Monday, April 22, 2013

History of Railways


History of Railways



1.Early history

   The invention of the railway started in the 16th century. The road of the rail was called a wagonway; it was called a wagonway, because of the horses, which pulled wagons on the rails, and it was the start of modern railroads. After two centuries of inventing the wagonways the wood in wheels and in the rails had been replaced by iron because it can last longer than wood. In 1789, William Jessup from England designed the flanged wheels for the first wagons which were grooved and had better grip on the rail.
Steam engines made a great jump to the invention of the modern railroad and trains. There was a man called Samuel Homfray in the 19th century who wanted to change and replace the horse-drawn carts by a steam-powered vehicle, but he didn’t build it. After him came Richard Trevithick and he built the first steam-powered vehicle. The first trip for it was on 22nd  February 1804; it  took nearly two hours between Darron in the town of  Merthyr Tydfil in Wales to the bottom of the valley, which is called Abercynnon. It pulled a load of 10 tons of iron at a distance of nearly 9 miles carrying 70 men and five extra wagons.


2.Development

Using Railways is not a new thought because the idea of  "tracked" roads is at least 2000 years old; quarries in Ancient Greece and the Roman Empire used cut stone tracks to haul loads pulled by animals, as the Greek did for transporting ships overland. Then man started to use wagons, with man or horse power, and track guides made of stone or wood. Historians do not agree upon the exact origins of rail transport; some look upon early conveyances that involved some sort of wheeled device mounted on a system of wood rails as the forerunner to modern rail transport; others tend to consider the real history of rail transport as beginning with the development of the steam engine. With the steam engine came the idea of creating a conveyance that would move by using steam pressure to turn the wheels on the device. In order for this type of railway transport to function, metal tracks were laid down and connected with heavy wood ties on the underside of the track. The ties kept the two rails in proper alignment and helped to make the locomotive more stable when moving along the track system.

3.Present

Created in the late 18th century, the steam engine was a major factor in the Industrial Revolution of the 19th century. Over time, railcar transportation became exceedingly popular for not only the transport of livestock and goods, but also for the transport of humans. Railcar transport continued to evolve during the first half of the 20th century. Further refinements allowed the steam engine to handle the transportation of goods and people. Railways were improved with the implementation of electrical transmission to augment the steam locomotive, while the creation of diesel locomotion after World War II helped rail transport to remain a viable option, for the transport of people and manufactured goods. While there were those who predicted the demise of rail transport, this form of transportation continues to operate. In recent years, major railways have found ways to compete with other forms of ground transportation and light rail transit. Trams appeared as a public transport using a steel-tracked fixed guide way that operates primarily along an exclusive right of way and has vehicles capable of operating as single or as multiple units. LRT, providing a swift conveyance to and from a limited number of locations has also proven to be a viable alternative to flying or driving in some cases.

Present time


Created in the late 18th century, the steam engine was a major factor in the Industrial Revolution of the 19th century. Over time, railcar transportation became exceedingly popular for not only the transport of livestock and goods, but also for the transport of humans. Railcar transport continued to evolve during the first half of the 20th century. Further refinements allowed the steam engine to handle the transportation of goods and people. Railways were improved with the implementation of electrical transmission to augment the steam locomotive,while the creation of diesel locomotion after World War II helped rail transport to remain a viable option, for the transport of people and manufactured goods. While there were those who predicted the demise of rail transport, this form of transportation continues to operate. In recent years, major railways have found ways to compete with other forms of ground transportation and light rail transit. Trams appeared as a public transport using a steel-tracked fixed guide way that operates primarily along an exclusive right of way and has vehicles capable of operating as single or as multiple units. LRT, providing a swift conveyance to and from a limited number of locations has also proven to be a viable alternative to flying or driving in some cases.

210 words.

Development


Using Railways is not a new thought because the idea of  "tracked" roads is at least 2000 years old; quarries in Ancient Greece and the Roman Empire used cut stone tracks to haul loads pulled by animals, as the Greek did for transporting ships overland. Then man started to use wagons, with man or horse power, and track guides made of stone or wood. Historians do not agree upon the exact origins of rail transport; some look upon early conveyances that involved some sort of wheeled device mounted on a system of wood rails as the forerunner to modern rail transport; others tend to consider the real history of rail transport as beginning with the development of the steam engine. With the steam engine came the idea of creating a conveyance that would move by using steam pressure to turn the wheels on the device. In order for this type of railway transport to function, metal tracks were laid down and connected with heavy wood ties on the underside of the track. The ties kept the two rails in proper alignment and helped to make the locomotive more stable when moving along the track system.

195 words.

Saturday, April 20, 2013

History of railways



1       Early history

   The invention of the railway started in the 16th century. The road of the rail was called a wagonway; it was called a wagonway, because of the horses, which pulled wagons on the rails, and it was the start of modern railroads. After two centuries of inventing the wagonways the wood in wheels and in the rails had been replaced by iron because it can last longer than wood. In 1789, William Jessup from England designed the flanged wheels for the first wagons which were grooved and had better grip on the rail.

Steam engines made a great jump to the invention of the modern railroad and trains. There was a man called Samuel Homfray in the 19th century who wanted to change and replace the horse-drawn carts by a steam-powered vehicle, but he didn’t build it. After him came Richard Trevithick and he built the first steam-powered vehicle. The first trip for it was on 22nd  February 1804; it  took nearly two hours between Darron in the town of  Merthyr Tydfil in Wales to the bottom of the valley, which is called Abercynnon. It pulled a load of 10 tons of iron at a distance of nearly 9 miles carrying 70 men and five extra wagons.

213 words.

Wednesday, March 13, 2013

The first reflection


My first summary in this course was about desert policemen. It talks about how policemen could make the safe. Our teacher taught us how to write good summaries about the articles; he said that we should understand the main idea first. After that we should leave out the names and the quotations. This summary was practice for the lesson.
    Our second summary was about road crash, and most of it was about children’s safety. Hedley taught us how to use the words in the paragraph and how to take the main idea from it and summarize it. He corrected our mistakes after giving it to him; after that he give it back so we can know our mistakes. This summary has 10 percent from the overall grade.
   The third summary was about pearl diving and its history. It talks about how the pearl diving was getting less famous by time. Most of this summary talks about the past, present and what would they do to make safe their tradition. Our teacher taught us in this summary that we need some dates, names and numbers. But we can summarize without using them a lot.

193 words.