1.
Geographic coordinate system
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A geographic coordinate system is a coordinate system used in geography that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are chosen such that one of the numbers represents a vertical position. A common choice of coordinates is latitude, longitude and elevation, to specify a location on a two-dimensional map requires a map projection. The invention of a coordinate system is generally credited to Eratosthenes of Cyrene. Ptolemy credited him with the adoption of longitude and latitude. Ptolemys 2nd-century Geography used the prime meridian but measured latitude from the equator instead. Mathematical cartography resumed in Europe following Maximus Planudes recovery of Ptolemys text a little before 1300, in 1884, the United States hosted the International Meridian Conference, attended by representatives from twenty-five nations. Twenty-two of them agreed to adopt the longitude of the Royal Observatory in Greenwich, the Dominican Republic voted against the motion, while France and Brazil abstained. France adopted Greenwich Mean Time in place of local determinations by the Paris Observatory in 1911, the latitude of a point on Earths surface is the angle between the equatorial plane and the straight line that passes through that point and through the center of the Earth. Lines joining points of the same latitude trace circles on the surface of Earth called parallels, as they are parallel to the equator, the north pole is 90° N, the south pole is 90° S. The 0° parallel of latitude is designated the equator, the plane of all geographic coordinate systems. The equator divides the globe into Northern and Southern Hemispheres, the longitude of a point on Earths surface is the angle east or west of a reference meridian to another meridian that passes through that point. All meridians are halves of great ellipses, which converge at the north and south poles, the prime meridian determines the proper Eastern and Western Hemispheres, although maps often divide these hemispheres further west in order to keep the Old World on a single side. The antipodal meridian of Greenwich is both 180°W and 180°E, the combination of these two components specifies the position of any location on the surface of Earth, without consideration of altitude or depth. The grid formed by lines of latitude and longitude is known as a graticule, the origin/zero point of this system is located in the Gulf of Guinea about 625 km south of Tema, Ghana. To completely specify a location of a feature on, in, or above Earth. Earth is not a sphere, but a shape approximating a biaxial ellipsoid. It is nearly spherical, but has an equatorial bulge making the radius at the equator about 0. 3% larger than the radius measured through the poles, the shorter axis approximately coincides with the axis of rotation
2.
New River (Broward County, Florida)
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The New River is a tidal estuary in South Florida, United States. The river is connected to the Everglades through a series of man made canals, after passing through Fort Lauderdale, the river connects to the Atlantic Ocean at Port Everglades cut. The river is entirely within Broward County and is composed from the junction of three canals which originate in the Everglades, splitting off from the Miami Canal. The report of the Writers Project attributed the noise and shaking to an earthquake collapsed the roof of an underground river. The English name is derived from early explorers maps, the mouth of the river was noted for its tendency to continuously change its entry point into the Atlantic Ocean through the shifting sand of the barrier island. Each time the coast was surveyed and charted the entry point would have shifted, so the location of the mouth would not be on any previous maps, and from off the coast would appear as if it had just developed. With each charting, the location would be recorded with the new river. Since that was the used on the maps, that was the name by which the first settlers came to know it. The area along the New River was occupied in prehistoric times by people of the Glades culture, at the time of first contact with Europeans, Tequesta people lived in the area. The Tequesta were gone by the middle of the 18th century, by the 1830s, white settlers had established the New River settlement along the river. The settlers fled the area with the start of the Second Seminole War, the first fort was where the North and South Forks joined. The fort was moved to Tarpon Bend, and then to the barrier island near present-day Bahia Mar. A trading post established in the 1890s by Frank Stranahan at a crossing of the New River became the nucleus of the city of Fort Lauderdale. Years later, Mrs. Ivy Stranahan recollected that in the days of the trading post. Prior to the 20th century, the New River originated as two streams, the North Fork and South Fork, which merged and connected directly to the Atlantic Ocean via the now defunct New River Inlet, the river was heavily modified in the first half of the 20th century. The South New River Canal also connects to the Dania Cutoff Canal, snow-Reed Swing Bridge Media related to New River at Wikimedia Commons
3.
