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Octal notation is a method of representing octal (base 8) numbers using the eight numerals 0-7. Octal notation uses positional notation and powers of 8 to express to express numbers in a manner similar to that of the familiar decimal syste...
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Octane rating is a method for describing antiknock properties of gasoline. Knocking is a pinging sound produced by internal combustion engines when fuel ignites prematurely during the engine's compression cycle. Because knocking can...
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1875-1957 French bacteriologist who with Jules Bordet described the bacterium responsible for causing whooping cough (Pertussis). While working at the Pasteur Institute in Brussels, the two researchers successfully cultured the bacterium i...
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Hamelin, Octave(1856–1907) Ernst Heinrich Haeckel, the French idealist philosopher, carried further the neocriticism of Charles Renouvier and Jules Lachelier. Renouvier had criticized the categories of Immanuel Kant, maintaining tha...
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Octavia Butler (born 1947) is best known as the author of the Patternist series of science fiction novels in which she explores topics traditionally given only cursory treatment in the genre, including sexual identity and racial conflict. ...
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An octet is a storage unit that is always composed of a sequence of exactly eight bits. A bit (a contraction of binary digit) is the smallest piece of information (or unit of data) used by a computer. A bit possesses a binary value, either...
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The octet rule is used to describe the attraction of elements towards having, whenever possible, eight valence-shell electrons (4 electron pairs) in their outer shell. Because a full outer shell with eight electrons is relatively stable, m...
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Cayley algebra is the branch of the non-commutative algebras dealing with matrices. English mathematician Arthur Cayley developed it during 1840 to 1890. It is the only non-associative division algebra with real scalars. Division algebra i...
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Can two divorced men share an apartment without driving each other crazy? That was the question that fueled a play, a movie, and a classic sitcom. Neil Simon's 1965 play The Odd Couple and the subsequent 1967 movie, starring Walter ...
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Ode on the Conquest of Amorium by Abu Tammam In 837 or 838 C.E. Abu Tammam went before the caliph, or Islamic ruler, al-Mu`tasim at Samarra and under his patronage became the most celebrated panegyric or praise poet of his a...
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Ode on the Reconquest of al-Hadath by al-Mutanabbi Al-Mutanabbi is one of the most celebrated poets in the Arabic literary tradition. He was born Ahmad ibn al-Husayn in the city of Kufah, Iraq, in 915, then traveled around t...
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VALHǪLL is the hall of Óðinn (Odin) in Norse mythology. The fullest descriptions of it are found in the Prose Edda (c. 1220–1230) of the Icelandic mythographer Snorri Sturluson and in the Eddic poem Grímn...
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Swedish soil scientist and chemist Svante Odén is known because of his efforts in the 1960s to publicize the problem of acid rain and connect it with the deterioration of forests and fisheries. Acid rain was known to European scient...
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The instrument panel displays a variety of information for the driver's use. Some dashboards contain a plethora of instruments that report aspects of an automobile's performance, and others hold "idiot" lights that light up only to indicat...
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Refuse-handlers and many industries release unpleasant odors into the air which can travel for miles. Odors inside factories can also make it difficult for people to work, and pollutants can impart a strong odor to water. Odors can be re...
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1286?-1331 Italian Missionary Odoric of Pordenone was a Franciscan missionary who traveled extensively throughout Asia. He was the first European traveler to describe distinctions between Oriental and Occidental culture accurately and in d...
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"Could I forget that kingly man, Odysseus? There is no mortal half so wise; no mortal gave so much to the lords of the open sky." proclaims Zeus, the king of all gods in Homer's The Odyssey. He, among countless others, harbors h...
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Oedipus the King would not have been successful throughout centuries as a tragic play if Oedipus were clearly responsible for his own tragedy. I attribute the play's ongoing success to Oedipus' innocence - or at least the debate over it ...
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About 1,063 pages (318,920 words) in 129 products |
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490?-420? B.C. Greek mathematician and astronomer credited by some sources with discovering that the Sun moves in an oblique circle from east to west (the obliquity of the zodiac). He also calculated the length of the Great Year of the Sun...
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Of Human Bondage by W. Somerset Maugham William Somerset Maugham, born in 1874, was orphaned at the age of ten and placed under the guardianship of his uncle, the vicar of All Saints' Church in Whitestable. Driven by a restless craving for ...
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About 1,144 pages (343,048 words) in 28 products |
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John Steinbeck's novelette Of Mice and Men contains an abundance of symbols which work together to produce a deeper meaning. George's idealistic farm and Lennie's alfalfa-eating rabbits symbolize happiness, protection, freedom, and th...
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About 924 pages (277,266 words) in 162 products |
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r. 757-796 Anglo-Saxon King Ruler of Mercia, a kingdom in England, Offa left behind what is undoubtedly the third most well-known structure of pre-Norman Britain, after Stonehenge and Hadrian's Wall. Like the latter, Offa's D...
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Office productivity is influenced by a number of factors, one of which is office layout. Because office layout influences the entire white-collar-employee segment of the organization, its importance to organizational productivity should ne...
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Humans have been using nuclear materials for nearly 50 years. Nuclear reactors and nuclear weapons account for the largest volume of these materials, while industrial, medical, and research applications account for smaller volumes. One o...
