Thursday, October 31, 2019

Summary Essay Example | Topics and Well Written Essays - 250 words - 188

Summary - Essay Example When the fair trade movement began in the mid 20th century, its aim was to reduce poverty levels among the poor. The organization has changed names although its aim remains the successful fair trade in goods (Sarah Stanley 1). Fair trade is beneficial to both consumers and producers. However, fair trade faces many problems. For example, a guaranteed market tempts the farmers to produce poor quality coffee and it hurts the consumers. The assessment of problems of fair trade is not well explained. The assessment does not adequately state the successes of fair trade, and this makes it hard to point out its deficiencies. In addition, the assessment does not indicate how it concluded that fair trade does not eliminate child labor but displaces it. One is left wondering whether fair trade has reduced poverty among coffee farmers or not. In addition, how does fair trade manage to secure competitive prices for coffee farmers as opposed to free trade? Fair trade must adapt to new market demands and encourage the producers to improve the quality of their goods. The measures shall help both consumers and producers in the long

Monday, October 28, 2019

Ralph Waldo Emerson Essay Example for Free

Ralph Waldo Emerson Essay Learning is a natural ability that is wired into many animals DNA; the way that humans should learn has been debated by the various educators because of the endless ways to teach. Teachers and parents take this matter seriously like Ralph Waldo Emerson in â€Å"From Education† and Todd Gitlin in â€Å"The Liberal Arts in an Age of Info-Glut† who created essays on education; and Billy Collins in â€Å"The History Teacher† entail for then and who wrote a poem concerned with the status of education. These people show what the importance of education is entailing what learning should and should not involve; a teacher should respect and have patience for children; a teacher should also let a child have creativity and lessons of the past. Many teens do not respect their teacher which might be because the teacher does not respect them; as the golden rule goes, â€Å"treat others the way you would treat yourself†; Ralph Waldo Emerson in â€Å"From Education† would probably agree with this quote because he strongly believes that, â€Å"the secret of [e]ducation lies in respecting the pupil,† (page 102). Shows that Emerson understood what children are thinking then did something to help them by simply respecting them. Another big issue with education is patience; some people do not have enough patience to guide children to what they are supposed to learn. Emerson also believes that patience is an important part in education, â€Å"to regard the young [children, they require] no doubt, rare patience: a patience that nothing but faith in medial forces of the soul can give,† Emerson was trying to say that someone has to really care in order to teach information to children (page 105). Some people do not see the point in having art classes or history classes; the reason why is because art assists students to express themselves in a way that words cannot along with helping them find out what kind of person they truly are; and history is needed to teach children where they originated from; and to show them mistakes that other people in the past made so they will not make them again. Todd Gitlin in â€Å"The Liberal Arts in an Age of Info-Glut† agrees with this â€Å"[students] need some orientation to philosophy, history, language, literature, music, and arts that have lasted more than 15 minutes,† (page 156) because students need the outlet to express themselves; or if they do not they would not learn morals then they would become exactly  what people were trying to stop; As shown in â€Å"The History Teacher† by Billy Collins who stated, â€Å"the children would leave his classroom for the playground to torment the weak and the smart,† all because â€Å"[the teacher tries] to protect his students’ innocence he told them the Ice Age was really just the Chilly Age, a period of a million years when everyone had to wear sweaters. And the Stone Age became the Gravel Age, named after the long driveways of time,† this demonstrates how not teaching children lessons of the past which are the brood violence’ that others committed in history; by not teaching this history it affects children’s behavior in real life (page 143). Morals are right and wrong many people’s morals will differ; this is why teaching them is tricky because the teacher’s morals might not be the same as the parent’s morals. This is why some of the history in textbooks is sometimes just the summary of what really happened but not enough for the main point to be set across unlike in â€Å"The History Teacher† where, â€Å"the Spanish Inquisition [is] nothing more than an outbreak of questions such as â€Å"How far is it from here to Madrid? †,† and â€Å"the War of the Roses took place in a garden, and the Enola Gay dropped one tiny atom on Japan,† explains when a teacher goes too far in trying to protect student’s mind from bad; when only good is taught and everything else is censored then the students become the opposite; because they do not know the consequences of doing bad, which is why history is taught. As teachers and parents they have to let their students make their own choices as shown in â€Å"From Education† Emerson says, â€Å"it is not for you to choose what he shall know, [or] what he shall do,† shows that sometimes a student needs to find out the consequences the hard way, and let them choose what they want to learn (page 143). Education is needed in modern day society to help students and children grow and help the nation; by giving students proper education the teacher are not really helping the students but they are helping themselves. Teaching creativity helps a student express themselves; respect should be given so the student can give it back; patience is needed to help them understand; morals need to be taught through history so the student will make fewer mistakes; these are essential to a good education and an even better future: as shown by the writings of Billy Collins, Ralph Waldo Emerson, and Todd Gitlin.

