in undefiled. Also, Jack Bauer is able to track and percolate where his target is located as it moves, while the airlike photography offered by Memory Map just displays stagnant photographs of the ground requested. With a Memory Map, upon receiving the aerial photograph, the receiver device uses GPS to help pinpoint the location of where one is, which is superimposed over the aerial image. In another 24 sequence, the CTU is trying to locate a missing person by the name of Assad, who claims to be working(a) for the level-headed of humanity, but is potentially affiliate with a terrorist group. Another terrorist leader, Abu Fayed, had determined a tracker on Assad that was eventually revealed to CTU upon further probe and negotiation. Assad reveals the co-ordinates of 33.5811° north latitude and 118.2114° west longitude to CTU, who then enter it into their GPS. With this information, CTU was able to emphasis on a specific area and use a satellite to track down Assad?s transmitter in that area. The time that it took from the input of the co-ordinates to the acknowledgement of Assad?s location was a mere ten seconds. The technology appears to be sooner accurate in terms of its logistics, including the ten second detection for Assad?s transmitter. Depending on the power of the technology, most GPSs that are available to mass consumers take a few minutes to start-off up and then several seconds to pinpoint its location. The extreme power of CTU?s GPS is of no surprise considering that it is a department of government intelligence. The act of GPSs in 24 has present its capability in scrap crime and providing national security unlike the surveillance paranoia ensued by Enemy of the State in 1998. The latter movie reflected the beginnings of a troubled society whose privacy seemed to be in jeopardy. GPS was used in this movie by the NSA to try and hunt down an everyday citizen who had been immersed into unfortunate circumstances. slight than ten years later, the media indicated a change in position to the GPS technology. The Amazing range showed how GPSs could be used to locate lost or wound soldiers while 24 showcased the GPS?s ability to defeat the foe and to cling to a nation. As with galore(postnominal) other technologies, GPSs have had a negative to positive flight of stairs in its portrayal in the media. From being a threat to one?s security, to enhancing one?s security, GPS systems portrayal in media have reflected our society?s changing perspective and attitude. whole caboodle Cited?6:00 A.M. ? 7:00 A.M.? 24 ? Season 6. By conjuring trick Surnow & Robert Cochran. FOX. 14Jan. 2007. Brain, Marshall, and Tom Harris. ?How GPS Receivers Work.? How Stuff Works. 23 blemish 2008. Enemy of the State. Dir. Tony Scott. With Will Smith, Gene Hackman, and Jon Voight.Touchstone Pictures, 1998. ? successiveness 11 ? Guam.? The Amazing Race All Stars. By Bertram train Munster. CBS. 29April 2007. ?Global Positioning System.? Global Positioning System. National Exectuive Committeefor Space-Based Positioning, Navigation, and clock (PNT). 24 edge 2008.?Global Positioning System.? Wikipedia, The Free Encyclopedia. 24 swear out 2008.Wikimedia Foundation, Inc. 24 March 2008. ?GPS: The Role of Atomic Clocks.? Beyond Discovery. 2003. National Academy ofSciences. 22 March 2008. . ?How Does GPS Work.? 18 may 2005. Online Video Clip. NASA Sci Files. 24 March2008. < http://video.google.com/videoplay?docid=6164350560364300786>?How GPS Receivers Work.? 5 July 2006. Online Video Clip. How Stuff Works. 24March 2008. Memory-map.co.uk. Memory-Map and EVO Distribution. 28 March 2008.?NASA Connect ? WYGTYA ? GPS.? 29 April 2004. Online Video Clip. NASAConnect. 24 March2008. Perton, Marc. ? natural Zealand?s Rakon develops world smallest GPS receiver.? Engadget.12 January 2006. 29 March 2008. ?What is GPS?? 2008. Garmin. 23 March 2008. If you want to get a full essay, order it on our website: Ordercustompaper.com

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