Fort Lauderdale, Florida
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Fort Lauderdale /ˌfɔərt ˈlɔːdərdeɪl/ is a city in the U. S. state of Florida,28 miles north of Miami. It is the county seat of Broward County, as of the 2010 census, the city had a population of 165,521. It is a city of the Miami metropolitan area, which was home to an estimated 6,012,331 people at the 2015 census. The city is a popular tourist destination, with an average temperature of 75.5 °F and 3,000 hours of sunshine per year. Greater Fort Lauderdale which takes in all of Broward County hosted 12 million visitors in 2012, the district has 561 hotels and motels comprising nearly 35,000 rooms. Forty six cruise ships sailed from Port Everglades in 2012, greater Fort Lauderdale has over 4,000 restaurants,63 golf courses,12 shopping malls,16 museums,132 nightclubs,278 parkland campsites, and 100 marinas housing 45,000 resident yachts. Fort Lauderdale is named after a series of forts built by the United States during the Second Seminole War, the forts took their name from Major William Lauderdale, younger brother of Lieutenant Colonel James Lauderdale. William Lauderdale was the commander of the detachment of soldiers who built the first fort, however, development of the city did not begin until 50 years after the forts were abandoned at the end of the conflict. The area in which the city of Fort Lauderdale would later be founded was inhabited for more two thousand years by the Tequesta Indians. For the Tequesta, disease, coupled with continuing conflict with their Calusa neighbors, although control of the area changed between Spain, United Kingdom, the United States, and the Confederate States of America, it remained largely undeveloped until the 20th century. The Fort Lauderdale area was known as the New River Settlement before the 20th century, in the 1830s there were approximately 70 settlers living along the New River. William Cooley, the local Justice of the Peace, was a farmer and wrecker, who traded with the Seminole Indians. On January 6,1836, while Cooley was leading an attempt to salvage a ship, a band of Seminoles attacked his farm, killing his wife and children. The first United States stockade named Fort Lauderdale was built in 1838, the fort was abandoned in 1842, after the end of the war, and the area remained virtually unpopulated until the 1890s. The city was incorporated in 1911, and in 1915 was designated the county seat of newly formed Broward County, Fort Lauderdales first major development began in the 1920s, during the Florida land boom of the 1920s. The 1926 Miami Hurricane and the Great Depression of the 1930s caused a deal of economic dislocation. In July 1935, an African-American man named Rubin Stacy was accused of robbing a woman at knife point. He was arrested and being transported to a Miami jail when police were run off the road by a mob, a group of 100 white men proceeded to hang Stacy from a tree near the scene of his alleged robbery
4.
Florida
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Florida /ˈflɒrᵻdə/ is a state located in the southeastern region of the United States. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia, to the east by the Atlantic Ocean, Florida is the 22nd-most extensive, the 3rd-most populous, and the 8th-most densely populated of the U. S. states. Jacksonville is the most populous municipality in the state and is the largest city by area in the contiguous United States, the Miami metropolitan area is Floridas most populous urban area. The city of Tallahassee is the state capital, much of the state is at or near sea level and is characterized by sedimentary soil. The climate varies from subtropical in the north to tropical in the south, the American alligator, American crocodile, Florida panther, and manatee can be found in the Everglades National Park. It was a location of the Seminole Wars against the Native Americans. Today, Florida is distinctive for its large Cuban expatriate community and high population growth, the states economy relies mainly on tourism, agriculture, and transportation, which developed in the late 19th century. Florida is also renowned for amusement parks, orange crops, the Kennedy Space Center, Florida has attracted many writers such as Marjorie Kinnan Rawlings, Ernest Hemingway and Tennessee Williams, and continues to attract celebrities and athletes. It is internationally known for golf, tennis, auto racing, by the 16th century, the earliest time for which there is a historical record, major Native American groups included the Apalachee, the Timucua, the Ais, the Tocobaga, the Calusa and the Tequesta. Florida was the first part of the continental United States to be visited and settled by Europeans, the earliest known European explorers came with the Spanish conquistador Juan Ponce de León. Ponce de León spotted and landed on the peninsula on April 2,1513 and he named the region La Florida. The story that he was searching for the Fountain of Youth is a myth, in May 1539, Conquistador Hernando de Soto skirted the coast of Florida, searching for a deep harbor to land. He described seeing a wall of red mangroves spread mile after mile, some reaching as high as 70 feet. Very soon, many smokes appeared along the whole coast, billowing against the sky, the Spanish introduced Christianity, cattle, horses, sheep, the Spanish language, and more to Florida. Both the Spanish and French established settlements in Florida, with varying degrees of success, in 1559, Don Tristán de Luna y Arellano established a settlement at present-day Pensacola, making it the first attempted settlement in Florida, but it was abandoned by 1561. Spain maintained tenuous control over the region by converting the tribes to Christianity. The area of Spanish Florida diminished with the establishment of English settlements to the north, the English attacked St. Augustine, burning the city and its cathedral to the ground several times. Florida attracted numerous Africans and African-Americans from adjacent British colonies who sought freedom from slavery, in 1738, Governor Manuel de Montiano established Fort Gracia Real de Santa Teresa de Mose near St
5.