Saturday, October 26, 2019

Frigg Field Case Study

Frigg Field Case Study CUTTING AND REMOVAL OF PLATFORM FOUNDATIONS Callum Toole: 201662274 Antonios Poulis: 201685557 Marinos Mavroulis: 201667892 Abraham Ejiro Ibodje: 201653157 1.1 NORTH SEA Since the first steel piled jacket foundation (SPJF) was installed in the North Sea in 1967 there has been a total of 556 installed and 52 have been decommissioned after operational use. The operational water depth of the North Sea varies as SPJF are split into small and large categories. Of the original 556 foundations 392 were installed in water depths of less than 55m leaving 164 foundations reaching to depths of 190m (Oil Gas UK, 2012) (Offshore-mag, 2000). With oil and gas reserves depleting in this area more and more installations are applying for cease of production (CoP) to begin the decommissioning cycle. It has been estimated that over the next 25 years there will be  £35bn spent on decommissioning activity in the North Sea alone (Decom North Sea, 2014). 1.2 CASE STUDY FRIGG FIELD The Frigg Field is situated in the North Sea with 6 differing fixed foundation structures spread over UK and Norwegian blocks 10/1 and 25/1 respectively. These fixed foundations are a mixture of SPJF and Gravity Based Structures (GBS). For the remainder of this assignment the Frigg Field case study will only consider the cutting and removal of DP2 an 8 leg SJPF which supported a drilling and production platform Figure 2, (Total, 2003). Key aspects of the Frigg Field DP2 to be considered are: Water depth 98m (321.5ft) Production depth 1850m (6070ft) 24 wells drilled in total for production 20 original steel pile foundations (4 external at each corner leg and 4 internal at inner legs) (T Gram, 2011) at 60 diameter (Total, 2003) Jacket recovery via re-float technique after successful installation of buoyancy and cutting of foundations In the North Sea, the selection of the ROV system is vital to its success of the cutting and removal of the DP2 jacket foundations. This is due to the ever-changing dynamic offshore environment that effect cutting, lifting and removal of subsea infrastructure. 2.1 ROV UNIT The Oceaneering Millennium Plus (OMP) 220hp heavy work class ROV was selected for the cutting and removal of the Frigg DP2 foundations due to its operational capabilities. The ROVs working class design allows for front assembled dual manipulators to be interactive with the task in hand. Weighing in at 4,000kg the OMPs dimensions are 3.31.71.9m (LxWxH) (Oceaneering, 2017). The depth capabilities of the ROV exceed the depth needed to fully operate in the North Sea conditions at the Frigg site as it is rated for up to depths of 3,000m. A main consideration of the OMP is its station keeping abilities and dual hydraulic units of 110hp powering 4 vectored horizontal and 4 vertical propulsion units. This allows for 2,000lbs of thrust to be used in the lateral, forward and reverse directions with a vertical thrust of 2,800lbs. 2.2 VISIBILITY TOOL INTERACTION Another main consideration of the ROV selected is its ability to interact clearly with tooling and structures at the water depth. This is made possible by the dual manipulators having 5 degrees of function which is powered by a 24V DC and 110V AC power supply on board. To successfully clear, cut and remove the 20 pile foundations the OMP is versatile enough to interact with heavy duty tools to do the jobs of dredging, cutting and use its manipulators to fit buoyancy cans within 15 mm tolerance for removal operations (Oceaneering, 2017) (Total, 2011). The OMP will be interacting with a standalone subsea dredge and an External Cutting Tool when at operational depths. But also has the ability to be fitted with various skid pans if needed. The ECT selected for the cutting operations of the pile foundations is an abrasive water jet cutting approach due to its multi-dimensional clamp configurations that allow for various diameters form 16 72 pipe to be cut. This is made possible by 8 fully mounted 250W high intensity LED lighting units surrounding the front facing operating area working in conjunction with visuals. The visual output of the OMP comes from cameras which can either be standard, high or 3D high definition (HD) -   3D HD is preferred for the operations due to enhanced visuals allowing for a safer more efficient operation. 2.3 NAVIGATION Automatic controls for the OMP are used via fly by wire systems that allow for station keeping regarding depth, pitch, altitude and automatic pre-programmed headings. To allow for the altitude and headings to be correct a surveying grade gyro and backup fluxgate compass is available on board the ROV. Depth of the ROV unit is vital due to the foundations being at seabed level and to avoid collisions with the seabed and/or cuttings pilings in the area (Oceaneering, 2017). 2.4 LAUNCH AND RECOVERY SYSTEM (LARS) The adaptability of the OMP with regards to different LARS allows it to be used with multiple possible vessels when on site. There are various options available for the OMP: heavy weather over boarding, A-frame, cursor and heavy lift winching. To safely and successfully launch and recover the OMP an A-frame system was selected. This is due to its simplicity, lifting capabilities and cost reduction during mobilisation at a new site or location. 2.5 TETHER MANAGEMENT SYSTEM (TMS) During under water operations the OMP can work either free swimming or via a TMS. Free swimming operations are directly connected to the ROV transmitting electrical power, mechanical payloads and optical signal by means of a tether during operations.   