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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Bonus Bridge Paper Transportation is key in today’s society. It’s all about getting from one place to another in the quickest way possible. The inconvenience of going around something or going directly through can be tiring and can take up a lot of time. That’s where bridges come in. A bridge is a structure carrying a road‚ path or railroad across bodies of water‚ other roads or any object that may be an obstacle. Although there are many different types of bridges‚ they all deal with compressible
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Suspension bridge – A parabola What is meant by suspension bridge? A suspension bridge is a type of bridge in which the deck (the load-bearing portion) is hung below suspension cables on vertical suspenders. Outside Tibet and Bhutan‚ where the first examples of this type of bridge were built in the 15th century‚ this type of bridge dates from the early 19th century. Bridges without vertical suspenders have a long history in many mountainous parts of the world. Structure of suspension bridge – This
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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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The very first bridges were made by nature itself‚ as simple as a log fallen across a stream or stones in the river. The first bridges made by humans were probably spans of cut wooden logs or planks and eventually stones‚ using a simple support and crossbeam arrangement. Some early Americans used trees or bamboo poles to cross small caverns or wells to get from one place to another. A common form of lashing sticks‚ logs‚ and branches together involved the use of long reeds or other harvested fibers
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PAPER BRIDGE COMPETITION (GROUP PROJECT) OBJECTIVES: To construct a free span paper bridge that is capable of supporting a number of weights. The best score is achieved by total weight supported. SPESIFICATIONS: The bridge must be constructed from only paper and tape. Standard 4 pieces A4 paper size up to 80 GSM only can be used. The bridge span must be the A4 paper width. Glue can be used to join the members; for example‚ along the seam of a tubular member or at a point where two or
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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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The trestle bridge is built with lateral and angled bracing‚ and horizontal and vertical reinforcements; to ensure the bridge can bear maximum weight. The base of the bridge is simply constructed with lateral bracing which is connected by horizontal panels that are connected to a horizontal‚ upright‚ panel on either side. Although‚ engineers rarely place lateral bracing on the base‚ it provides for extra stability. Moreover‚ the base also has upright and angled Popsicle sticks connected to the lateral
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I started going to the Bridge‚ on August for summer classes. My first day at the Bridge International school was wonderful. When I arrived at the Bridge International School‚ I did not know what to expect‚ but my first day was amazing. I saw some old friends that I was schooling in the same school with‚ before the Bridge. I made new friends who were kind‚ funny and interesting. I did not know people at the Bridge International School would be that nice. I found some subjects hard‚ because I
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