Grease
Grease is a lubricant of higher initial viscosity than oil, consisting originally of a calcium, sodium or lithium soap jelly emulsified with mineral oil. Greases are a type of shear thinning or pseudo-plastic fluid, which means that the viscosity of the fluid is reduced under shear. After sufficient force to shear the grease has been applied, the viscocity drops and approaches that of the base mineral oil (or that of the EP additive for EP greases under heavy load). This sudden drop in shear force means that grease is considered a plastic fluid, and the reduction of shear force with time makes it thixotropic. Greases are employed where heavy pressures exist, where oil drip from the bearings is undesirable, and/or where the motions of the contacting surfaces is discontinuous so that it is difficult to maintain a separating lubricant film in the bearing. Grease-lubricated bearings have greater frictional characteristics at the beginning of operation, causing a temperature rise which tends to melt the grease and give the effect of an oil-lubricated bearing. Calcium and sodium base greases are the most commonly used; sodium base greases have higher melting point than calcium base greases but are not resistant to the action of water. Lithium based grease has a drip temperature at 350° to 400°F and it resists moisture hence it is commonly used as lubricant in household products such as garage door openers. Graphite, either by itself or mixed with grease, is also employed as a lubricant. Teflon is added to some greases to improve on the lubricating property. Gear greases consist of rosin oil, thickened with lime and mixed with mineral oil, with some percentage of water. Special purpose greases contain glycerol and sorbitan esters. They are used, for example, in low-temperature conditions. Some greases are labeled "EP", which indicates "extreme pressure". Under high pressure or shock loading, normal grease can be compressed to the extent that the greased parts come into physical contact, causing friction and wear. EP grease contains solid lubricants, usually graphite and/or moly, to provide protection under heavy loadings. The solid lubricants bond to the surface of the metal, and prevent metal to metal contact and the resulting friction and wear when the lubricant film gets too thin. Some silicone-based lubricants are also marketed as grease. Whether they can be classified as grease in the regular sense is uncertain. Silicone grease is an amorphous fumed, silica thickened, polysiloxane-based compound. Some rendered animal fats are known as greases. Rendered chicken fat becomes the commodity known as yellow grease. Animal greases may have been used as lubricants in the past, but this is not now common in developed nations. This page about movie Grease includes information from a Wikipedia article. Additional articles about movie Grease News stories about movie Grease External links for movie Grease Videos for movie Grease Wikis about movie Grease Discussion Groups about movie Grease Blogs about movie Grease Images of movie Grease |
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Animal greases may have been used as lubricants in the past, but this is not now common in developed nations. In 2002 the Dutch-speaking author Toon Tellegen published Brieven aan Doornroosje (http://www.vpro.nl/boeken/index.shtml?3141869+5025064+6677541#public14054658) ("Letters to Sleeping Beauty"), leading, in 2005, to a year-long daily series of such letters (http://www.brievenaandoornroosje.be/web/doornroosje/web/home.asp), imagined to be written by the prince making his quest to Sleeping Beauty's castle, being presented at the Flemish classical radio station (Klara (http://www.klara.be/)), every morning just before 7 h opening the day program. Rendered chicken fat becomes the commodity known as yellow grease. The story of the sleeping beauty was loosely the basis for the erotic novel The Claiming of Sleeping Beauty by Anne Rice. Some rendered animal fats are known as greases. It is noteworthy that the King and Queen are not included in this analogue of a burial, but retire, while the protective spectral thorn forest immediately grows up to protect the castle and its occupants, as effective as a tumulus. Silicone grease is an amorphous fumed, silica thickened, polysiloxane-based compound. (See grave goods). Whether they can be classified as grease in the regular sense is uncertain. The Princess's sleeping attendants, waiting to accompany her when she wakes in the other world, even to the spit-boys in the kitchens and her pet dog, expresses one of the most ancient themes in ritual burial practices, though Perrault was probably unaware of the Egyptian burials, and certainly unaware of the royal tombs of Queen Puabi of the Third Dynasty of Ur, the courtiers that accompanied early emperors of China in the tomb, the horses that accompanied the noble riders in the kurgans of Scythian Pasyryk. Some silicone-based lubricants are also marketed as grease. Freudian psychologists, encouraged by Bruno Bettelheim's The Uses of Enchantment, have found rich materials to analyze in Sleeping Beauty as a case history of incest and latent sexuality and a prescription for the passive socializaion of those young women who were not destined for work. The solid lubricants bond to the surface of the metal, and prevent metal to metal contact and the resulting friction and wear when the lubricant film gets too thin. This can be compared with the gifts Moll Flanders apparently possessed, in the book with the same name that appeared precisely a quarter of a century after Perrault's Sleeping Beauty (1722). EP grease contains solid lubricants, usually graphite and/or moly, to provide