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Photographic Grey
Photographic grey, also known as works grey, was a paint scheme commonly applied to steam locomotives during the period before colour photography became commonplace. It was applied to allow sharper, more detailed images of the locomotive to be recorded. The first photographs of railways and their locomotives were made by private individuals, but by the 1860s the railway companies themselves were keen to create official photographs of the highest quality possible of their latest designs, which led to the adoption of photographic grey in railway photography. Use Railway companies wished to record their latest locomotives for use in publicity material and advertisements, and as a technical record of their work. This was especially the case in the United Kingdom, where all but the smallest of the 'pre-grouping' companies owned their own locomotive works and designed and built their own railway engines. For the numerous private locomotive builders it was especially important to hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
990 Official Photo
99 may refer to: * 99 (number), the natural number following 98 and preceding 100 * one of the years 99 BC, AD 99, 1999, 2099, etc. Art, entertainment, and media * ''The 99'', a comic series based on Islamic culture Film, television and radio * ''99'' (1918 film), a Hungarian film * ''99'' (2009 film), an Indian Hindi film * ''99'' (2019 film), an Indian Kannada film * ''The 99'' (TV series), a 2011–2012 animated series * Agent 99, a fictional character in the 1960s American TV series ''Get Smart'' * WNNX (99X), classic "Rock 100.5" FM, in Atlanta, Georgia * ''Brooklyn Nine-Nine'', an American television police sitcom based in the fictional 99th precinct of the NYPD ** 99 (''Brooklyn Nine-Nine'' episode) * 99, a clone trooper character from ''Star Wars: The Clone Wars'' Games * '' '99: The Last War'', a renamed version of the arcade game ''Repulse'' * Ninety-nine (addition card game), a simple card game where players drop out if forced to bring the total above 99 * Ninety ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orthochromatic
In chemistry, orthochromasia is the property of a dye or stain to not change color on binding to a target, as opposed to metachromatic stains, which change color. The word is derived from the Greek '' orthos'' (correct, upright), and chromatic (color). Toluidine blue is an example of a partially orthochromatic dye, as it stains nucleic acids by its orthochromatic color (blue), but stains mast cell granules in its metachromatic color (red). In spectral terms, orthochromasia refers to maintaining the position of spectral peaks, while metachromasia refers to a shift in wavelength, becoming either shorter or longer. In photography, an orthochromatic light spectrum is one devoid of red light. In biology, orthochromatic refers to the greyish staining because of acidophilic and basophilic mixture in the cell. Orthochromatic photography Orthochromatic photography refers to a photographic emulsion that is sensitive to only blue and green light, and thus can be processed with a red ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Star Line
The White Star Line was a British shipping company. Founded out of the remains of a defunct packet company, it gradually rose up to become one of the most prominent shipping lines in the world, providing passenger and cargo services between the British Empire and the United States. While many other shipping lines focused primarily on speed, White Star branded their services by focusing more on providing comfortable passages for both upper class travellers and immigrants. Today, it is remembered for the innovative vessel and for the losses of some of their best passenger liners, including the wrecking of in 1873, the sinking of in 1909, the infamous loss of in 1912 and the wartime sinking of in 1916. Despite its casualties, the company retained a prominent hold on shipping markets around the globe before falling into decline during the Great Depression, which ultimately led to a merger with its chief rival, Cunard Line, which operated as Cunard-White Star Line until 1950 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail
British Railways (BR), which from 1965 traded as British Rail, was a state-owned company that operated most of the overground rail transport in Great Britain from 1948 to 1997. It was formed from the nationalisation of the Big Four British railway companies, and was privatised in stages between 1994 and 1997. Originally a trading brand of the Railway Executive of the British Transport Commission, it became an independent statutory corporation in January 1963, when it was formally renamed the British Railways Board. The period of nationalisation saw sweeping changes in the railway. A process of dieselisation and electrification took place, and by 1968 steam locomotives had been entirely replaced by diesel and electric traction, except for the Vale of Rheidol Railway (a narrow-gauge tourist line). Passengers replaced freight as the main source of business, and one-third of the network was closed by the Beeching cuts of the 1960s in an effort to reduce rail subsidies. On privatis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LNER Peppercorn Class A1 60163 Tornado
LNER Peppercorn Class A1 No. 60163 ''Tornado'' is a 4-6-2 steam locomotive completed in 2008 to an original design by Arthur Peppercorn. It is the first new build British mainline steam locomotive since 1960, and the only Peppercorn Class A1 in existence after the original batch were scrapped. In 2017, ''Tornado'' became the first steam locomotive to officially reach 100 mph on British tracks in over 50 years. After the project was founded by the A1 Steam Locomotive Trust in 1990, construction of ''Tornado'' began in 1994 and mostly took place at Darlington Works, with other components manufactured elsewhere. The project was financed through fundraising initiatives, public donations, sponsorship deals, and hiring out ''Tornado'' itself for special services. The locomotive was granted its mainline certificate in January 2009, having been designed in compliance with modern safety and certification standards''. Tornado'' has worked on heritage and mainline trains across ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail HS4000
