Different Types of Bridges Essay -- miscellaneous

Different Types of Bridges The quest for travel has always been one that man has tried to conquer. First, he traveled on foot, and then developed methods of transportation such as boats, but one of the first obstacles that he had to overcome was getting across rivers, waterways, and canals. Today, bridges have become a part of everyday life; hence without them, people would have a much more difficult time going from one place to another. In the United States alone, there are more than half a million bridges (History of Bridges 1). Although bridges have been in existence since ancient times, they were not first made by man. Nature actually made the first bridges by toppling logs across streams. This was considered the first beam bridge as the flat rocks were used to support the log. Then, the water eroded the rocks and eventually a stone bridge was formed. The ancient Romans built arched bridges because they needed roads and bridges to connect the sections of their empire. The original swing bridge, from which the suspension bridge was produced, was a simple vine that swung people over the water. From these beginnings, men created four main types of bridges. To begin with, beam bridges, also known as girder bridges, are one of the easiest and simplest types of bridges to build. In ancient times, people used to make these bridges out of granite. Beam bridges can be made by putting a wooden plank over an area needing to be crossed. To get across larger areas, piers or supports can be fabricated up from the river bed to hold up a couple of beams. The piers of the girder bridge have constant pressure on them. Therefore, the beams, which are usually made out of concrete or steel, have a lot of strength so they do not crumble due to the heavy load. Many beam bridges are made of pre-stressed concrete. This concrete has steel rods inside of it, which help resist tension. When the weight pushes down on a bridge, the top of the beams are pressed together creating compression, while the bottom edge is stretched and causes tension. Beam bridges are not practical in cities with a lot of high rises, because the bridge has very low clearance. The bigge st limitation of the girder bridge is its length. The farther apart the piers are, the weaker the bridge gets. Beam bridges are good to use on spans of up to two hundred feet ( How Bridges Work 1). A bridge of greater... ... long way (Bridges 3). A cable-stayed bridge is used to cross medium lengths, which are approximately five hundred feet to two thousand eight hundred feet (Bridges 3). The cable-stayed bridge requires less cable than a suspension bridge, and is much faster to build in comparison to suspension bridges. Cable stayed bridges are supported by stave towers. These towers are ‘A’ shaped, and absorb almost all of the bridge’s compression. Unlike suspension bridges, cable stayed bridges only have two towers and do not need any anchorages. Now that man has overcome the obstacle of getting across rivers, canals, and waterways efficiently, it is now time to perfect these human creations so no more mishaps happen. Even though people keep hearing about collapsing bridges, they still use them because it has become a part of their everyday life style. Without bridges, people would have a difficult time getting from one place to another. It could be done by means of a ferry or other boat, but that is time consuming and a real pain in the neck because once a person gets across the river or canal, they would have to walk everywhere. So, without bridges, things would not be the way they are today.

Planning a Party Essay

Planning a party takes time and requires focus. You want to make sure you get everything covered and don’t leave out any details. You need to find a location, possibly a public venue or even your own home. Will you have a theme or keep it casual? Not only is the location important but who will be your party guests? You want to know who will be attending and where so that you can make proper arrangements for food, beverages, party favors and decorations. Finding the proper location for a party can be tricky. You will need to make sure that the venue can hold enough people depending on the size of the party. Do your research online first and see what sort of businesses in your area offer space to rent. Will there be enough parking available? Is the date of your party available at the time and location you chose? These are all important questions to ask while planning. Don’t forget to make a reservation or schedule a walk through. You may find the perfect place to host your party and choose to change your date. It all depends on what you want and what details are important to you. Once you have decided on your party venue and what your theme will be, if you decide to have one, then it’s time to start making a list of who you will be inviting. Remember just because you invite someone it does not mean they will be attending. This is when it becomes a good time to add an R.S.V.P to your invitation so you can get a better idea of the number of people who will actually be attending. If your guests will be allowed to bring someone make sure you put that on the invitation as well. Date, time and the type of dress are also important to include. You may choose to send a paper invite through the mail or send your invite by email. When choosing your invitation you can get creative with your theme or keep it basic. Next you have the task of tackling the details, food, drinks, decorations and party favors. If you choose to have food at your party be sure to plan ahead. Keep in mind the number of guests expected to attend and the age group. Catering is always an option or you may choose to make food or snacks on your own. When selecting beverages you may want to select a few options so that your guests have choices. When selecting decorations recruit the help of a friend or two for an outside opinion and help setting up. If your party will be themed try and stick to your theme while decorating. Getting a list together of what you would like can save you time. Party favors can be a fun way to thank your guests for attending and give them something to remember your party. There are loads of ideas online that you can use to get creative. Once you have all your ideas and details in place then your party is ready to come to life. There are so many options out there that can make your party just what you want it to be. Just remember to stay calm; getting stressed or discouraged will not make the process any fun. If you need help with something don’t be afraid to ask a friend. There are so many choices to make and endless possibilities. Give yourself adequate time to prepare. When it comes time for the party try to have fun and enjoy what you have created. If your guests see that you are relaxed and enjoying yourself they will relax and have a good time.

