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Doublet
Doublet is a word derived from the Latin ''duplus'', "twofold, twice as much", and is used to indicate a pair of identical, similar, or related things. Doublet may refer to: Apparel *, a man's snug-fitting buttoned jacket that was worn from the late 14th century to the mid 17th century * Doublet (Highland dress), a formal jacket worn with Scottish highland dressGames * Doublet ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierre Jean Louis Ovide Doublet
Pierre Jean Louis Ovide Doublet (25 August 1749 - 4 February 1824) was a French politician and writer who spent much of his life serving in the Knights Hospitaller, Knights of Malta. Following his enlistment as a soldier, he entered the service of the French Secretariat of the Knights and was eventually promoted to the leadership of the Secretariat. Doublet participated in the negotiations for the surrender of the Knights when Malta was captured by Napoleon in 1798. Grand Master Ferdinand von Hompesch zu Bolheim had failed to bolster Valletta's defenses against the French fleet and had peacefully admitted some French ships to the harbor, leading to the island's capture. Doublet, being in the Grand Master's direct service, was accused as a collaborator with the French and became caught in the political maneuvering by other members to depose Hompesch. Doublet stayed in Malta during the French occupation, serving as Secretary General to the Commission of Government installed by Nap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doublet (clothing)
A doublet (/ˈdʌblɪt/; derived from the Ital. ''giubbetta'') is a man's snug-fitting jacket that is shaped and fitted to the man's body. The garment was worn in Spain, and spread to the rest of Western Europe, from the late Middle Ages up to the mid-17th century. The doublet was hip length or waist length and worn over the shirt or drawers. Until the end of the 15th century, the doublet was usually worn under another layer of clothing such as a gown, mantle, overtunic or jerkin when in public. Originally it was a mere stitched and quilted lining ("doubling"), worn under a hauberk or cuirass to prevent bruising and chafing. Doublets were sometimes opened to the waistline in a deep V. The edges might be left free or laced across the shirt front. If there was space left it might be filled with a stomacher. By the 1520s, the edges of the doublet more frequently met at the center front. Then, like many other originally practical items in the history of men's wear, from the late 15 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doublet (Highland Dress)
Doublet is the term describing any of several types of jacket worn with Scottish highland dress; referring to both uniform and evening jackets. Uniform doublets are found in a number of different styles. Commonly they are short cut with four Inverness flaps skirt and buttoned Gauntlet (glove), gauntlet cuffs. It can be any colour depending upon the regiment. It is also used by civilian pipe bands. Formal jackets As with both uniform doublets and civilian dress, there are a number of styles of jacket or doublet suitable for wear with highland dress. Kinloch Anderson, one of the older makers of highland dress in Scotland, considers the "Coatee and Vest" (often called the Prince Charlie Jacket), Argyll Jacket, Regulation Doublet, Montrose Doublet, Sheriffmuir Jacket or Kenmore jacket" suitable for "black tie" evening wear, with all except the Argyll Jacket also considered acceptable for "white tie" events. The Argyll jacket and tweed jackets are appropriate for day wear. Diff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doublet Earthquake
__NOTOC__ In seismology, doublet earthquakes – and more generally, multiplet earthquakes – were originally identified as multiple earthquakes with nearly identical waveforms originating from the same location. They are now characterized as single earthquakes having two (or more) main shocks of similar magnitude, sometimes occurring within tens of seconds, but sometimes separated by years. The similarity of magnitude – often within 0.4 magnitude – distinguishes multiplet events from aftershocks, which start at about 1.2 magnitude less than the parent shock ( Båth's law) and decrease in magnitude and frequency according to known laws. Doublet/multiplet events also have nearly identical seismic waveforms, as they come from the same rupture zone and stress field, whereas aftershocks, being peripheral to the main rupture, typically reflect more diverse circumstances of origin. Multiplet events overlap in their focal fields (rupture zones), which can be up 100 kilometers across ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doublets (game)
Doublets or queen's game is an historical English tables game for two people which was popular in the 17th and 18th centuries. Although played on a board similar to that now used for backgammon, it is a simple game of hazard bearing little resemblance to backgammon. Very similar games were played in mainland Europe, the earliest recorded dating to the 14th century. History Doublets may be an elaboration of the Spanish game of ''doblet'' which is described in detail in 1283 in '' El Libro de los Juegos'' published by Alfonso X of Castile.Alfonso X (1283). In 1534, a game called ''renette'' or ''reynette'' ("little queen")Fiske (1905), p. 286. appears in the list of games in Gargantua published by Rabelais. According to Cotgrave's French Dictionary of 1611, ''renette'' is "a game of tables of some resemblance with our Doublets or Queenes Game..."Cotgrave (1611). Entry for ''renette''. The name "queen's game" is recorded as early as 1554Cram, Forgeng and Johnson (2003), pp. 256 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doublet (horse)
Doublet (b. 1963 - †.1974) was a Thoroughbred cross gelding. Doublet was a successful performer in the sport of Eventing, in which he was the regular mount of Princess Anne. Doublet was ridden by Princess Anne when winning the gold medal in the 1971 European Eventing Championship. Beginning Doublet was a gelding presented to Princess Anne, Princess Royal, as a gift from her mother, Queen Elizabeth II.Boca Raton News He was sired by the Argentinian Thoroughbred stallion Doubtless out of a non-Thoroughbred mare named Swaté. Activity His trainer was Alison Oliver. On 27 March 1971, the gelding threw the Princess Royal. He won gold at the European three-day eventing championships, in Burghley with Princess Anne on 4 September 1971, and finished fifth at the Badminton Horse Trials in the same year. Was in Kiev in 1973, later suffering ailments. Death On May 13, 1974, while training on the grounds of Windsor Castle, Doublet suffered a broken leg. His life was humanely ended.Hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doublet (linguistics)
