Tay Rail Bridge
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Tay Rail Bridge
The Tay Bridge ( gd, Drochaid-rèile na Tatha) carries the railway across the Firth of Tay in Scotland between Dundee and the suburb of Wormit in Fife. Its span is . It is the second bridge to occupy the site. Plans for a bridge over the Tay to replace the train ferry service emerged in 1854, but the first Tay Bridge did not open until 1878. It was a lightweight lattice design of relatively low cost with a single track. On 28 December 1879, the bridge suddenly collapsed in high winds. The incident is one of the greatest bridge-related engineering disasters to have occurred. An enquiry determined that the bridge was insufficiently engineered to cope with high winds. It was replaced by a second bridge constructed of iron and steel, with a double-track, parallel to the remains of the first bridge. Work commenced on 6 July 1883 and the bridge opened in 1887. The new bridge was subject to extensive testing by the Board of Trade, which resulted in a favourable report. In 2003, the b ...
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Dundee Law
Dundee Law is a hill in the centre of Dundee, Scotland, and is the highest point in the city. The Law is what remains of a volcanic sill, which is the result of volcanic activity around 400 million years ago. With a large war memorial at its summit, it is the most prominent feature on the local skyline. Geology Dundee Law, which takes its name from a Scots word for a prominent hill, is an example of a volcanic sill. A volcanic area miles to the west forced lava through fissures in Old Red Sandstone. The subsequent action of rain, wind and ice eroded the sandstone, revealing the volcanic rock. Glaciers during the ice ages deposited more debris around the base, creating a crag and tail. The shallow gradient of the northern and eastern slopes of the law suggest a north-easterly movement of ice flows. The summit of the hill is over above sea level. Despite the derivation of "law" making it tautological to do so, the Law is commonly referred to as the "Law Hill". History Archa ...
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Thomas W
Thomas may refer to: People * List of people with given name Thomas * Thomas (name) * Thomas (surname) * Saint Thomas (other) * Thomas Aquinas (1225–1274) Italian Dominican friar, philosopher, and Doctor of the Church * Thomas the Apostle * Thomas (bishop of the East Angles) (fl. 640s–650s), medieval Bishop of the East Angles * Thomas (Archdeacon of Barnstaple) (fl. 1203), Archdeacon of Barnstaple * Thomas, Count of Perche (1195–1217), Count of Perche * Thomas (bishop of Finland) (1248), first known Bishop of Finland * Thomas, Earl of Mar (1330–1377), 14th-century Earl, Aberdeen, Scotland Geography Places in the United States * Thomas, Illinois * Thomas, Indiana * Thomas, Oklahoma * Thomas, Oregon * Thomas, South Dakota * Thomas, Virginia * Thomas, Washington * Thomas, West Virginia * Thomas County (other) * Thomas Township (other) Elsewhere * Thomas Glacier (Greenland) Arts, entertainment, and media * ''Thomas'' (Burton novel) 1969 nove ...
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Gib And Cotter
A cotter is a pin or wedge passing through a hole to fix parts tightly together. In British usage cotter pin has the same meaning,. but in the U.S. it means a split pin. Typical applications are in fixing a crank to its crankshaft, as in a bicycle, and a piston rod to a crosshead, as in a steam engine. The angle of the wedge determines the position of the parts being held; therefore, on a bicycle, the pedal arms will only be at 180 degrees to each other if the angle of the cotter pin's wedge is the same on both pins. Popular usage Formerly, it was common to mount bicycle cranks using a cotter, though now usually a more easily maintained arrangement is used such as a square tapered or splined interface. These cotters have a short threaded section at the narrower end of the taper, which is used to hold the cotter in place with a washer and nut. They are also used to secure ceiling fans A ceiling fan is a fan mounted on the ceiling of a room or space, usually electrical ...
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The Tay Rail Bridge As Seen Across The Tay Estuary From Newport-on-Tay
''The'' () is a grammatical article in English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pron ...
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The Tay Rail Bridge From Wormit On The South Bank
''The'' () is a grammatical article in English, denoting persons or things already mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with pronouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of pronoun ''thee'') when followed by a v ...
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Stainmore
Stainmore is a remote geographic area in the Pennines on the border of Cumbria, County Durham and North Yorkshire. The name is used for a civil parish in the Eden District of Cumbria, England, including the villages of North Stainmore and South Stainmore. The parish had a population of 253 in the 2001 census, increasing to 264 at the Census 2011. Stainmore Forest stretches further east into County Durham, towards Bowes. Geography Stainmore is drained by the River Belah and the River Balder. It is crossed by the Roman road from Bowes to Brough, now part of the A66, and formerly by the Stainmore Railway. Each of these lines of communication has made use of the relatively low broad saddle between the higher hills to north and south which is commonly referred to as the Stainmore Gap. The summit of the former railway is around above sea level, though the roads climb to slightly higher elevations. The Gap is coincident with the Stainmore Summit Fault which throws the relativel ...
