Roger Bacon Roger Bacon , also known as Doctor Mirabilis , was one of the most famous Franciscan friars of his time. He was an England philosopher who placed considerable emphasis on empiricism, and has been presented as one of the earliest advocates of the modern scientific method in the West; though later studies have emphasized his reliance on occult and alchemy traditions.
	Roger Bannister Sir Roger Gilbert Bannister Order of the British Empire is a United Kingdom former athlete best known as the first man to run the mile in 4 minute mile. Bannister became a distinguished neurology. He was born in Harrow, London, London, England.
	Roger Fry Roger Eliot Fry was an England artist and critic, and a member of the Bloomsbury group. Despite establishing his reputation as a scholar of the Old Masters, as he matured as a critic he became an advocate of more recent developments in French painting, to which he gave the name Post-Impressionism.
	Roger Sherman Roger Sherman, was the only person to have signed all four basic documents of American sovereignty: the Continental Association of 1774, the United States Declaration of Independence, the Articles of Confederation, and the United States Constitution.
	Roll Call Published Monday to Thursday when the United States Congress is in session and Mondays only during recess, Roll Call provides its readers with up-to-the-minute news of the legislative and political maneuvers that happen every day on Capitol Hill. In addition to breaking news, readers get insight from such respected Washington, D.C. analysts as Morton Kondracke, Stuart Rothenberg, and Norman J. Ornstein, plus political coverage of Congressional elections across the country.
	Roll film Rollfilm or roll film is any type of photographic film which is wound on a spool with paper backing, as opposed to film which is wound in a cartridge. Confusingly, rollfilm was originally often referred to as "cartridge" film because of its resemblance to a shotgun cartridge. The opaque backing paper allows rollfilm to be loaded in daylight and is typically printed with frame number markings which can be viewed through a small red window at the rear of the camera.
	Rolled oats The oat, like some other cereals, has a hard, inedible outer husk that must be removed before the grain can be eaten. After the hulls have been removed from the bran oat grains they are called groats. Oat groats can be used as cereal, but since the bran layer makes the grains tough to chew and contains an enzyme that can cause the oats to go rancidification, oat groats are usually steam-treated to soften them and denature the enzymes.
	Roller The Rollers are an Old World family of near passerine birds. They resemble crows in size and build, but are more closely related to the kingfishers and bee-eaters. They share the colourful appearance of those groups, blues and browns predominating. The two inner front toes are connected, but not the outer one.
	Roller coaster The roller coaster is a popular amusement ride developed for amusement parks and modern theme parks. LaMarcus Adna Thompson patented the first roller coaster on January 20, 1885. In essence a specialised railroad system, a coaster consists of a track that rises and falls in specially designed patterns, sometimes with one or more roller coaster inversions that turn the rider briefly upside down.
	Roller skating Roller skating is travelling on smooth terrain with roller skates. It is a form of recreation as well as a sport, and can also be a form of transportation. Skates generally come in two basic varieties: inline skates, and traditional quad skates, though some have experimented with a single-wheeled "quintessence skate" or other variations on the basic skate design.
	Rolling hitch The Rolling hitch is a knot used to attach a rope to a rod, pole, or other rope. It is used for lengthwise pull along an object rather than at right angles, as with most other hitches. The Rolling hitch is designed to resist lengthwise movement for only a single direction of pull.Clifford W.
	Rolling papers Rolling papers are small sheets, rolls, or leaves of paper which are sold for rolling one's own cigarettes either by hand or with a rolling machine. When rolling a cigarette, one fills the rolling paper with tobacco, Shag, Cannabis or other herbs. They are most commonly made with wood pulp, hemp, flax, or rice as a base material.
	Rolling pin A rolling pin is a cylindrical List of food preparation utensils used to shape and flatten dough. Two styles of rolling pins are found; roller and rods. Roller types consists of a thick cylindrical roller with small handles at each end; rod type rolling pins are usually thin tapered batons.