In etymology, two or more words in the same language are called doublets or etymological twins or twinlings (or possibly triplets, and so forth) when they have different phonological forms but the same etymological root. Often, but not always, the words entered the language through different routes. Given that the kinship between words that have the same root and the same meaning is fairly obvious, the term is mostly used to characterize pairs of words that have diverged at least somewhat in meaning. For example, English ''pyre'' and ''fire'' are doublets with merely associated meanings despite both descending ultimately from the same Proto-Indo-European (PIE) word *'. Words with similar meanings but subtle differences contribute to the richness of modern English, and many of these are doublets. A good example consists of the doublets ''frail'' and ''fragile''. (These are both ultimately from the Latin adjective ', but ''frail'' evolved naturally through its slowly changing forms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Word Ladder
Word ladder (also known as Doublets, word-links, change-the-word puzzles, paragrams, laddergrams, or word golf) is a word game invented by Lewis Carroll. A word ladder puzzle begins with two words, and to solve the puzzle one must find a chain of other words to link the two, in which two adjacent words (that is, words in successive steps) differ by one letter. History Lewis Carroll says that he invented the game on Christmas day in 1877. Carroll devised the word game for Julia and Ethel Arnold. The first mention of the game in Carroll's diary was on March 12, 1878, which he originally called "Word-links", and described as a two-player game. Carroll published a series of word ladder puzzles and solutions, which he then called "Doublets", in the magazine ''Vanity Fair'', beginning with the March 29, 1879 issue. Later that year it was made into a book, published by Macmillan and Co. J. E. Surrick and L. M. Conant published a book ''Laddergrams'' of such puzzles in 1927. Vladimir Na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doublet (lens)
In optics, a doublet is a type of lens made up of two simple lenses paired together. Such an arrangement allows more optical surfaces, thicknesses, and formulations, especially as the space between lenses may be considered an "element". With additional degrees of freedom, optical designers have more latitude to correct more optical aberrations more thoroughly. Types Doublets can come in many forms, though most commercial doublets are achromats, which are optimized to reduce chromatic aberration while also reducing spherical aberration and other optical aberrations. The lenses are made from glasses with different refractive indices and different amounts of dispersion. Often one element is made from crown glass and the other from flint glass. This combination produces a better image than a simple lens. Some Trilobites, which are now extinct, had natural doublet lenses in their eyes. Apochromats can also be made as doublets. Doublets can be air-spaced, cemented, or "oiled". Oi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doublet State
In quantum mechanics, a doublet is a composite quantum state of a system with an effective spin of 1/2, such that there are two allowed values of the spin component, −1/2 and +1/2. Quantum systems with two possible states are sometimes called two-level systems. Essentially all occurrences of doublets in nature arise from rotational symmetry; spin 1/2 is associated with the fundamental representation of the Lie group SU(2). History and applications The term "doublet" dates back to the 19th century, when it was observed that certain spectral lines of an ionized, excited gas would split into two under the influence of a strong magnetic field, in an effect known as the anomalous Zeeman effect. Such spectral lines were observed not only in the laboratory, but also in astronomical spectroscopy observations, allowing astronomers to deduce the existence of, and measure the strength of magnetic fields around the sun, stars and galaxies. Conversely, it was the observation of doublets in s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doublet (lapidary)
A doublet is a type of assembled gem composed in two sections. It is sometimes used to imitate other, more expensive gems. A garnet and glass doublet uses a top portion of natural garnet fused to any color of glass to imitate a gem. The color of glass used in the doublet is all that is seen, as the garnet provides no color. If seen in reflected light, a separation line may be seen. A harder garnet makes the stones more durable. In the case of opal Opal is a hydrated amorphous form of silica (SiO2·''n''H2O); its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Due to its amorphous property, it is classified as a mineraloid, unlike crystalline form ... doublets, a backing layer of onyx or matrix (ironstone) gives the more fragile opal layer support and can make the opal look darker and higher quality. Garnet and glass doublets were first used around 1850 when it was noted that molten glass would adhere to garnet. It was a popular imi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doublet (computing)
In computing and telecommunications, a unit of information is the capacity of some standard data storage system or communication channel, used to measure the capacities of other systems and channels. In information theory, units of information are also used to measure information contained in messages and the entropy of random variables. The most commonly used units of data storage capacity are the bit, the capacity of a system that has only two states, and the byte (or octet), which is equivalent to eight bits. Multiples of these units can be formed from these with the SI prefixes (power-of-ten prefixes) or the newer IEC binary prefixes (power-of-two prefixes). Primary units In 1928, Ralph Hartley observed a fundamental storage principle, which was further formalized by Claude Shannon in 1945: the information that can be stored in a system is proportional to the logarithm of ''N'' possible states of that system, denoted . Changing the base of the logarithm from ''b'' to a diff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