Truss bridge
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A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements usually forming triangular units. The connected elements may be stressed from tension, compression, or sometimes both in response to dynamic loads, Truss bridges are one of the oldest types of modern bridges. The basic types of truss bridges shown in this article have simple designs which could be analyzed by 19th-. A truss bridge is economical to construct because it uses materials efficiently, the nature of a truss allows the analysis of the structure using a few assumptions and the application of Newtons laws of motion according to the branch of physics known as statics. For purposes of analysis, trusses are assumed to be pin jointed where the components meet. This assumption means that members of the truss will act only in tension or compression, a more complex analysis is required where rigid joints impose significant bending loads upon the elements, as in a Vierendeel truss. The central vertical member stabilizes the upper member, preventing it from buckling. If the top member is sufficiently stiff then this element may be eliminated. If the lower chord is sufficiently resistant to bending and shear, the vertical elements may be eliminated. The ability to distribute the forces in various ways has led to a variety of truss bridge types. In other cases the appearance of the structure may take on greater importance, a pure truss can be represented as a pin-jointed structure, one where the only forces on the truss members are tension or compression, not bending. This is used in the teaching of statics, by the building of bridges from spaghetti. Spaghetti is brittle and although it can carry a modest tension force, a model spaghetti bridge thus demonstrates the use of a truss structure to produce a usefully strong complete structure from individually weak elements. In 1820 a simple form of truss, Towns lattice truss, was patented, few iron truss bridges were built in the United States before 1850. Truss bridges became a type of bridge built from the 1870s through the 1930s. Examples of these still remain across the US, but their numbers are dropping rapidly. As metal slowly started to replace timber, wrought iron bridges in the US started being built on a scale in the 1870s. Bowstring truss bridges were a common truss design during this time, companies like the Massillon Bridge Company of Massillon, Ohio and the King Bridge Company of Cleveland, Ohio became well-known, as they marketed their designs to cities and townships
6.
Swing bridge
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Small swing bridges as found over canals may be pivoted only at one end, opening as would a gate, but require substantial underground structure to support the pivot. In its closed position, a bridge carrying a road or railway over a river or canal, for example. When a water vessel needs to pass the bridge, road traffic is stopped, as this type requires no counterweights, the complete weight is significantly reduced as compared to other moveable bridges. Where sufficient channel is available to have individual traffic directions on each side, the central support is often mounted upon a berm along the axis of the watercourse, intended to protect the bridge from watercraft collisions when it is opened. This artificial island forms an excellent construction area for building the movable span as the construction will not impede channel traffic, for a symmetrical bridge, the central pier forms a hazard to navigation. Asymmetrical bridges may place the pivot near one side of the channel, where a wide channel is not available, a large portion of the bridge may be over an area that would be easily spanned by other means. A wide channel will be reduced by the pivot and foundation. If struck from the water near the edge of the span, buna River Bridge, in Shkodra, Albania. Puente de la Mujer, an asymmetrical cable-stayed span, the Sale Swing Bridge, Sale, Victoria, Australia. Dunalley Bridge, Dunalley, Tasmania Still in use, Belize City Swing Bridge, Belize City, Belize. Oldest such bridge in Central America and one of the few manually operated swing bridge in world still in operation, the longest swing bridge span is 340 metres, by the El Ferdan Railway Bridge across the Suez Canal. Le pont tournant rue Dieu, across the Canal Saint-Martin in Paris, is a location in the 1938 film Hôtel du Nord. Kalpaka Tilts, Liepāja, connecting the city with the former Russian/Soviet port Karosta, the Abtsewoudsebrug in Delft, close to the Technische Universiteit Delft, is a bridge of this type. 52°0′5. 71″N 4°21′50. 10″E Theres another one on the channel between Ghent and Terneuzen at Sas Van Gent, many inner cities have swing bridges, since these require less street space than other types of bridges. Kopu Bridge, Waihou River, near Thames, New Zealand A swing bridge at the Gatun Locks provides the only road passage over the Atlantic side of the Panama Canal and this is a small bridge that swings out from each side. Another larger swing bridge at the Miraflores Locks is on the Pacific side but is used, having been supplanted by the Bridge of the Americas. Crosskeys Bridge - carries the A17 road over the River Nene in Lincolnshire Folkestone Harbour railway station - railway bridge on the branch line, goole railway swing bridge Glasson Dock swing bridge Hawarden Railway Bridge - rail. Many are manually operated, carrying only farm tracks, but a significant number carry road traffic and are mechanised for boater operation, manchester Ship Canal at Latchford, Stockton Heath and Lower Walton in Warrington, and also slightly further west at Moore
7.