A TMS configuration includes the use of a side entry garage or a Top-hat connection where the topside umbilical is connected and then redistributes the power and signals to the ROV via a tethered connection. During this operation at the Frigg Field a Top-hat TMS would be used to guide, control and position the OMP throughout its cutting and removal operations. This is due to strong advantages such as: providing protection to the OMP as it is securely connected during launch and recovery, secure positioning reduces complications at splash zone interaction, the addition of the Top-hat TMS allows for a further working radius from the garage rather than free swimming operations and allowing for greater precision on deployment to the work site. A typical mission for the OMP varies depending on the level of cutting and removal of foundations during decommissioning operations. Regarding the case study adopted for the Frigg Field the typical mission expected would be as follows: Environmental checks would be carried out on the vessel to determine there is safe working conditions for the OMP to operate OMP and top-hat configuration would be connected and moved to launch platform of the A-frame Final checks of OMP before launch Launching and lowering of the OMP (via A-frame) into the water through the splash zone monitoring tension on the line Grounding at operational level of 98m Subsea pressure and containment checks then release from top-hat configuration Movement towards and interaction with dredging equipment via manipulators Dredging work carried out with standalone subsea dredge on completion the tooling would be removed Inspection of pile surfaces to be cut via front mounted cameras Interaction with ECT cutting equipment via manipulators Attachment of ECT cutting equipment to initial foundations monitoring workload from visuals Interaction with buoyancy sections being used for re-float x4 interaction, manipulation, fastening and final checks Final checks of whole system and foundation structure before final piles are cut Attachment of ECT cutting equipment for final cuts x4 carried out Monitoring the floating of the jacket structure and buoyancy module interaction via visuals Final checks of the seabed environment and coverage of unburied foundations Recovery operations via the top-hat configuration and return to surface Checks, assessment and maintenance of the ROV reported Having selected the OMP for the decommissioning and removal of the DP2 SPJF there are various areas that may cause difficulties during the installation, operating and maintaining the OMP. 4.1 SEA STATES WAVE AND CURRENTS In the Frigg field, the average speed of wind between the winter months December to February is about 9.9 m/s. For this wind velocity, waves are most likely to have a maximum height of 2.5m. However, during severe winter storms which occur roughly once per decade in the area, there is a significant possibility of wave average heights from 12.1m and maximum height of 24m. Currents do fluctuate, reliant on the speed and direction of the winds (Total, 2003). With these environmental considerations in the North Sea it was necessary to choose an ROV with high performance thrusters to aid in station keeping whilst operating. The OMP permits this with four powerful vectored horizontal and four vertical thrusters, which allow the system to move in four directions, vertical, lateral, roll and pitch comfortably with 2,000lbs of thrust available (Oceaneering, 2017). 4.2 LAUNCH AND RECOVERY OPERATIONS During launch and recovery operations there are expected difficulties such as: Large waves and high winds can cause the OMP and Top-hat TMS to swing wildly potentially impacting the vessel and causing damage to equipment Difficult deployment and recovery procedures when there a reduced deck space to accommodate the operation On drilling rigs the proximity of the OMP and Top-hat to the vessels hull and thrusters during entry and exit into the splash zone can become complicated Deployed extension cables can be required to reach satellite sites where it was not practical or possible to install via the Top-hat TMS 4.3 OPERATIONAL CUTTINGS Operational drill cuttings can be problematic with the removal of platform foundations due to its chemical makeup and mass surrounding the foundations at the sea bed. With the DP2 platform, 24 wells were drilled in total with an estimated upheaval of contained in an area of 80m x 120m at a maximum thickness of 20cm. Due to the low toxicity of the drilling mud used the cuttings can be removed and treated (Total, 2003). To combat this the OMP is capable of using a stand-alone 12 subsea dredge which can manipulate the suction nozzle aiding in the removal of drill cuttings and sediment surrounding the foundations before cutting operations (Oceaneering DTS, 2013). 5.1 OIL GAS The OMP can be used for different operations in the oil gas industry such as: inspection, maintenance and repair, installation, workover and control system (IWOCS), surveying, dredging, subsea tie-ins, flow assurance checks, assisting in the removal of subsea productions systems, mooring line servicing, cable laying operations, video servicing, acoustic positioning and BOP intervention. Such operations like these can take place in the deep-water environments up to 3,000m maximum operational depths of the OMP. With respect to maintenance, repair and installation operations, the OMP has the capacity of transferring hot tap fittings, pipeline clamps, misalignment ball connectors, swivel-ring flanges, breakaway joints, riser connections and other equipment for delivery, repair and installation. Trenching burial of pipes and cables are operations that are carried out by ROVs that have 200hp and above. The OMP can be considered for these types of laying and burial operations due to its classification and built in features (Oceaneering, 2017). One of the challenges facing operations in the offshore wind farm environment is observation and maintenance of fixed foundation based, cable monitoring, structural integrity checks and seabed surveys, the OMP is well suited to address these issues due to its comprehensive build, mostly in winter and less visible conditions (UnderwaterVision, 2017). 