Tech Exploration – Global Positioning Systems

The majority of us lay big money experienced the affects of foreboding. The anxiety of introduction liter whollyy mazed in the crowd or world un sufficient to stripping your destination despite c argonful passage planning. Thanks to developments in engine room, turn of in timetss attempt been invented to precaution our memory deficiencies as well as our commit to speck limited berths. The world(prenominal) positioning constitution withal do it as the GPS, is iodine of these contrivances that serving us find our mood. With the enough GPS being spotlessive aspect in 1993, its beginning medicate ab procedures were in tended solely for military purposes (Beyond Discovery). Since indeed, this scientific marvel has been made functional to the masses for general rule or for travelling around the world. GPSs have similarly been visualized in various media such as loosenessing luxuriant-grown roles in ensure shows and television that showcase its c apabilities and its possibilities. The Comp matchlessnts of the world(prenominal) military position frame:The GPS, which is the save fully functioning orbiculate Navigation broadcast constitution, is a constellation of twenty-nine terra firma orbiting sends that atomic number 18 give by solar energy, travelling at an aggrandisement of 11,000 miles and circling the globe twice a day (Wikipedia). For the system of rules to per compliance as needed, it requires twenty-four operating satellites date five much be put into orbit in case there argon some(prenominal) failures or malfunctions taking place in any of the former(a) twenty-four original satellites (NASA Sci Files). The orbits of these satellites ar arranged so that at all periods, there argon at least(prenominal) four satellites whose signals ar within reach of any fixture on undercoat (NASA Sci Files). This is beca symbolizeping a GPS teleph unmatch adequate to(p) recipient role needs trine satell ites to study your rocky position while th! e signals from four satellites would power with the GPS exploiter to discover their latitude, lon dirty dogude, pinnacle, and m (NASA bind). The information regarding wholeness?s latitude and longitude is authorized because since more or less GPS murderers have built-in maps, it allows one(a) 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 contribute more than precise altitude information. How the world(a) berth System industrial plant:High-frequency low- military forceed radio signals from a satellite travel outwards in all directions interchangecap fitting a growing sphere. Your GPS liquidator gathers the signals from Satellite A and reveals a section of the earth that the system is located on. anformer(a)(prenominal) satellite?s signal, Satellite B, ar received, scarce it is these signals that intersect with the Satellite A?s signals allowi ng for a perfect passel to form from these spherical signals. Satellite C excessively transmits its signal to your GPS liquidator which hence comes into contact with the perfect circle created by Satellites A and B, resulting in the indication of 2 item points that are your possible lieus on earth. Finally, the earth acts as the fourth and final sphere as to where your positioning is, pastce you git eliminate one of the two points which is located in space. through the overlapping of these spheres, one can determine their approximate stance on earth victimization a GPS receiver and the signals of three orbiting satellites. The GPS receiver uses a mathematical process known as ?trilateration? to determine its own fixture. With this, the signals are 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 device th en basically compares the clock time that the signa! l was received and the time that it was transmitted by the satellite, whose diversity tells the receiver how far it is away from the satellite (Garmin). With the outgo measurements from good a couple more satellites, the GPS receiver can assure the user?s position and display it on the electronic map on the screen. What Global Positioning Systems Do:The GPS receiver?s job is to essentially locate three or four satellites in enjoin to allow its user to determine their geographic location. The receiver is usually equipped with a data processor that has a map, which is used to display its location on the screen. If the GPS receiver is moving however, the receiver could also provide its user with the urge on and direction of travel. The estimated time of arrival to one?s coveted destination can also be presented by this device (NASA Connect). With an atomic clock, which is precise to one reportionth of a second, satellites are able to produce exact time coded signals to aid wit h identifying the location of a specific receiver (Brain & Harris). The uses and the applications of the GPS are dateless as it does more than just help you when you are bewildered and onerous to find your way. Ambulances use the system to mote destinations and locations that they must(prenominal) tend to, while transportation and shipping companies use it to varan their fleets and cargo. Scientists use GPSs to admonisher earthquakes and tectonic plates, and the National Aeronautics and pose Administration themselves use it to encumber track of where the satellites are in the earth?s atmosphere. These are just the beginnings as to what GPSs are capable of doing, because as engineering science keeps developing, its range of functions is sure to follow. The Implications of the Global Positioning System:The obstacles that can be overcome by GPSs are great. The lordly uses for this applied science, as stated before, are timeless and association has wise(p) to embrace all that it has to offer. Since its introduction, GPS de! vices have sit more portable and affordable for mass society. Companies are embedding these soaring systems into escortes, cell phones, and other technological conveniences, which allows for tracking and monitoring of individuals. This, however, leads to the commons genial fence in of privateness and warranter. Government agencies, private companies, and individuals with the honest tools, are able to locate individuals use trackers in the form of GPS devices, which leads to ethical and healthy issues and contributes to the techno-dystopian sight of the world. This negative status regarding GPS technology and its uses has been engineered and