We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Nobody downloaded yet

The history of American technology - Research Paper Example

Comments (0)
The History of American Technology [Institution] Introduction A suspension bridge is a sort of a bridge in which the deck (the load bearing portion) is balanced below suspension cables on upright suspenders. Outside Tibet and Bhutan, where the first specimens of this style of bridge were constructed in the 15th century, this type of bridge dates to the early 19th century (Waddell, 1905)…
Download full paper
The history of American technology
Read TextPreview

Extract of sample
The history of American technology

Download file to see previous pages... It began to traffic on July 1, 1940, and radically crumpled into Puget Sound on November 7 of the same year. At the time of its erection (and its destruction), the bridge was the third lengthiest suspension bridge in the world in footings of main span length, following the Golden Gate Bridge and the George Washington Bridge. Erection of the bridge initiated in September 1938. From the time the deck was built, it started to move perpendicularly in windy situations, which made the construction workers to give the bridge the nickname Galloping Gertie. Collapse of the bridge There were no causalities in the failure of the bridge. Tubby, a black male cocker spaniel was the only mortality of the Tacoma Narrows Bridge catastrophe; he was missing along with Coatsworth's car. Professor Farquharson and a news photojournalist tried to save Tubby during a lull, but the dog was overly frightened to leave the car and bit one of the saviours (“Bridges”, 2001). Tubby deceased when the bridge tumbled, and neither his body nor the car were ever retrieved (Peters, 1987). Coatsworth had been driving Tubby back to his daughter, who possessed the dog. Coatsworth received US$450.00 for his car and US$364.40 in compensation for the contents of his car, counting Tubby. Why did it collapse? The chief clarification of Galloping Gertie's catastrophe is termed as "torsional flutter." It will help to break this complex series of occurrences into some stages. Here is a summary of the key points in the explanation. 1. In general, the 1940 Narrows Bridge had comparatively small resistance to torsional (twisting) forces. That was since; it had such a huge length-to-breadth ratio, 1 to 72. Gertie's long, narrow, and thin strengthening beams made the construction enormously flexible. 2. On the morning of November 7, 1940 just after 10 a.m., a serious event befell. The cable band at mid-span on the north, slithered. This permitted the cable to detach into two uneven parts. That contributed to the transformation from perpendicular (up-and-down) to torsional (twisting) driving of the bridge deck. 3. Also backing up to the torsional movement of the bridge deck was "vortex shedding." In short, vortex shedding arose in the Narrows Bridge as follows: (1) Wind disjointed as it hit the side of Galloping Gertie's deck, the 8-foot compact plate support. A minor amount of torsioning happened in the bridge deck, since even steel is elastic and varies from under high strain. (2) The turning bridge deck triggered the wind flow parting to surge. This fashioned a vortex, or spinning wind force, which additionally lifted and twisted the deck. (3) The deck construction repelled this lifting and twisting. It had an expected affinity to return to its earlier position. As it returned, its hastiness and direction corresponded with the lifting energy. In other words, it moved “in phase" with the vortex. Then, the wind fortified that movement. This shaped into a "lock-on" occurrence. 4. But, the outside force of the wind only, was not adequate to instigate the severe twisting that caused the Narrows Bridge to fail. 5. Now the deck movement went into "torsional flutter." When the bridge’s motion altered from vertical to torsional oscillation, the construction absorbed extra wind energy. The bridge deck's ...Download file to see next pagesRead More
Comments (0)
Click to create a comment
American History
Like most of the South, after the failures at Jamestown, it became a major agricultural producer. Mismanagement caused by the economic incentives, poor coordination with the natives who knew the area better, and other factors doomed the initial settlements lose tens of thousands of people.
1 Pages(250 words)Dissertation
American history of business 1865-present
It encompasses great political, economical, social, and cultural revolutionary actions that were undertaken concurrently. Business entails the sum-total of activities that are done at a particular period with the intention of generating profitable outcomes.
10 Pages(2500 words)Research Paper
American History between 1820-1920
The ubiquitous presence of brands and multinationals was unimaginable and America was still discovering itself as a country. The United States was new and working towards making itself a global powerhouse. In this paper we travel through each decade starting from 1820 to 1920.
7 Pages(1750 words)Research Paper
American History
For instance, the federalists claimed that people are sovereign, meaning that people are the origin of both the national and state governments, and that both governments should be responsible to them. The anti-federalists on the other hand, argued that the nation should be made up of states to which people give total sovereignty, and which in turn develop a central government with specific powers, for instance carrying out foreign affairs and protecting the nation against foreign antagonism (Morton, 2006).
3 Pages(750 words)Research Paper
How technology has affected history
Without it, life would have been the same since the dawn of humankind. Probably buildings, electricity, computers and vehicles will not exist without the advancement in knowledge through scientific applications. As the knowledge and technology progress quickly, processes and activities of people are hastened and become more efficient.
8 Pages(2000 words)Research Paper
American History
Firstly, the researcher discusses the topic of factors that led to the emergence of American middle class. Secondly, the researcher describes the quest of Indian removal. Thirdly, the researcher analyzes the Oregon tress and stages of developing a frontier as well as abolitionism of the American slave practices.
3 Pages(750 words)Research Paper
The history of American technology
As compared to other countries, United States adopted technology more than two centuries ago. Even though the technology at that time was not as developed as now, it was still significant in increasing the country production capacity. Coca-Cola Company is a US based company that deals with large types of brands.
8 Pages(2000 words)Research Paper
American history
The servitude of African-Americans at the hands of white masters is an infamous chapter in the annals of American history but an episode which deserves wider scrutiny. Although American slavery
1 Pages(250 words)Research Paper
American History
Although the motto of the United States is “E Pluribus Unum” (Out of many, one), Americans have been more divided than united between 1865 and 1980. It can be seen that between 1865 to 1980 Americans were divided in many
9 Pages(2250 words)Research Paper
History of Media and technology
It could be via title, date, or contributions. It gives the list of newspapers along with popular search engines in the context, with possible exit of print media from the
13 Pages(3250 words)Research Paper
Let us find you another Research Paper on topic The history of American technology for FREE!
Contact us:
Contact Us Now
FREE Mobile Apps:
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us