5.2 FRIGG FIELD VERSATILITY During the decommissioning operation of the DP2 jacket it became aware that extra preparation in cutting and removal of pile guides was needed to successfully fit and mount the buoyancy cans for removal. A solution to this was that a bespoke diamond wire tool and buoyancy solution was designed for operations to be carried out by ROV. With the OMP this could be successfully carried out due to its adaptability and tooling interaction (Proserv, 2017). 5.3 OCEAN SCIENCE The OMP can be used for scientific research under water such a sea animal and plants studies in natural environment, Arctic operations, if equipped with various sampling devices. Also, as it is equipped with 3D HD Camera (highly intensity LED) it can operate in extreme environments. Another strong versatile function is that it could be used for underwater interactions documentaries, filmmaking, archaeology projects, e.g. Mystery Mardi Gras shipwreck (Landis, 2017). 5.3 MILITARY The Millennium Plus vehicle optional power/ data interfaces (Ethernet/optical fibre) and other features built in it can be used for naval/military operation, primarily for mine hunting and mine breaking. Neutralizing and retrieving of explosives, moored mines and also inspection tasks like meteorology, detection of environmental hazard, port security, mine countermeasure and maritime intelligence. 5.4 FISHERIES AND AQUACULTURE The over exploitation of the North Sea remains a highly-discussed topic to date to combat this there has been a growing market for offshore fish farms. A typical mission would involve the OMP to either help install or inspect and monitor fish inside, inspect netting/cages that have been used for containment. The manipulator operability would allow for heavy cages to be moved into place and fastened securely whilst clearly visual (R. D. Christ, 2014), The OMP can perform a widespread range of activities however there is still the possibility for improvements that may be considered for future development and improved efficiency. 6.1 VISUAL Currently the OMP can be fitted with either: Standard Definition (SD), High Definition (HD) or a 3D HD camera. For improved visibility during decommissioning operations and dredging procedures where the water conditions could be blurred due to sediment, an upgrade to a 4K Ultra HD camera would be beneficial. The light sensitivity and quality of video produced would offer the OMP user a confidence even when the seabed conditions are not clear to operate. The upgraded camera can be fitted with some more technical specifications such as noise reduction, a wider area of view and higher contrast. With these camera upgrades, the user will have less misrepresentations and even better situation and spatial awareness. 6.2 POWER OUTPUT THRUST CAPABILITIES Improving the hydraulic power units on board to 2 x 125hp would allow for an increase in 300lbs of thrust in the vertical, lateral, forward and reverse directions this would allow for the OMP to: improve its station keeping abilities, be quicker during launch and recovery, manoeuvre heavier standalone tools and extra up thrust would allow the OMP to return to the surface with heavier loads more efficiently. 6.3 MANIPULATORS Increasing the manipulators range of motion would allow for more detailed technical operations to be carried out and improve the pilot/ROV interaction. This could be made possible by improving the dual manipulators to have 7 degrees of function and mounting a wrist camera assembly to improve visibility (Oceaneering, 2017). A manipulator that could be considered could be the TITAN 4 with its 7 degrees of motion, titanium material characteristics to reduce weight and titanium wrist mounted camera to increase visibility (FMC Technologies, 2017). Decom North Sea, 2014. Decommissioning in the North Sea Review of Decommissioning Capacity, s.l.: Decom North Sea. FMC Technologies, 2017. http://www.f-e-t.com. [Online] Available at: http://www.f-e-t.com/images/uploads/Schilling_Titan_4_with_Spares_Kit.pdf[Accessed 4 March 2017]. Landis, N., 2017. Naultilus Productions. [Online] Available at: http://nautilusproductions.com/projects/mystery-mardi-gras-shipwreck-documentary[Accessed 4 March 2017]. Oceaneering DTS, 2013. DTS Tooling. [Online] Available at: http://www.oceaneering.com/oceandocuments/brochures/subseaproducts/Oceaneering-DTS-Catalog-2013.pdf[Accessed 4 March 2017]. Oceaneering, 2017. http://www.oceaneering.com. [Online] Available at: http://www.oceaneering.com/oceandocuments/brochures/rov/ROV%20-%20Nexxus.pdf[Accessed 4 March 2017]. Oceaneering, 2017. Millennium Plus 220hp heavy work class ROV. [Online] Available at: http://www.oceaneering.com/oceandocuments/brochures/rov/ROV%20-%20Millennium%20Plus.pdf [Accessed 4 March 2017]. offshore Energy Today, 2012. http://www.offshoreenergytoday.com. [Online] Available at: http://www.offshoreenergytoday.com/tag/ocean-installer/page/2/[Accessed 10 March 2017]. Offshore-mag, 2000. Offshore-mag.com. [Online] Available at: http://www.offshore-mag.com/articles/print/volume-60/issue-8/news/two-part-kvitebjoslashrn-jacket-will-break-north-sea-water-depth-record.html[Accessed 19 Feb 2017]. Oil Gas UK, 2012. Oil Gas UK The Decommissioning of Steel Piled Jackets In the North Sea Region, s.l.: Oil Gas UK. Proserv, 2017. http://www.proserv.com. [Online] Available at: http://www.proserv.com/media/case-studies/decommissioning/frigg-field/[Accessed 4 March 2017]. R. D. Christ, R. L. W., 2014. The ROV Manual A User Guide for Remotely Operated Vehicles. 2nd ed. Waltham: Elsevier. stevo6187, 2017. imagala.com. [Online] Available at: http://www.imagala.com/post/1X5SEdD4ZD[Accessed 4 March 2017]. T Gram, R. K. J. K. M. J. E. K. C. H. A. S., 2011. Decommissioning of Frigg and MCP01 A Contractor View. Offshore Technology Conference, Volume 21708. Total, 2003. Frigg Field Cessation Plan, Stravanger: Total. Total, 2011. Frigg Field Cessation Plan Close Out Report, s.l.: Total. UnderwaterVision, 2017. Underwater Vision. [Online] Available at: http://www.underwatervision.co.uk/services/wind-farms-and-offshore/[Accessed 4 March 2017].