protection under heavy loadings. More modern versions of the tale might include, apart from Intelligence, Courage and Independence as fairy gifts. Under high pressure or shock loading, normal grease can be compressed to the extent that the greased parts come into physical contact, causing friction and wear. No such gift was however offered in Perrault's version: not appropriate in 1697, when a good ear for playing music appeared more essential. Some greases are labeled "EP", which indicates "extreme pressure". One of the fairy gifts is sometimes misremebered as Intelligence. They are used, for example, in low-temperature conditions. See also Weaving (mythology). Special purpose greases contain glycerol and sorbitan esters. Among familiar themes and elements in Perrault's tale: the Wished-for Child (see Saint Anne, and Rapunzel); the Accursed Gift (see Nessus with Deianira); the Inevitable Fate; the Spinner (see Moirae, Norns); the Heroic Quest; the Ogre Stepmother; the Substituted Victim (see Isaac, Zeus with Cronos, Iphigeneia). Gear greases consist of rosin oil, thickened with lime and mixed with mineral oil, with some percentage of water. Earlier influences come from the story of the sleeping Brynhild in the Volsunga saga and the tribulations of saintly female martyrs in early Christian hagiography conventions. Teflon is added to some greases to improve on the lubricating property. There are earlier elements that contributed to the tale, in the medieval courtly romance Perceforest (published in 1528), in which a princess named Zellandine falls into an enchanted sleep and is raped by a wandering prince, resulting in the birth of their child. Graphite, either by itself or mixed with grease, is also employed as a lubricant. Perrault's is an aristocratic tale told for a high-bourgeois audience, inculcating female patience and passivity. Lithium based grease has a drip temperature at 350° to 400°F and it resists moisture hence it is commonly used as lubricant in household products such as garage door openers. Basile's was an adult tale told by an aristocrat for aristocrats, emphasizing concerns such as marital fidelity and inheritance. Calcium and sodium base greases are the most commonly used; sodium base greases have higher melting point than calcium base greases but are not resistant to the action of water. Shared themes of violence, rape, rivalry and cannibalism appear in the second parts. Grease-lubricated bearings have greater frictional characteristics at the beginning of operation, causing a temperature rise which tends to melt the grease and give the effect of an oil-lubricated bearing. Perrault so transformed the tale of a sleeping beauty, "Sole, Luna, e Talia" in Giambattista Basile's collection of tales, Il Pentamerone, that she is scarcely recognizable in the first part of the tale, the only part that is still current. Greases are employed where heavy pressures exist, where oil drip from the bearings is undesirable, and/or where the motions of the contacting surfaces is discontinuous so that it is difficult to maintain a separating lubricant film in the bearing. Three of Disney's theme parks feature castles named after Sleeping Beauty. This sudden drop in shear force means that grease is considered a plastic fluid, and the reduction of shear force with time makes it thixotropic. Since then, the film has gained a following, and is today hailed as one of the best animated features ever made, thanks to its stylized designs by painter Eyvind Earle, its lush music score (adapted from Tchaikovsky's ballet), and its large-format widescreen and stereophonic sound presentation. After sufficient force to shear the grease has been applied, the viscocity drops and approaches that of the base mineral oil (or that of the EP additive for EP greases under heavy load). When it was first released, Sleeping Beauty returned only half the invested sum of six million US dollars, nearly bankrupting the Disney studio. Greases are a type of shear thinning or pseudo-plastic fluid, which means that the viscosity of the fluid is reduced under shear. In the film Aurora's father is named Stephan and Philip's father is named Hubert. Grease is a lubricant of higher initial viscosity than oil, consisting originally of a calcium, sodium or lithium soap jelly emulsified with mineral oil. The witch was aptly named Maleficent ("Evil-doer"). Sleeping Beauty was "Princess Aurora" as in the Tchaikovsky ballet; the prince was given the only princely name familiar to Americans in the 1950s: "Prince Philip", named after Prince Philip, Duke of Edinburgh. The script was adapted from the story of Charles Perrault by Erdman Penner, with additional story work by Joe Rinaldi, Winston Hibler, Bill Peet, Ted Sears, Ralph Wright, and Milt Banta. The film was directed by Les Clark, Eric Larson, and Wolfgang Reitherman, under the supervision of Clyde Geronimi. It was the last animated feature produced by Walt Disney to be based upon a fairy tale, and the first one to be shot in Super Technirama 70, one of many large-format 70mm film processes (only one more animated film, The Black Cauldron, has been shot in Super Technirama 70). The Walt Disney Productions animated feature Sleeping Beauty was released on January 29, 1959 by Buena Vista Distribution, after spending nearly the entire decade of the 1950s in production. Mimed and danced versions of the ballet survived in the distinctly British genre of pantomime, with Carabosse, the evil fairy, a famous travesti role. Choreographer George Balanchine made his stage debut as a gilded Cupid sitting on a gilded cage, in the last act divertissements. Diaghilev staged the ballet himself in 1921 in London with the Ballets Russes. Sleeping