Associate Program Material Essay

Hard Drive Hard drives are complex storage devices in a computer. When installing a hard drive, you must consider numerous interface standards. You also must think about specific factors, such as the computer’s application, the type of motherboard, speed and noise, gigabyte barriers, subsystems, future storage needs, and archival issues. Refer to Ch. 8 of A+ Guide To Managing & Maintaining Your PC for a deeper understanding of these issues. You may measure hard drive performance by looking at three different sources of information. The first is the data rate, the number of bytes per second the driver can deliver to the processor. The second is the seek time, the amount of time it takes when the processor requests information from the driver and the first byte of information is delivered to the processor. The third is the memory capacity of the hard drive. For this assignment, you replace the internal hard drives from the computer featured in the Computer Hardware Simulator (CHS). The current internal hard drives are old and starting to fail. You need to replace the current hard drives with similar drives or drives with more storage capacity. Search the Internet for three types of hard drives compatible with the CHS computer, and enter your information for each drive into the New Hard Drive Chart below. After comparing the two drives, make a recommendation on which you would purchase and justify your decision. You only have a budget of $45 to work with, so choose carefully.

“Digging” Analysis Essay

In many families, fathers take pride in receiving remarks regarding their sons such as â€Å"He’s a chip off the ol’ block† or â€Å"like father like son,† often exalting the sons who have followed in their fathers’ vocational footsteps. In â€Å"Digging,† by Seamus Heaney, the speaker describes the quintessential potato farming tradition that his father and grandfather partake in, while the speaker himself observes through a window barrier. Seamus Heaney, through his use of imagery, repetition, and extended metaphors, reveals his feelings in straying away from Irish tradition to follow his own path in writing. In his poem, Heaney utilizes imagery to further emphasize the speaker’s action in choosing a different job than potato farming. The speaker begins at a windowsill, with a â€Å"squat pen† resting â€Å"as snug as a gun† in his hand. Heaney’s description connotes a sense of defense, almost as if the narrator sees himself as an old wilderness-survival junkie, sitting on the porch with a gun to defend his property from government officials, but in â€Å"Digging,† the speaker defends his choice in jobs. Later on in the poem, the speaker describes the actions of a potato harvester, who must endure the â€Å"cold smell of potato mold [and] the squelch and slap of soggy peat.† Heaney’s images of mold and soggy mud convey the speaker’s true feeling and apprehension toward the sickening, gross environment in which his father and grandfather work. In the same way, Heaney’s repetition further alludes to the speaker’s need and desire to write. In the first and last stanzas of the poem, the speaker repeats the same sentence: â€Å"Between my finger and my thumb / The squat pen rests.† As a starting point in the poem, the speaker directly jumps to his comfort zone—describing his love for putting pen to paper, yet as an ending note, the narrator reemphasizes his possession of not only the pen, but of his life choices. Also, Heaney often uses the word â€Å"digging† as a separate prepositional phrase during a sentence, reiterating the word to simply give the reader a sense of the mundane life his father is living. There are no adverbs surrounding the word; simply put, the speaker evokes a sense of nothingness that is associated with â€Å"digging† a hole in the ground, only to fill said hole with a potato and cover it back up—a menial task for which he has no inclination. Again, Heaney repeats some phrases in order to accentuate his aversion to the job of potato harvesting. Lastly, Heaney implements extended metaphors throughout his poem to subtly convey his feelings towards his father’s tradition. As stated earlier, the repetition of â€Å"digging† also connotes a deeper meaning—the speaker, while also observing his father literally dig through the mud and peat, figuratively digs through his memories of his family, recalling the days when he would help his grandfather out in â€Å"Toner’s bog.† In the second to last verse, the speaker alludes to revisiting the past by stating the â€Å"living roots awaken in my head.† The roots, although they can refer to the physical roots in the ground, symbolize the narrator’s family roots in potato farming, a culture that is associated with digging into the ground to find food and money in the form of potatoes. In the end, the speaker ends the metaphor of digging, noting he will â€Å"dig,† but not with the spade, but with his pen. Seamus Heaney’s poem â€Å"Digging† tells a tale of a man musing about his decision to leave behind family convention. Heaney employs a series of images that convey the speaker’s feelings, repetition to show the narrator’s dislike of potato harvesting, and metaphors to provide an underlying message about tradition. In the end, the speaker is left commenting on the spade, his father and grandfather’s tool of choice, while he himself chooses the pen.