Thursday, October 24, 2019

car accident :: essays research papers

Traumatic events come in many different ways at many different times of ones life. Mine came on the school bus while I was on my way home from school. The bus had stopped to let a couple kids off and I stood up to throw some trash away. I stood up we were rear ended by a young lady who had been trying to get a bee out of the car and not realized the bus had stopped. I was standing up and the impact caused me to bang into the seat in front of me and the one behind me. I didn’t realize what had happened until moments later when someone said something. As I began to sit down I felt a sharp pain shoot through my body and my heart started to beat rapidly.   Ã‚  Ã‚  Ã‚  Ã‚  The accident made me realize that nothing is for certain and you shouldn’t take anything for granted. I had always viewed riding a school bus has something that wouldn’t put me in danger, after all the drivers are trained professionals, right? What I never considered was the actions of others and how complete strangers can change your life in a bigger and more significant way than some of the people closes to you. I had never really considered dying at a young age because my grandparents lived to be old. After that bus ride home my outlook on life was severely changed and I started to appreciate my parents more an tell them I loved them a lot more often because wasn’t sure if we’d both be around to say it the next time.   Ã‚  Ã‚  Ã‚  Ã‚  The car accident will always be a major moment in my life because of what it showed me. That accident gave me visual proof that God has a plan for everyone and everything has a reason or hidden message. Just when I was coming to a point in my life where I was beginning to see where I fit in at school, it reminded me to cherish every moment has though it was my last, because I don’t know when it’ll be over.