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South Durham & Lancashire Union Railway
The South Durham & Lancashire Union Railway (SD&LUR) built a railway line linking the Stockton & Darlington Railway near Bishop Auckland with the Lancaster and Carlisle Railway (the West Coast Main Line) at Tebay, via Barnard Castle, Stainmore Summit and Kirkby Stephen. The line opened in 1861 and became known as the Stainmore Line. The Stockton & Darlington absorbed the SD&LUR, and the Stockton & Darlington became a constituent of the North Eastern Railway. The line closed in stages between 1952 and 1962. A short section of the line at Kirkby Stephen East station has been restored by the Stainmore Railway Company. Origins When the Lancaster & Carlisle Railway (L&CR) was approved in June 1844 there were a number of schemes for a railway over the Pennines. The York & Carlisle Railway proposed a route from the East Coast Main Line (ECML) at Northallerton via Richmond, Barnard Castle, the Tees Valley, Stainmore and the Eden Valley to the L&CR at Clifton. A rival scheme, the Yo ...
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Belah Viaduct
The Belah Viaduct was a railway viaduct on the South Durham and Lancashire Union Railway, crossing the River Belah, in Cumbria, England, about south of the village of Barras and east north east of Kirkby Stephen. It was completed in 1860 and was demolished in 1963. The viaduct was designed by Thomas Bouch and the ironwork was supplied and erected by Gilkes Wilson; both Bouch and Gilkes Wilson were also responsible for the later Tay Bridge. It had 'double' Warren truss girders on cast iron columns, and was constructed at a cost of £31,630. The foundation stone was laid in November 1857. The first locomotive crossed the viaduct in November 1860, and the line opened on 7 August 1861. It was long, wide, with 16 spans, and at it was the highest bridge in England when it was built (but lower than the Crumlin Viaduct in Wales). Post-WWII, weight limitations on the aging viaduct and its limited maintenance led to a ban on double heading across both Belah and Deepdale Via ...
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Thermal Expansion
Thermal expansion is the tendency of matter to change its shape, area, volume, and density in response to a change in temperature, usually not including phase transitions. Temperature is a monotonic function of the average molecular kinetic energy of a substance. When a substance is heated, molecules begin to vibrate and move more, usually creating more distance between themselves. Substances which contract with increasing temperature are unusual, and only occur within limited temperature ranges (see examples below). The relative expansion (also called strain) divided by the change in temperature is called the material's coefficient of linear thermal expansion and generally varies with temperature. As energy in particles increases, they start moving faster and faster weakening the intermolecular forces between them, therefore expanding the substance. Overview Predicting expansion If an equation of state is available, it can be used to predict the values of the thermal expan ...
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Dusk On A Sunny Summers Day Across Dundee, Scotland, July 17, 2007
Dusk occurs at the darkest stage of twilight, or at the very end of astronomical twilight after sunset and just before nightfall.''The Random House College Dictionary'', "dusk". At predusk, during early to intermediate stages of twilight, enough light in the sky under clear conditions may occur to read outdoors without artificial illumination; however, at the end of civil twilight (when Earth rotates to a point at which the center of the Sun's disk is 6° below the local horizon), such lighting is required to read outside. The term ''dusk'' usually refers to astronomical dusk, or the darkest part of twilight before night begins. Technical definitions The time of dusk is the moment at the very end of astronomical twilight, just before the minimum brightness of the night sky sets in, or may be thought of as ''the darkest part of evening twilight''. However, technically, the three stages of dusk are as follows: *At civil dusk, the center of the Sun's disc goes 6° below the ...
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Massif Central
The (; oc, Massís Central, ; literally ''"Central Massif"'') is a highland region in south-central France, consisting of mountains and plateaus. It covers about 15% of mainland France. Subject to volcanism that has subsided in the last 10,000 years, these central mountains are separated from the Alps by a deep north–south cleft created by the Rhône river and known in French as the ' (literally "Rhône furrow"). The region was a barrier to transport within France until the opening of the A75 motorway, which not only made north–south travel easier, but also opened access to the massif itself. Geography and geology The is an old massif, formed during the Variscan orogeny, consisting mostly of granitic and metamorphic rocks. It was powerfully raised and made to look geologically younger in the eastern section by the uplift of the Alps during the Paleogene period and in the southern section by the uplift of the Pyrenees. The massif thus presents a strongly asymmet ...
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Gustave Eiffel
Alexandre Gustave Eiffel (born Bonickhausen dit Eiffel; ; ; 15 December 1832 – 27 December 1923) was a French civil engineer. A graduate of École Centrale des Arts et Manufactures, he made his name with various bridges for the French railway network, most famously the Garabit Viaduct. He is best known for the world-famous Eiffel Tower, designed by his company and built for the 1889 Universal Exposition in Paris, and his contribution to building the Statue of Liberty in New York. After his retirement from engineering, Eiffel focused on research into meteorology and aerodynamics, making significant contributions in both fields. Early life Alexandre Gustave Eiffel was born in France, in the Côte-d'Or, the first child of Catherine-Mélanie (née Moneuse) and Alexandre Bonickhausen dit Eiffel. He was a descendant of Marguerite Frédérique (née Lideriz) and Jean-René Bönickhausen and who had emigrated from the German town of Marmagen and settled in Paris at the beginning of ...
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