A Wheatstone bridge is an electrical circuit used to measure an unknown electrical resistance by balancing two legs of a bridge circuit‚ one leg of which includes the unknown component. Its operation is similar to the original potentiometer. It was invented by Samuel Hunter Christie in 1833 and improved and popularized by Sir Charles Wheatstone in 1843. One of the Wheatstone bridge’s initial uses was for the purpose of soils analysis and comparison.[1] -------------------------------------------------
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The Bridge of the Americas The Bridge of the Americas (Spanish: Puente de las Américas; originally known as the Thatcher Ferry Bridge) is a road bridge in Panama‚ which spans the Pacific entrance to the Panama Canal. Completed in 1962‚ at a cost of US$20 million‚ it was the only non-swinging bridge (there are two other bridges‚ one at the Miraflores locks and one at the Gatun locks) connecting the north and south American land masses until the opening of the Centennial Bridge in 2004. The bridge
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Zhaozhou Bridge The well-known Zhaozhou Bridge‚ also known as Anji Bridge and the Great Stone Bridge‚ was designed and built by a craftsman named Li Chun in the years 595-605 during the Sui Dynasty(A.D 581-618). The bridge is located in the southern part of Hebei Province in China and spans above the Xiao River. It is the world’s oldest and the most well-preserved open-spandrel stone segmental arch bridge. The Zhaozhou Bridge is not only a practical means of transportation but also illustrates
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------------------------------------------------- Brooklyn Bridge This essay introduces the Brooklyn Bridge. The Bridge is located in America over the East river; the nearest city to the bridge is New York and Manhattan‚ Brooklyn. After 60 years of political‚ financial and technical discussions to start the construction of the Brooklyn Bridge it was approved. The Bill to start construction was signed in 1869 by the New York Bridge company president‚ Ulysses S Grant. The cost of the original
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INTRODUCTION A View from the Bridge is a play by American playwright Arthur Miller that was first staged on 1955. At the beginning was considered as a one-act verse drama but then it subsequently revised the play to contain two acts. The Drama presents different society taboos that happened at that time in the United States such as migration‚ sex-war‚ maleness and homosexuality. ANALYSIS It is set in 1950s‚ in an American neighborhood near the Brooklyn Bridge NY; where most of the European
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Bridge to Terabithia In most novels involving children‚ the endings are clear-cut happy endings with the children learning a valuable life lesson in the process of their adventures. An exception to this is Katherine Paterson’s Bridge to Terabithia. Though the valuable life lesson is still present in the story‚ its acquisition comes at a terrible price‚ effectively breaking the myth that life will always work out happily. Katherine Paterson is said to have written this novel based on something
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Aware of the difficulties that travellers have with transportation and budget‚ Youth Escapade has cooperated with Rapid Penang and provided mini shuttle busses to help its’ customers arrive to the town corresponding to the location of their booked accommodation safely at ease. Upon arrival at the station‚ travellers must present their room booking number to the driver in order to get on the mini bus shuttle. The mini shuttle busses will leave and return every 45 minutes at all stations and stops
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Notorious Brooklyn Bridge When you hear the word bridge‚ I’m sure the first thing that comes to mind is connection. Yes‚ connection is such a vague word when we talk about a bridge but it blossoms in variety and definitions when we specify the Brooklyn Bridge. The Brooklyn Bridge is the first bridge built in New york City 1883. The first of many construction work that would build the well known juggernaut of a city that we have here today. Many people view the Brooklyn Bridge as a symbol of new
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Suspension bridges come in two different designs: the suspension bridge‚ recognized by the elongated ’M’ shape‚ and the less-common cable-stayed design‚ which has more of an ’A’ shape. The cable-stayed bridge does not require two towers and four anchorages as does the suspension bridge. Instead‚ the cables are run from the roadway up to a single tower where they are secured. Forces on a cable-stayed bridge A cable-stayed bridge near Savannah‚ Georgia‚ USA A typical cable-stayed bridge is a continuous
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Tacoma Narrows Bridge A lot of things can go wrong when building or designing a major building‚ plane‚ bridge‚ or even a road. Engineers face the challenges to overcome these flaws or problems everyday when they are trying to design structures. The primary causes of engineering disasters are usually: Human factors‚ design flaws‚ material failures‚ extreme conditions or environments‚ and combinations of these reasons put together. There are many things an engineer has to look for when designing
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