reflected in various media throughout the past ten dollar bill and a half, but the exposure Enemy of the invoke beat exemplifies this. Global Positioning Systems in Enemy of the State:Robert doyen, play by allow Smith, is being compete down by the National Security Agency (NSA) for possessing evidence of a satiate away tha t they are trying to cover up. In arrange to keep track of his whereabouts, the NSA implanted various transponders and transmitters into his garment and technology. brill, played by Gene Hackman, aids dean in his stripping 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 adjacent 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 refuge 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 dean?s location which are 39° and 14 minutes north latitude, and 7 4° and 39 minutes atomic number 74 longitude. With ! this geoposition, the spies are able to point satellites to that specific location in dictate to retrieve live satellite vision of the building. The images of the GPS satellite imagery zooming into the building also display the atomic clock, but rather of showing its accuracy to a billionth of a second, the movie only shows the clock?s accuracy to one millisecond. As Dean and Brill ascend in an ski lift, their altitude is tracked by the NSA indicating the employment of four satellites. When this occurs, the trackers? signal causes fragmentise and they at long last lose it due to the ontogeny of structures and buildings disrupting the signal?s path. The fact that their altitude is rising also leads to the signal acquire weaker, which results in the need for the NSA?s motortruck full of agents to interpolate location. After the truck moves, the NSA agents are able to determine that the elevator carrying Dean and Brill had stopped. Brill then removes several trackers from D ean including two that were similar to the one arrange 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 at 24 gigahertz and that all of this was elaborately schemed by the NSA. As a result of the fact that he was shut away transmitting signals to the agency, Dean throws his watch over the building and in the end removes his clothes in hopes of separating himself from all of the tracking devices that were leading 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 o f fear that this technology does not provide the secu! rity and the helpfulness it was meant to when GPSs were first introduced to the public. When this image came out in 1998, the GPS was still comparatively new to the expand market; eitherday citizens did not have access to or did not know how to operate 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 perspective regarding GPSs because Dean had no inference as to why he was being followed and who it was that wanted him dead. Ever since this movie made its way to the public, management in society has increased and GPSs have been more widely obtainable to mass consumers. With this comes the mightiness for tracking devices and transmitters to watch over every inch society that leads to an issue of signal maculation and semipolitical science intervention. Global Positioning Systems in Recent Media: orphic down recent years, the media has been changing this somewhat negative delegation of GPS technology. In a 2007 season of The Amazing die hard, contestants had to nail down a chase and rescue mission. Using a GPS receiver, team up members had to find a pilot in the Guam forest that was designated on their GPS screen map. They then received new GPS co-ordinates from that soldier, located the arrive zone, and signaled for a chop to pick them up and bring them bet on 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. cuckoo Bauer, the main whiz on 24, is a Counter Terrorist Unit (CTU) agent who is able to combat all sorts of menaces to national security. He routinely uses GPSs in his pursuit of terrorist act and in defending his country, as do! es the CTU taskforce. This is especially evident in an episode that aired in January of 2007. In a cliff-hanging pursuit stab, knee bend 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, contrasted regular noncombatant GPSs that just show a map. thither are devices like the one used by Jack Bauer in this scene such as the Memory interpret offered in the get together Kingdom. Although the Memory symbolise is obtainable 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 gossamer 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 inaccurate. Also, Ja ck Bauer is able to track and see where his target is located as it moves, while the aerial 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 good of humanity, but is potentially connected with a terrorist group. Another terrorist leader, Abu Fayed, had placed 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 focus on a specific area and use a satellite to track down Assad?s transmitter in that area. The time that it took from th e input of the co-ordinates to the identification 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 portrayal of GPSs in 24 has demonstrate its capability in fighting 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. less(prenominal) than ten years later, the media indicated a change in military position to the GPS technology. The Amazing Race 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 protect a nation. As with many 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. works Cited?6:00 A.M. ? 7:00 A.M.? 24 ? Season 6. By whoremonger 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. ?Episode 11 ? Guam.? The Amazing Race either Stars. By Bertram van Munster. CBS. 29April 2007. ?Global Positioning System.? Global Positioning System. National Exectuive Committeefor Space-Based Positioning, Navigation, and Timing (PNT). 24 edge 2008.?Global Positioning System.? Wikipedia, The! Free Encyclopedia. 24 knock against 2008.Wikimedia Foundation, Inc. 24 March 2008. ?GPS: The quality of Atomic Clocks.? Beyond Discovery. 2003. National Academy ofSciences. 22 March 2008. . ?How Does GPS Work.? 18 May 2005. Online video recording Clip. NASA Sci Files. 24 March2008. < http://video.google.com/videoplay?docid=6164350560364300786>?How GPS Receivers Work.? 5 July 2006. Online pic 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. ?New 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: OrderEssay.net

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