	Rolling Stock Rolling Stock was a newspaper of ideas and a chronicle of the 1980s published in Boulder, Colorado, Colorado by Ed Dorn and Jennifer Dunbar Dorn. The paper had a regional motif, but featured correspondents covering the world, including Woody Haut on Labor, John Daley on Law, Roger Echo-Hawk on Native Americans in the United States Affairs, Nick Sedgwick on Golf, Stan Brakhage on Film, Jane Brakhage on Lump Gulch, Dick Dillof in Montana, Lucía Berlin in Califo
	Rollover Rollover is a type of car accident, where a vehicle turns over on its side or roof. The main cause for rolling over is turning too sharply while moving too fast. The force of inertia is combined with the force of gravity. When the combined force as applied to the centre of vehicle's mass falls outside of the rectangle formed by the wheels, the vehicle starts to turn over.
	Rolodex A Rolodex is a rotating file device used to store business contact information. The Rolodex holds specially shaped index cards; the user writes the contact information for one person or company on each card. Many users avoid the effort of writing by taping the contact's business card directly to the Rolodex index card.
	ROMA Representational Oligonucleotide Microarray Analysis is a technique that was developed by Michael Wigler and Rob Lucito at the Cold Spring Harbor Laboratory in 2003. Wigler and Lucito currently run laboratories at CSHL using ROMA to explore genomic copy number variation in cancer and other genetic diseases.
	Romaine lettuce Romaine or Cos lettuce is a variety of lettuce which grows in a long head of sturdy leaves with a firm rib down the center. Unlike most lettuces, it is tolerant of heat.
	Roman calendar The Roman calendar changed its form several times in the time between founding of Rome and the fall of the Roman Empire. This article generally discusses the early Roman or 'pre-Julian' calendars. The calendar used after 46 BC is discussed under the Julian calendar.
	Roman Catholic Church The Roman Catholic Church or Catholic Church is the Christianity Ecclesia in full communion with the Pope, the Bishop of Rome, currently Pope Benedict XVI. It traces its origins to the One, Holy, Catholic, and Apostolic Church founded by Jesus, with its traditions first established by the Twelve Apostles and maintained through unbroken Apostolic Succession.
	Roman Emperor "Roman Emperor" is the term historians use to refer to rulers of the Roman Empire, after the epoch conventionally named the Roman Republic. In ancient Rome there was no actual title of "Roman Emperor", and there was never a single office corresponding to it. Rather, the title "Roman Emperor" is a convenient shorthand for a complicated collection of offices and powers.
	Roman Empire The Roman Empire was a phase of the ancient Rome civilization characterized by an autocratic form of government. The earlier Roman Republic had been devastated and weakened by the conflict between Gaius Marius and Sulla, followed by the civil war of Julius Caesar against Pompey.
	Roman Jakobson Roman Osipovich Jakobson was a Russian thinker who became one of the most influential linguistics of the 20th century by pioneering the development of structuralism of language, poetry, and art.
	Roman legion The Roman legion was the basic military unit of the ancient Rome Roman army. It consisted of a core of heavy infantry , with Auxiliaries cavalry and ranged troops, typically skirmishers. The size of a typical legion varied widely throughout the history of ancient Rome, with complements ranging from 5000-6000 men in the republican period of Rome, to the fairly standard number of around 5,400 in the early and middle imperial period and finally to on average 1000-2000 men in the very
	Roman Nose Roman Nose, a.k.a. Arched Nose was a Cheyenne warrior society leader and one of the most esteemed warriors of the Cheyenne#19th Century/Indian Wars of the 1860s. A member of the Northern Cheyenne, Roman Nose opposed treaty with the Federal government of the United States while other leaders urged peace.
	Roman numerals The system of Roman numerals is a numeral system originating in ancient Rome, and was adapted from Etruscan numerals. The system used in classical antiquity was slightly modified in the Middle Ages to produce the system we use today. It is based on certain letters which are given values as numerals.
	Roman Republic The Roman Republic was a phase of the Ancient Rome characterized by a republican form of government. The republican period began with the overthrow of the Roman Kingdom in 510 BC and lasted until its subversion , through a series of Roman Republican civil wars, into the Roman Empire.