Wednesday, October 23, 2019

Christopher McCandless Essay

Christopher Johnson McCandless (February 12, 1968 – August 1992) was an American hiker who adopted the alias Alexander Supertramp and ventured into the Alaskan wilderness in April 1992 with little food and equipment, hoping to live simply for a time in solitude. Almost four months later, McCandless’s remains were found, weighing only 67 pounds (30 kg). It has recently been speculated that Chris had developed lathyrism, caused by his consumption of seeds from a flowering plant in the legume family which contain the neurotoxin ODAP. McCandless’s resulting paralysis would have caused a gradual inability to move, hunt or forage and this could have led to his death from starvation.[1] His death occurred in a converted bus used as a backcountry shelter, near Lake Wentitika in Denali National Park and Preserve. In January 1993, Jon Krakauer published McCandless’ story in that month’s issue of Outside magazine. Inspired by the details of McCandless’s story, Krakauer wrote and published Into the Wild in 1996 about McCandless’ travels. The book was adapted into a film by Sean Penn in 2007 with Emile Hirsch portraying McCandless. That same year, McCandless’s story also became the subject of Ron Lamothe’s documentary The Call of the Wild. A full-length article on McCandless also appeared in the February 8, 1993 issue of the The New Yorker magazine.[2] Earlier years[edit] Christopher McCandless was born in El Segundo, California, the first of two children to Walter â€Å"Walt† McCandless and Wilhelmina â€Å"Billie† Johnson. Chris had one younger sister, Carine. In 1976, the family settled in Annandale, Virginia, a suburb of Washington, D.C., after his father was employed as an antenna specialist for the National Aeronautics and Space Administration (NASA). His mother worked as a secretary at Hughes Aircraft and later assisted her husband with his successful home-based consulting company in Annandale. Walt and Billie often fought and sometimes contemplated divorce.[citation needed] Chris and Carine had six half-siblings living in California from Walt’s first marriage. Walt was not yet divorced from his first wife when Chris and Carine were born; however, Chris did not discover his father’s affair until a summer trip to Southern California[3] in 1986. This discovery caused him to hold a lot of bitterness towards his father, and could have been a factor in his views about society. At school, teachers noticed McCandless was unusually strong-willed.[citation needed][who?] In  adolescence he coupled this with intense idealism and physical endurance. In high school, he served as captain of the cross-country team, urging teammates to treat running as a spiritual exercise in which they were â€Å"running against the forces of darkness †¦ all the evil in the world, all the hatred.†[4] On June 2, 1986, McCandless graduated from W.T. Woodson High School in Fairfax, Virginia. On June 10, McCandless embarked on one of his first major adventures in which he traveled throughout the country in his Datsun B-210, arriving at Emory University in Atlanta, Georgia, two days prior to the beginning of fall classes. His upper middle class background and academic success were drivers for his contempt of what he saw as the empty materialism of society. McCandless was strongly influenced by Jack London, Leo Tolstoy, W. H. Davies and Henry David Thoreau. In his junior year, he declined membership in the Phi Beta Kappa Society, on the basis that honors and titles were irrelevant. McCandless graduated from Emory on May 12, 1990, with a Bache lor’s degree, double majoring in history and anthropology. He envisioned separating from organized society for a Thoreauvian period of solitary contemplation. Travels[edit] In May 1990, Christopher McCandless donated the remaining $24,000, given to him by a family friend for his law degree, to Oxfam International, a hunger prevention charity. Towards the end of June, he began traveling under the name â€Å"Alexander† McCandless until later adopting the last name of â€Å"Supertramp† (Krakauer notes the connection with Welsh author W. H. Davies and his 1908 autobiography The Autobiography of a Super-Tramp). Most people he encountered regarded him as intelligent and one who loved to read. By the end of the summer, McCandless made his way through Arizona, California and South Dakota, where he worked at a grain elevator in Carthage. He survived a flash flood, but allowed his car to wash out (although it suffered little permanent damage and was later reused by the local police force as an undercover vehicle) and disposed of his license plate.[citation needed] In 1991, McCandless paddled a canoe down remote stretches of the Colorado River to the Gulf of California. He crossed the border to Mexico and, having gotten lost in many dead-end canals, was towed by duckhunters to the sea, where he stayed for some time. He took pride in surviving with a minimum of gear and funds, and generally made little preparation. Alaskan Odyssey[edit] For years, McCandless dreamed of an â€Å"Alaskan Odyssey† wherein he would live off the land of the Alaskan wilderness, far away from civilization, and â€Å"find himself†[citation needed]. He kept a journal describing his physical and spiritual progress as he faced the forces of nature. In April 1992, McCandless hitchhiked from Enderlin, North Dakota, to Fairbanks, Alaska. He was last seen alive on April 28, 1992, by Jim Gallien, a local, who gave him a ride from Fairbanks to the head of the Stampede Trail. Gallien was concerned about â€Å"Alex†, who had minimal supplies (not even a compass) and no experience surviving in the Alaskan bush. Gallien repeatedly tried to persuade Alex to defer his trip, and even offered to drive him to Anchorage to buy suitable equipment and supplies. However, McCandless ignored Gallien’s warnings, refusing all assistance except for a pair of Wellington rubber boots, two tuna melt sandwiches, and a bag of corn chips. Gallie n allowed Chris to wander off with the belief that he would head back towards the highway within a few days as his eventual hunger set in. After hiking along the snow-covered Stampede Trail, McCandless found an abandoned bus (about 40 miles (64 km) west of Healy) used as a hunting shelter and parked on an overgrown section of the trail near Denali National Park, and began to live off the land. He had 10 pounds (4.5 kg) of rice, a Remington semi-automatic rifle with 400 rounds of .22LR hollowpoint ammunition, several books including one on local plant life, and some camping equipment. He assumed he could forage for plant food and hunt game. For the next thirty days or so, McCandless poached porcupines, squirrels, and birds, such as ptarmigans and Canada geese. On June 9, 1992, he managed to kill a moose; however, he failed to preserve the meat properly, and within days it spoiled and was covered with maggots. His journal contains entries covering a total of 112 days. These entries range from ecstatic to grim with McCandless’ changing fortunes. In July, after living in the bus for three months, he decided to leave, but found the trail back blocked by the Teklanika River, which was then considerably higher and swifter than when he crossed in April. Unknown to McCandless, there was a hand-operated tram that crossed the river only 1⠁„4 of a mile away from where he h ad previously crossed. In the 2007 documentary The Call of the Wild, evidence is presented that McCandless had a map at his disposal, which should have helped him find  another route to safety.