HS4000 Kestrel was a prototype high-powered mainline diesel locomotive that was built in 1967 by Brush Traction, Loughborough, as a technology demonstrator for potential future British Rail and export orders. ''therailwaycentre.com'' The locomotive number is a combination of the initials of Hawker Siddeley (the owners of Brush Traction) and the power rating of its Sulzer diesel engine (4,000 hp), making it the most powerful locomotive built by the company. It was of Co-Co wheel arrangement and was fitted with a Sulzer 16LVA24 engine rated at providing a maximum speed of and weighed 133 tonnes. It was painted in a livery of yellow ochre with a broad chocolate-brown band around the lower bodyside separated by a thin white line running around the body. Background and design In the mid 1960s British rail produced specifications for type 5 locomotives weighing less than 126 tonnes with more than of power for both passenger and freight working. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail DP1
English Electric DP1, commonly known as ''Deltic'', is a prototype demonstrator locomotive employing two Napier Deltic engines, built by English Electric in 1955. The high power of the locomotive at an acceptably low axleload resulted in 22 similar locomotives being ordered by British Railways for use on East Coast Main Line express passenger services, the serial production of which became the British Rail Class 55. Background and design The English Electric company, which had absorbed the engine-maker Napier & Son into its group at the instruction of the Ministry of Aircraft Production in 1942, was a major builder of diesel and electric locomotives. The two George Nelsons (Sir George, and his son, known in the works as "Half") saw the potential of Napier's Deltic engine for rail traction and in 1954–1955 built a demonstrator at its Dick, Kerr works in Preston. Officially numbered DP1, its internal project title was ''Enterprise'', and it was intended that the locomotive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Locomotive
A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is conveyed to the driving wheels. Early internal combustion locomotives and railcars used kerosene and gasoline as their fuel. Rudolf Diesel patented his first compression-ignition engine in 1898, and steady improvements to the design of diesel engines reduced their physical size and improved their power-to-weight ratios to a point where one could be mounted in a locomotive. Internal combustion engines only operate efficiently within a limited power band, and while low power gasoline engines could be coupled to mechanical transmissions, the more powerful diesel engines required the development of new forms of transmission. This is because clutches would need to be very large at these power levels and would not fit in a standard -wide locomotive frame, or wear too quic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photographic Film
Photographic film is a strip or sheet of transparent film base coated on one side with a gelatin photographic emulsion, emulsion containing microscopically small light-sensitive silver halide crystals. The sizes and other characteristics of the crystals determine the sensitivity, contrast, and image resolution, resolution of the film. The emulsion will gradually darken if left exposed to light, but the process is too slow and incomplete to be of any practical use. Instead, a very short exposure (photography), exposure to the image formed by a camera lens is used to produce only a very slight chemical change, proportional to the amount of light absorbed by each crystal. This creates an invisible latent image in the emulsion, which can be chemically photographic processing, developed into a visible photograph. In addition to visible light, all films are sensitive to ultraviolet light, X-rays, gamma rays, and particle radiation, high-energy particles. Unmodified silver halide crys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
60163 Tornado Side On
6 (six) is the natural number following 5 and preceding 7. It is a composite number and the smallest perfect number. In mathematics Six is the smallest positive integer which is neither a square number nor a prime number; it is the second smallest composite number, behind 4; its proper divisors are , and . Since 6 equals the sum of its proper divisors, it is a perfect number; 6 is the smallest of the perfect numbers. It is also the smallest Granville number, or \mathcal-perfect number. As a perfect number: *6 is related to the Mersenne prime 3, since . (The next perfect number is 28.) *6 is the only even perfect number that is not the sum of successive odd cubes. *6 is the root of the 6-aliquot tree, and is itself the aliquot sum of only one other number; the square number, . Six is the only number that is both the sum and the product of three consecutive positive numbers. Unrelated to 6's being a perfect number, a Golomb ruler of length 6 is a "perfect ruler". Six is a con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Negative (photography)
In photography, a negative is an image, usually on a strip or sheet of transparent plastic film, in which the lightest areas of the photographed subject appear darkest and the darkest areas appear lightest. This reversed order occurs because the extremely light-sensitive chemicals a camera film must use to capture an image quickly enough for ordinary picture-taking are darkened, rather than bleached, by exposure to light and subsequent photographic processing. In the case of color negatives, the colors are also reversed into their respective complementary colors. Typical color negatives have an overall dull orange tint due to an automatic color-masking feature that ultimately results in improved color reproduction. Negatives are normally used to make positive prints on photographic paper by projecting the negative onto the paper with a photographic enlarger or making a contact print. The paper is also darkened in proportion to its exposure to light, so a second reversal result ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spoke
A spoke is one of some number of rods radiating from the center of a wheel (the hub where the axle connects), connecting the hub with the round traction surface. The term originally referred to portions of a log that had been riven (split lengthwise) into four or six sections. The radial members of a wagon wheel were made by carving a spoke (from a log) into their finished shape. A spokeshave is a tool originally developed for this purpose. Eventually, the term spoke was more commonly applied to the finished product of the wheelwright's work, than to the materials they used. History The spoked wheel was invented to allow the construction of lighter and swifter vehicles. Earliest physical evidence for spoked wheels were found in Sintashta culture, dating to 2000 BC. Soon after this, horse cultures of the Caucasus region used horse-drawn spoked-wheel war chariots for the greater part of three centuries. They moved deep into the Greek peninsula where they joined with the exis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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