	Romance languages The Romance languages, a major branch of the Indo-European languages, comprise all languages that descended from Latin, the language of the Roman Empire. The Romance languages have more than 600 million native speakers worldwide, mainly in the Americas, Europe, and Africa, as well as in many smaller regions scattered through the world.
	Romances Romances is a bolero album by Luis Miguel, released in 1997. It won the Best Latin Pop of 1998 award.
	Romanesque architecture The term Romanesque, like many other stylistic designations, was not a term contemporary with the art it describes but an invention of modern scholarship to categorize a Cultural movement. The term "Romanesque" attempts to link the architecture, especially, of the 11th century and 12th century centuries in Middle Ages Europe to Roman Architecture based on similarities of forms and materials.
	Romania Romania: is a country in Southeastern Europe. Romania borders Hungary and Serbia to the west, Ukraine and Republic of Moldova to the northeast, and Bulgaria to the south. Romania has a stretch of sea coast along the Black Sea, and the eastern and southern Carpathian mountains run through its center.
	Romanians ], 26 Nov 2004. Reprinted at , retrieved 18 Dec 2005. Category:Ethnic groups in Europe Category:Ethnic groups in Serbia Category:Ethnic groups in Ukraine Category:Ethnic groups in Vojvodina Category:Ethnic groups of Romania Category:Ethnic groups in Hungary Category:Romanian people
	Romanov The House of Romanov was the second and last royal dynasty of Russia, which ruled Muscovy and the Russian Empire for five generations from 1613 to 1762. From 1762 to 1917 Russia was ruled by a combined branch of the House of Romanov and the House of Oldenburg, known as Holstein-Gottorp-Romanov.
	Romansh Romansh is one of the four national languages of Switzerland, along with German , Italian language and French language. It is one of the three Rhaeto-Romance languages, believed to have descended from the Vulgar Latin variety spoken by Roman era occupiers of the region, and, as such, somewhat resembles Italian, French, Spanish and Catalan.
	Romanticism Romanticism was an artistic and intellectual movement that originated in late 18th century Western Europe. In part a revolt against aristocratic social and political norms of the The Age of Enlightenment and a reaction against the rationalization of nature, in art and literature it stressed strong emotion as a source of aesthetic experience, placing new emphasis on such emotions as trepidation, horror, and the awe experienced in confronting the Sublime of nature.
	Rome Rome is the capital of Italy and of its region, called Latium. It is located across the confluence of the Tiber and Aniene rivers. It was once the capital of the Roman Empire, the most powerful, largest and longest lasting empire of classical Western civilization.
	ROMP The ROMP or Research Micro Processor chip, also known in some circles as 032, was first in silicon in 1981 and was originally designed to be used in office products. It was intended as a follow-on to a mid-1970's processor called the "OPD Mini Processor", which was used in text editing systems such as the IBM Office System/6 and DisplayWriter.
	Rompers Rompers is an arcade game released in 1989 by Namco only in Japan. It runs on Namco System 1 hardware.
	Ronald Reagan Ronald Wilson Reagan was the 40th President of the United States of the United States and the 33rd Governor of California of California . At age 69, he was the oldest person elected President. Before entering politics, Reagan was a popular motion picture actor, as well as head of the Screen Actors Guild, and a motivational speaker.
	Rood Rood has several distinct meanings, all derived from the same basic etymology. "Rood" is an archaic word for pole, from Anglo-Saxon language rod pole, specifically crucifix, from Proto-Germanic *rodo, cognate to Old Saxon roda, Old High German ruoda rod; the relation of rood to rod, from Anglo-Saxon rodd pole is unclear; the latter was perhaps influenced by Old Norse rudda club).
	Rood screen The Rood screen was a common feature in late medieval church architecture, dividing the chancel from the nave. It was often surmounted by a loft on which stood the Rood itself, a large figure of the Crucifixion Jesus, set high up, usually level with the springing of the chancel arch.