[5] McCandless lived in the bus for a total of 113 days. At some point during that time, presumably very near the end, he posted an S.O.S. note calling on anyone passing by to help him because he was injured and too weak. The full note read: â€Å" Attention Possible Visitors. S.O.S. I need your help. I am injured, near death, and too weak to hike out. I am all alone, this is no joke. In the name of God, please remain to save me. I am out collecting berries close by and shall return this evening. Thank you, Chris McCandless. August?[6] † Death[edit] On August 12, 1992, McCandless wrote what are apparently his final words in his journal: â€Å"Beautiful Blueberries.† He tore the final page from Louis L’Amour’s memoir, Education of a Wandering Man, which contains an excerpt from a Robinson Jeffers poem titled â€Å"Wise Men in Their Bad Hours†: Death’s a fierce meadowlark: but to die having madeSomething more equal to centuriesThan muscle and bone, is mostly to shed weakness.The mountains are dead stone, the peopleAdmire or hate their stature, their insolent quietness,The mountains are not softened or troubledAnd a few dead men’s thoughts have the same temper. His body was found in his sleeping bag inside the bus by Butch Killian, a local hunter, on September 6, 1992.[7] McCandless had been dead for more than two weeks and weighed an estimated 30 kilograms (66 lb). His official, undisputed cause of death was starvation. Krakauer suggests two factors may have contributed to McCandlessâ€⠄¢s death. First, he was running the risk of a phenomenon known as â€Å"rabbit starvation† due to increased activity, compared with the leanness of the game he was hunting.[8] Krakauer also speculates that McCandless might have ingested toxic seeds (Hedysarum alpinum or Hedysarum mackenzii) or a mold that grows on them (Rhizoctonia leguminicola produces the toxic alkaloid swainsonine). However, an article in Men’s Journal stated that extensive laboratory testing showed there was no toxin present in McCandless’s food supplies. Dr. Thomas Clausen, the chair of the chemistry and biochemistry department at UAF said â€Å"I tore that plant apart. There were no toxins. No alkaloids. I’d eat it myself.†[9] Analysis of the wild sweet peas, given as the cause of Chris’s death in Sean Penn’s film, turned up no toxic compounds and there is not a single account in modern medical literature of anyone being poisoned by this  species of plant.[5] As one journalist put it: â€Å"He didn’t find a way out of the bush, couldn’t catch enough food to survive, and simply starved to death.†[9] However, the possibility of death through the consumption of the mold, which grew on the seeds in the damp bags which McCandless stored them in, was considered a suitable explanation by Krakauer.[3] Subsequently the academic Ronald Ha milton made the link between the symptoms described by Chris and the poisoning of Jewish prisoners in the Nazi concentration camp in Vapniarca. He put forward the proposal that Chris McCandless died of lathyrism caused by ODAP poisoning from Hedysarum alpinum seeds which hadn’t been picked up by the previous studies as they were searching for alkaloid instead of toxic protein. The protein would be relatively harmless to a well-fed person on a normal diet, but toxic to someone who was malnourished, physically stressed, and on an irregular and insufficient diet, as McCandless was. Subsequent tests revealed ODAP was indeed present in the seeds. [10][11] Criticism[edit] McCandless has been a polarizing figure ever since his story first broke following his death, along with Krakauer’s Outside article on him in January 1993. While Krakauer and many readers have a largely sympathetic view of McCandless,[12] others, particularly Alaskans, have expressed negative views about McCandless and those who romanticize his fate.[13] The most charitable view among McCandless’s detractors is that his behavior showed a profound lack of common sense. He chose not to bring a compass, something that most people in the same situation would have considered essential. McCandless was also completely unaware that a hand-operated tram crossed the otherwise impassable river 0.25 miles (0.40 km) from where he attempted to cross. Had McCandless known this, he could easily have saved his own life.[4] There has been some speculation (particularly in details given in the Lamothe documentary) that he vandalised survival cabins and supplies in the area. However, Ken K ehrer, chief ranger for Denali National Park, denied that McCandless was considered a vandalism suspect by the National Park Service.[14] His venture into a wilderness area alone, without adequate planning, experience, preparation, or supplies, without notifying anyone and lacking emergency communication equipment, was contrary to every principle of outdoor survival and, in the eyes of many experienced outdoor  enthusiasts, nearly certain to end in misfortune. Alaskan Park Ranger Peter Christian wrote: When you consider McCandless from my perspective, you quickly see that what he did wasn’t even particularly daring, just stupid, tragic, and inconsiderate. First off, he spent very little time learning how to actually live in the wild. He arrived at the Stampede Trail without even a map of the area. If he [had] had a good map he could have walked out of his predicament [†¦ ] Essentially, Chris McCandless committed suicide.[13] Sherry Simpson, writing in the Anchorage Press, described her trip to the bus with a friend, and their reaction upon reading the comments that tourists had left lauding McCandless as an insightful, Thoreau-like figure: Among my friends and acquaintances, the story of Christopher McCandless makes great after-dinner conversation. Much of the time I agree with the â€Å"he had a death wish† camp because I don’t know how else to reconcile what we know of his ordeal. Now and then I venture into the â€Å"what a dumb–† territor y, tempered by brief alliances with the â€Å"he was just another romantic boy on an all-American quest† partisans. Mostly I’m puzzled by the way he’s emerged as a hero.[15] Jon Krakauer defends McCandless, claiming that what critics point to as arrogance was merely McCandless’s desire for â€Å"being the first to explore a blank spot on the map.† Krakauer continues that â€Å"In 1992, however, there were no more blank spots on the map—not in Alaska, not anywhere. But Chris, with his idiosyncratic logic, came up with an elegant solution to this dilemma: He simply got rid of the map. In his own mind, if nowhere else, the terra would thereby remain incognita.†[16] Others have pointed out that a map of the area (although apparently not including the location of the hand-powered tram) was found among McCandless’s belongings, and refute the accusations that he intentionally discarded this map.[17]