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Since the space program began in the early 1960s, there has been talk of the possible commercial exploitation of space. One of the earliest satellites launched into space was the giant metallic Mylar balloon called "Echo." Ra...
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The United States Office of Research Integrity (ORI) has broad responsibilities for monitoring investigations of misconduct and promoting integrity in research supported by the Public Health Service (PHS). It is administratively located in...
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When World War II began in 1939, the United States was years behind Germany in technical military research. Foreign weaponry was clearly superior. The United States had to catch up and catch up fast. On June 12, 1940, Dr. Vannevar Bush (18...
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In 1977 the Office of Surface Mining(OSM) was created to police coal extraction within the United States and to enforce the federal Surface Mining Control and Reclamation Act (SMRCA). Under the auspices of OSM, citizens are empowered to ...
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The U.S. Congress established the Office of Technology Assessment (OTA) in 1972, late in the administration of President Richard Nixon (1969–1974). The brainchild of Representative Emilio Q. Daddario, a Connecticut Democrat (1959...
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Energy use for office equipment ranks behind only lighting, heating, and air conditioning in the commercial sector. And because of growing use of office equipment, the hope is that more efficient equipment will offset the greater u...
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Drug labeling refers to all of the printed information that accompanies a drug, including the label, the wrapping and the package insert. Drug labeling is regulated by the Food and Drug Administration's Division of Drug Marketing, Advertis...
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Off-road vehicles (ORVs) include motorcycles, dirt bikes, snowmobiles, bicycles, and all-terrain vehicles (ATVs) that can be ridden or driven in areas where there are no paved roads. While the use of off-road vehicles has gained in popul...
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The goal of each living thing is to pass on its own genetic information. The limited resources of the world have created a complex, biological community under intense selective pressure. In order to ensure survival of oneself and one...
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The Ogallala Aquifer is an extensive underground reservoir that supplies water to most of the irrigated agriculture in the central United States. Discovered early in the nineteenth century, this aquifer—also known as the High Plai...
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The Ogasawara (or Bonin) Islands lie between the Japanese mainland and the Marianas in the North Pacific. The first known inhabitants were a tiny group of American, European, and Pacific Islander settlers who arrived on the main island of ...
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OGYŪ SORAI (1666–1728), Japanese Confucian of the Ancient Learning school (Kogaku). Sorai was born in Edo (modern-day Tokyo), the son of Ogyū Hōan (1626–1705), personal physician to Tokugawa Tsunayoshi (1...
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Ohm's law is a relationship between the voltage across an electric circuit, the electrical resistance in the circuit, and the current in the circuit. This law is named after its discoverer, Georg Simon Ohm. Ohm found that for most electric...
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Oil supply is on a toboggan ride down the charts, but the world's demand for it is evermore increasing. Rising prices of this resource is an unequivocal topic for global debates and delegations. Each day, more than a century's worth of adv...
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Four main issues control the occurrence and distribution of oil and gas: source, reservoir, seal, and trap. A source is a fine-grained rock unit containing sufficient organic matter so that when it is heated and/or placed under pressure (m...
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The idea of burning oil to produce artificial light probably dates backs hundreds of thousands of years, to when primitive peoples cooked meat by open fire and must have noticed the light given off by fat dripping onto flames. By 70,000 B....
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The Oil Man of Obange by John Munonye John Munonye was born in 1929 in Akokwa, Imo State, Nigeria. Like most young boys in the region, he was raised as the son of a farmer. But unlike his father, Munonye attended Christian schools and recei...
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Oil refining refers to the processes involved in converting crude oil into useful petroleum products. Crude oil is often called "black gold" because of its thick, black consistency and high value. Crude oil is a form of petroleum, a compli...
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The countries of the Persian Gulf region sit atop 65 percent of the world's total oil reserves, and Western Asia's critical importance to the world oil market is obvious. Iraq has 11 percent of world oil reserves, and Iran ha...
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The term secondary recovery technique refers to any method for removing oil from a reservoir after all natural recovery methods have been exhausted. The term has slightly different meanings depending on the stage of recovery at which suc...
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The term oil shale is technically incorrect in that the rock to which it refers, marlstone, is neither oil nor shale. Instead, it is a material that contains an organic substance known as kerogene. When heated to a temperature of 900...
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Oil spills have been a major problem since oil was first shipped. Oil spills effect the environment in many ways and there are many ways to help the environment. There are many causes for oil spills; the impact of the spill can be fatal; ...
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Petroleum occurs naturally in the earth in porous rock, found anywhere from thousands of meters underground all the way to the earth's surface. The porous layer of rock normally lies between two nonporous layers, so oil does not flo...
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The discovery of the electron in 1897 by English physicist J.J. Thomson lead to the beginning of knowledge of atomic structure. Thomson showed that charge came in discrete quanta, and indirectly measured the charge-to-mass ratio of the ele...
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(2002 est. pop. 1.2 million). Oita Prefecture is situated in the northeast of Japan's island of Kyushu, where it occupies an area of 6,338 square kilometers. Oita's primary geographical features are the Kyushu Mountains, a vo...
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The Ojibwa ("oh-jib-wah") are a woodland people of northeastern North America. In the mid-seventeenth century there were approximately 35,000 Ojibwa on the continent. According to the 1990 census, the Ojibwa were the third-l...
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