	Roof The roof, the top covering of a building, is one of the universal structures found on all buildings. Its purpose is primarily to shed water off the building and to prevent it from accumulating on top. To achieve this goal, Roofs may be highly pitched or low sloped in form. Low sloped roofs are commonly found on industrial/commercial type structures.
	Roof garden A roof garden is any garden on the roof of a building. Humans have grown plants atop structures since antiquity. Besides the decorative benefit, roof plantings may provide food, temperature control, architectural enhancement, and recreational opportunities. Available gardening areas in cities are often seriously lacking, which is likely the key impetus for many roof gardens.
	Rooibos Rooibos is a member of the Fabaceae family of plants and is used to make a tisane. The product has been popular in South Africa for generations and is now consumed in many countries.
	Rookery A rookery is a colony of breeding animals. The term is most commonly applied to the nesting place of birds, such as the crow and Rook, a bird similar to the crow, but smaller. The term is also used to describe the breeding grounds of the penguin and seabirds in general.
	Rookie Rookie is a terminology for a person who is in their first year of play of their sport and has little or no professional experience. In both North America and the rest of the English-speaking world, the term also has the more general meaning of anyone new to a profession, training or activity, or occasionally to a freshman.
	Room A room is an enclosed space with a ceiling in a house or other building. A room may have any number of doors and windows regulating light, Earth's atmosphereflow and access to the room. Large rooms are often named halls, small ones closets. Hall may also refer to a long, narrow room which serves purely as an access to other rooms .
	Rooster A cock is a male chicken, the female being a chicken. A young cock is called a rooster or a cockerel. The term "rooster" is reputedly so used because the cock is said to roost over clutches of egg to guard them. In fact, "roosting" is the action of perching aloft to sleep at night, and is done by both sexes.
	Root In vascular plants, the root is that organ of a plant body that typically lies below the surface of the soil . However, this is not always the case, since a root can also be aerial_root or aerating . On the other hand, a stem normally occurring below ground is not exceptional either .
	ROOT ROOT is an Object oriented programming software package developed by CERN. It was originally designed for particle physics data analysis and contains several features specific to this field, but it is also commonly used in other applications such as astronomy and data mining.
	Root beer Root beer is a fermentation beverage made from a combination of vanilla, cherry tree bark, licorice, sarsaparilla root, sassafras root bark , nutmeg, anise, and molasses among other ingredients. Many local brands of root beer exist, and homemade root beer is made from concentrate or from actual roots.
	Root beer float A root beer float is a dessert that consists of root beer and ice cream. It is usually made by scooping ice cream into a glass or mug, and then pouring in root beer. The microscopic bubbles present in the ice cream act as "nucleation" which trigger the formation of large bubbles of carbon dioxide.
	Root canal Root canals are the long passages full of soft tissue deep within the dentin of a tooth, adjoining the pulp chamber. In dentistry, a pulpectomy is an endodontics treatment to cure an infection of the root canal; informally a root canal. A root canal, coupled with internal tooth bleaching, is also used to fix teeth that have blackened because of infiltration of decayed soft tissue into the dentin in the teeth, most often seen in frontal incisor that have been injured through
	Root system In mathematics, a root system is a configuration of vector spaces in a Euclidean space satisfying certain geometrical properties. The concept is fundamental in Lie group theory. Since Lie groups have come to be used in most parts of mathematics during the twentieth century, the apparently special nature of root systems belies the number of areas in which they are applied.
	Root vegetable Root vegetables are underground plant parts used as vegetables. They are called root vegetables for lack of a better generic term, but include both true roots such as tuberous roots and taproots, as well as non-roots such as tubers, rhizomes, corms, and bulbs. Several types contain both taproot and hypocotyl tissue, and it may be difficult to distinguish the two.
	Rope A rope is a length of fibers, twisted or braid together to improve strength for pulling and connecting. It has tensile strength but is too flexible to provide compressive strength. Rope is thicker and stronger than similarly constructed cord, line, string, or twine.
	Roridula Roridula is a South African genus of plants that, whilst having many of the adaptations of a carnivorous plant, such as the possession of insect-trapping sticky hairs, does not derive any nutrients directly from the animals it traps. Instead, it is mutualism with a species of bug, Pameridea roridulae, which feeds on the trapped insects.