Tuesday, October 22, 2019

Biography of Edmund Cartwright, English Inventor

Biography of Edmund Cartwright, English Inventor Edmund Cartwright (April 24, 1743–October 30, 1823) was an English inventor and clergyman. He patented the first power loom- an improved version of the handloom- in 1785 and set up a factory in Doncaster, England, to manufacture textiles. Cartwright also designed a wool-combing machine, an instrument for making rope, and a steam engine powered by alcohol. Fast Facts: Edmund Cartwright Known For: Cartwright invented a power loom that improved the speed of textile production.Born: April 24, 1743 in Marnham, EnglandDied: October 30, 1823 in Hastings, EnglandEducation: University of OxfordSpouse: Elizabeth McMac Early Life Edmund Cartwright was born on April 24, 1743, in Nottinghamshire, England. He graduated from Oxford University and married Elizabeth McMac at the age of 19. Cartwrights father was the Reverend Edmund Cartwright, and the younger Cartwright followed in his fathers footsteps by becoming a clergyman in the Church of England, serving initially as the rector of Goadby Marwood, a village in Leicestershire. In 1786, he became a prebendary (a senior member of the clergy) of  Lincoln Cathedral (also known as St. Marys Cathedral)- a post he held until his death. Cartwrights four brothers were also highly accomplished. John Cartwright was a naval officer who fought for political reforms to the British Parliament, while George Cartwright was a trader who explored Newfoundland and Labrador. Inventions Cartwright was not only a clergyman; he was also a prolific  inventor, though he didnt begin experimenting with inventions until he was in his 40s. In 1784, he  was inspired to create a machine for weaving after he visited inventor Richard Arkwrights cotton-spinning mills in Derbyshire. Although he had no experience in this field and many people thought his ideas were nonsense, Cartwright, with the help of a carpenter, worked to bring his concept to fruition. He completed the design for his first power loom in 1784 and won a patent for the invention in 1785. Although this initial design was not successful, Cartwright continued to make improvements to subsequent iterations of his power loom until he had developed a productive machine. He then established a factory in Doncaster to mass produce the devices. However, Cartwright had no experience or knowledge in business or industry so he was never able to successfully market his power looms and primarily used his factory to test new inventions. He invented a wool-combing machine in 1789 and continued to improve his power loom. He secured another patent for a weaving invention in 1792. Bankruptcy Cartwright went bankrupt in 1793, forcing him to close his factory. He sold 400 of his looms to a Manchester company but lost the remainder when his factory burned down, possibly due to arson committed by handloom weavers who feared they would be put out of work by the new power looms. (Their fears would eventually prove to be well-founded.) Bankrupt and destitute, Cartwright moved to London in 1796, where he worked on other invention ideas. He invented a steam engine powered by alcohol and a machine for making rope, and helped Robert Fulton with his steamboats. He also worked on ideas for interlocking bricks and incombustible floorboards. Improvements to Power Loom Cartwrights power loom needed some improvements, so several inventors took on the challenge. It was improved upon by Scottish inventor William Horrocks, the designer of the variable speed batton, and also by American inventor  Francis Cabot Lowell. The power loom was commonly used after 1820. When it became efficient, women replaced most men as weavers in textile factories. Although many of Cartwrights inventions were not successful, he was eventually recognized by the House of Commons for the national benefits of his power loom. The legislators awarded the inventor a prize of 10,000 Britsh pounds for his contributions. In the end, despite Cartwrights power loom being highly influential, he received little in the way of a financial reward for it. Death In 1821, Cartwright was made a Fellow of the Royal Society. He died two years later on October 30, 1823, and was buried in the small town of Battle. Legacy Cartwrights work played a pivotal role in the evolution of textile production. Weaving was the last step in textile production to be mechanized because of the difficulty in creating the precise interaction of levers, cams, gears, and springs that mimicked the coordination of the human hand and eye. Cartwrights power loom- though flawed- was the first device of its kind to do this, accelerating the process of manufacturing all kinds of cloth. According to the Lowell National Historical Park Handbook,  Francis Cabot Lowell,  a wealthy Boston merchant,  realized that in order for America to keep up with Englands textile production, where successful power looms had been in operation since the early 1800s, they would need to borrow British technology. While visiting English  textile mills, Lowell memorized the workings of their power looms (which were based on Cartwrights designs), and when  he returned to the United States, he recruited a master mechanic named Paul Moody to help him recreate and develop what he had seen. They succeeded in adapting the British design  and the machine shop established at the Waltham mills by Lowell and Moody continued to make improvements in the loom. The first American power loom was constructed in Massachusetts in 1813. With the introduction of a dependable power loom, weaving could keep up with spinning as the American textile industry was underway. The power loom allowed the wholesale manufacture of cloth from ginned cotton, itself a recent innovation of  Eli Whitney. Though primarily known for his inventions, Cartwright was also an esteemed poet. Sources Berend, Ivn. An Economic History of Nineteenth-Century Europe: Diversity and Industrialization. Cambridge University Press, 2013.Cannon, John Ashton.  The Oxford Companion to British History. Oxford University Press, 2015.Hendrickson, Kenneth E., et al.  The Encyclopedia of the Industrial Revolution in World History. Rowman Littlefield, 2015.Riello, Giorgio.  Cotton: the Fabric That Made the Modern World. Cambridge University Press, 2015.