Beauty was the first ballet that impresario Sergei Diaghilev ever saw, he later recorded in his memoirs, and also the first that ballerinas Anna Pavlova and Galina Ulanova ever saw, and the ballet that introduced the Russian dancer Rudolph Nureyev to European audiences. Besides being Tchaikovsky's first major success in ballet composition, it set a new standard for what is now called "Classical Ballet", and remained one of the all time favourites in the whole of the ballet repertoire. The ballet, with Tchaikovsky's music (his Opus 66) and choreography by Marius Petipa, was premiered in the Saint Petersburg Maryinsky Theatre on January 24, 1890. Although Tchaikovsky was maybe not all that eager to compose a new ballet (remembering that the reception of his Swan Lake ballet music, staged eleven seasons earlier, had only been lukewarm), he set to work with Vsevolovsky's scenario. When Ivan Vsevolozhsky, the Director of the Imperial Theatres in Saint Petersburg, wrote to Tchaikovsky on May 25, 1888, suggesting a ballet based on Perrault's tale, he also cut the violent second half, climaxed the action with the Awakening Kiss, and followed with a conventional festive last act, a series of bravura variations. Though Hérold popularized his piece with a piano Rondo brilliant based on themes from the music, he was not successful in getting the ballet staged again. Before Tchaikovsky's version, several ballet productions were based on the "sleeping beauty" theme, amongst which one from Eugène Scribe: in the winter of 1828–1829, the French playwright furnished a four-act mimed scenario as a basis for Aumer's choreography of a four-act ballet-pantomime La Belle au bois dormant. Scribe wisely omitted the violence of the second part of Perrault's tale for the ballet, which was set by Hérold and first staged at the Académie Royale, Paris, April 27, 1829. ("Lindoro" was the name assumed by the amorous Count Almaviva in Rossini's Barber of Seville.). Composer Michele Carafa's Belle au Bois Dormant, with the famous tenor Adolphe Nourrit—more famous for his late Rossini and early Meyerbeer roles—creating the role of the Prince Lindor, opened March 2, 1825, at the Théâtre de l'Opéra, Paris. The King returned in the nick of time and the Ogress, being discovered, threw herself into the pit she had prepared and was consumed, and everyone else lived happily ever after. There was a tearful secret reunion in the cook's little house, while the Ogre Queen was satisfied with a hind prepared with sauce Robert. Soon she discovered the trick and prepared a tub in the courtyard filled with vipers and other noxious creatures. When the Ogre Queen demanded that he serve up the Princess Queen, she offered her throat to be slit, so that she might join the children she imagined were dead. The Ogre Queen sent the Princess Queen and the children to a house secluded in the woods, and directed her cook there to prepare the boy for her dinner, with a sauce Robert. The humane cook substituted a lamb, which satisfied the Ogre Queen, who demanded the girl, but was satisfied with a kid prepared in the same excellent sauce. Once he had acceded to the throne, he brought the Princess and the children to his capital, which he then left in the regency of the Queen Mother, while he went to make war on his neighbor the Emperor Contalabutte, ("Count of The Mount"). Secretly wed by the reawakened Royal almoner, the Prince continued to visit the Princess, who bore him two children, L'Aurore and Le Jour, which he kept secret from the Queen his mother, who was of an Ogre lineage. and, in modern versions, they all lived happily ever after. He kissed the princess, everyone in the castle woke to continue where they had left off.. Eventually, a prince arrived, and, hearing the story of the enchantment, braved the wood, which parted at his approach, and entered the castle. The good fairy returned and put everyone in the castle to sleep. The wicked fairy's curse was fulfilled. The Princess asked to try the unfamiliar task and the inevitable happened. When the princess was fifteen or sixteen she chanced to come upon an old woman in a tower of the castle, who was spinning. The king forbade spinning on distaff or spindle, or the possession of one, upon pain of death, throughout the kingdom, but all in vain. A good fairy, though unable to reverse the spell, altered its effect so that the princess, instead of dying, would fall asleep for a hundred years, until awakened by the kiss of a prince's son. However, a wicked fairy who had been overlooked placed the princess under an enchantment as her gift, saying that, on reaching adulthood, she would prick her finger on a spindle and die. At the christening of a long-wished-for princess, fairies invited as godmothers offered gifts of beauty, wit, grace, and musical talents. The basic elements of Perrault's narrative are in two parts. More than many fairy tales, Sleeping Beauty partakes of many deep European myths, both pagan and Christian. Since Tolkien's generation, however, the most familiar Sleeping Beauty has become the Walt Disney animated film (1959), which draws as much from the Pyotr Ilyich Tchaikovsky ballet (Saint Petersburg, 1890) as from Perrault. Tolkien noted that Perrault's cultural presence is so pervasive that, when asked to name a fairy tale, most people will cite one of the eight stories in Perrault's collection. R. R. Professor J. 39). Sleeping Beauty ("La Belle aux bois dormant") is a fairy tale classic, the first in the set published in 1697 by Charles Perrault, Contes de ma Mère l'Oye ("Mother Goose Tales"). Elements of the story are contained in Giambattista Basile's Pentamerone (published 1634), in the tale Sun, Moon and Talia (ch. |