Demand and Supply Analysis Term Paper Example | Topics and Well Written Essays - 750 words

Demand and Supply Analysis - Term Paper Example Economists assume all factors are held constant (ie do not change) except one – the price of the product itself. A change in a factor being held constant invalidates the ceteris paribus assumption. (Riley, 2006) There is an income effect when the price of a good falls because the consumer can maintain current consumption for less expenditure.   Provided that the good is normal, some of the resulting increase in real income is used by consumers to buy more of this product.  (Riley, 2006) There is also a substitution effect when the price of a good falls because the product is now relatively cheaper than an alternative item and so some consumers switch their spending from the good in competitive demand to this product. (Riley, 2006) Firstly, there is a profit motive. Whether the increases in market prices (for example, after a surge in demand), it is more advantageous for companies to increase production. Signs of higher prices for companies that can increase profits by market demand. Production and cost: With increasing production, increasing production costs of a company, so a higher price is necessary to justify the additional production and cover the additional costs of production. New competitors enter the market: rising prices create an incentive for other companies to enter the market leading to increased supply. The price where the demand and supply meet is known as equilibrium price or market price. This is the point where the buyers and sellers come together at a common point. In a market a good will always be traded at its market price as this maintains equilibrium between the supply and the demand. (Sloman, 2006) The outward shift in the demand curve causes a movement (expansion) along the supply curve and a rise in the equilibrium price and quantity.   Firms in the market will sell more at a higher price and therefore receive more in total revenue. Similarly a backward/inward shift creates the opposite

Use of sound and music in the film Psycho by Alfred Hitchcock Research Paper

Use of sound and music in the film Psycho by Alfred Hitchcock - Research Paper Example When music and sound are used efficiently in a movie, a certain flow that comes up that makes the movie seem to fit better. The 1960 Alfred Hitchcock horror movie ‘Psycho’ is a perfect example of movies massively relying on the process and technique of music and sound editing (Khairy 09). The ultimate aim of this context is to examine the use of sound and music in the movie Psycho. It specifically looks on how music and sound was used to convey suspense. To begin with, Alfred Hitchcock is believed to be the ‘master of suspense’ and an immense leader. Psycho created in 1960 was one of his great movies that were one top ten of the American Film Institute’s top breathtaking films (Kolker 12). Hitchcock has a tendency of using suspense and tension to shock his audience. He achieves this through efficient use of cinematography and correct position of camera, use of movement, angles and shots. He also managed to employ scary music and lighting when he intended to shock his audience or generate suspense (Schickel and Capra 29). However, he misleads his audience to come up with shock but at least that is expected in a horror movie. At the start of the film, Marion Crane and Sam Loom are seen in the bedroom together. This seemed to suggest that it was a love and romantic story but after stealing the money from her boss, then it is believed the genre of the movie is about crime. Nevertheless, the genre of this film was not about romance or even crime, it was a thriller where the main character died a third way through the film. That is too shocking and unexpected because she was the main character and a good person as well (Kolker 12). Another suspense and shock came when the audience realized that Norman Bates dresses like his â€Å"mother† in women’s clothing, which comes up odd and bizarre. Besides, untrue suspense makes shocks more shocking in the sense that the audience never

Functional Systems Case Study Example | Topics and Well Written Essays - 500 words

Functional Systems - Case Study Example Basically, the Lynx Company is using the sales information system. In this scenario, this system collects sales data to help the company monitor sale transactions and to help the management understand the status of their organizations, whether their business is running in profit or in loss (Shah, 2009; Beaubien, 2013). The system has been a great success for the company and some of the reasons behind this success are outlined below: 1. The system is designed for a particular purpose (e.g. Sales system). So it specifically deals with sales functions and minimizes confusions with other departments. It is easy for the sales department to understand the functions and carry put tasks effectively using this system. 2. As discussed above, this system is an isolated system. In this scenario, it is not connected to any other system such as human resource system or decision support system. So it is much easier for staff members to operate it independently without requiring the data from other departments. 1. In view of the fact that this functional system is based on a particular function (e.g. sales system) so the flow of work and information between other departments can suffer. For instance, it can be difficult to connect this system with other systems such as decision support system or human resource systems. Or in some cases there can emerge various data integration issues (Beaubien, 2013). 2. Since this functional system operates over the Internet so information security can be a serious challenge. The system can face security attacks from hackers. In addition, the system can also face virus attacks which can destroy the entire data (Henderson, 2013). 4. In order to perform accurate working there would be need to train the staff members. Since this system deals with money matters so a small error can cause serious loss for the company. In this scenario, they must train their staff members so it is an extra burden on the company (Henderson,