Tide
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Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun and the rotation of the Earth. Some shorelines experience a semi-diurnal tide—two nearly equal high and low tides each day, other locations experience a diurnal tide—only one high and low tide each day. A mixed tide—two uneven tides a day, or one high, Tides vary on timescales ranging from hours to years due to a number of factors. To make accurate records, tide gauges at fixed stations measure water level over time, gauges ignore variations caused by waves with periods shorter than minutes. These data are compared to the level usually called mean sea level. Tidal phenomena are not limited to the oceans, but can occur in other systems whenever a gravitational field varies in time. For example, the part of the Earth is affected by tides. Tide changes proceed via the following stages, Sea level rises over several hours, covering the intertidal zone, the water rises to its highest level, reaching high tide. Sea level falls over several hours, revealing the intertidal zone, the water stops falling, reaching low tide. Oscillating currents produced by tides are known as tidal streams, the moment that the tidal current ceases is called slack water or slack tide. The tide then reverses direction and is said to be turning, slack water usually occurs near high water and low water. But there are locations where the moments of slack tide differ significantly from those of high, Tides are commonly semi-diurnal, or diurnal. The two high waters on a day are typically not the same height, these are the higher high water. Similarly, the two low waters each day are the low water and the lower low water. The daily inequality is not consistent and is small when the Moon is over the equator. From the highest level to the lowest, Highest Astronomical Tide – The highest tide which can be predicted to occur, note that meteorological conditions may add extra height to the HAT. Mean High Water Springs – The average of the two high tides on the days of spring tides, mean High Water Neaps – The average of the two high tides on the days of neap tides. Mean Sea Level – This is the sea level
8.
Champion Bridge Co.
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The Champion Bridge Company, formerly known as Champion Iron Bridge and Manufacturing Company, is a steel fabrication business based in Wilmington, Ohio, in the United States. It has been in business since the 1870s, and several of its works are listed on the National Register of Historic Places, in the 1850s, Zimri Wall began building bridges in Clinton County, Ohio. In 1860, he built a number of bridges in Clinton County. He established the Zimri Wall Company, and in 1871, he went into partnership with his brother as the Z. & J. Wall, the Wall brothers developed a new wrought iron trussed arch bridge which was subsequently patented as the Champion Wrought Iron Arch Bridge. The patented design reportedly played a key role in the history of their company, the brothers sought investors to help them exploit their new design. In 1872, they formed the The Champion Iron Bridge and Manufacturing Company in partnership with Albert Israel Bailey, the company opened a fabrication shop in Hamilton, Ohio, and in 1875 built a larger shop in Wilmington, Ohio. The business was incorporated in 1878, and Zimri Wall left the business in 1880, in 1881, the company changed its name to the Champion Bridge Company in 1881 and began to also manufacture farm implements, iron fences, and some machinery. In 1893, the moved to its present location on East Sugartree Street in Wilmington. The company was among the first to use and promote steel for the construction of highway bridges. In 1905 and 1906, a Sandusky County, Ohio prosecutor pursued legal action, kora F. Brigs vs. Henry Hughes et al. against six Ohio bridge-building companies, including Champion Bridge Company, alleging that they had formed a bridge trust. The State alleged that the six companies had conspired to increase prices at the expense of taxpayers, in 1906, Ohio Attorney General Wade H. Ellis filed criminal charges against 15 bridge companies under Ohios Valentine Antitrust Act. In October 1906, The New York Times reported that Champion, despite the action, the convicted companies were able to continue operating in Ohio by reorganizing in other states or making organizational revisions under Ohio laws. In the 1930s, the company diversified into areas of structural steel. In 1935, R. J. Miars, who had previously been the general manager. Miars later bought out his investors, and he conveyed half of the company to his son, Harry S. Miars, the current corporation was established in 1956. A number of its works are listed on the U. S. National Register of Historic Places, Decatur, Tennessee, NRHP-listed Hutsell Truss Bridge, Old Ten Mile Rd. Ten Mile, Tennessee, NRHP-listed Kings Mill Bridge, Big Sewee Rd. Decatur, Tennessee, NRHP-listed Surprise Truss Bridge, Sewee Creek Rd. S