	Rorippa Rorippa is a flowering plant genus of some 80 species, including several plants previously placed in the genus, Nasturtium. These are herbaceous perennial plants in the cabbage family, related to garden cress and Mustard plant. Species are native to Europe through central Asia, Africa, and North America.
	Rorqual Rorquals are the largest group of baleen whales, with nine species in two genus. They include the largest animal that has ever lived, the Blue Whale, which can reach 150 tonnes, two others that easily pass 50 tonnes, and even the smallest of the group, the Northern Minke Whale, reaches 9 tonnes.
	Rosa Parks Rosa Louise McCauley Parks was an African American Sewing and civil rights activism whom the Congress of the United States dubbed the "Mother of the Modern-Day American Civil Rights Movement ". Parks is famous for her refusal on December 1, 1955 to obey bus driver James F. Blake's demand that she give up her seat to a white passenger.
	Rosa Ponselle Rosa Ponselle, was an United States soprano. She was born Rose Melba Ponzillo on January 22, 1897, in Meriden, Connecticut, the youngest of three children. Her parents were Italian people immigrants. Rosa had an exceptionally mature voice at an early age and, at least in her early years, sang on natural endowment with little, if any, vocal training.
	Rosaceae The Rosaceae or rose family is a large family of plants, with about 3,000-4,000 species in 100-120 genera. Traditionally it has been divided into four subfamilies: Rosoideae, Spiraeoideae, Maloideae, and Amygdaloideae. These subfamilies are primarily diagnosed by the structure of the fruits, although this approach is not followed universally.
	Rosary The Rosary , is an important and traditional Sacramentals devotion of the Roman Catholic Church consisting of a set of prayer beads and a system of set prayers. The Rosary combines prayer and meditation centered around sequences of reciting the Lord's Prayer followed by ten recitations of the "Hail Mary" prayer; one such sequence is known as a decade.
	Rose A rose is a flowering shrub of the genus Rosa, and the flower of this shrub. There are more than a hundred species of wild roses, all from the northern hemisphere and mostly from temperate regions. The species form a group of generally thorny shrubs or liana, and sometimes trailing plants, reaching 25 m tall, rarely reaching as high as 20 m by climbing over other plants.
	Rosé A ros? wine has some of the color typical of a red wine, but only enough to turn it pink. The pink color can range from a pale orange to a vivid near-purple, depending on the grapes and wine making techniques.
	Rose chafer The rose chafer is a reasonably large beetle growing to 18 millimetre long that has metallic green coloration with a distinct v shape across the upper back just below the head and having several other irregular small white lines and marks. The underside is a coppery colour. Rose chafers make laborious movements amongst Poaceae and other vegetation, and are capable of flight.
	Rose hip The rose hip, also called the rose haw, is the pome fruit of the rose plant. It is typically red to orange but may be dark purple to black in some species. Rose hips of some species, especially Rosa canina, have been used as a source of Vitamin C. Rosehips are commonly used as a herbal tea, often blended with hibiscus and as an Vegetable oil.
	Rose quartz Rose quartz is a type of quartz which exhibits a pale pink to rose red hue. The color is usually considered as due to trace amounts of titanium, iron, or manganese, in the massive material. Some rose quartz contains microscopic rutile needles which produces an asterism in transmitted light.
	Rose window Most commonly, and especially in Gothic architecture, a rose window is a circular stained glass window, with mullions and Tracery that generally radiate from the centre. In churches and cathedrals its use sometimes alludes to the Virgin Mary, who is called the Mystical Rose; and occasionally to elaborate forms based on the rose.
	Roseate Spoonbill The Roseate Spoonbill is a wading bird of the ibis and spoonbill family Threskiornithidae. It is a mainly resident breeder in South America, the Caribbean, and the Gulf coast of the USA. Roseate Spoonbill nests in mangrove trees, laying 2-5 egg. It does not usually share colonies with storks or herons.