Bologna Bologna is the capital city of Emilia-Romagna in northern Italy, in the Pianura Padana, between the Po River and the Apennines, exactly, between Reno River and Svena River. Bologna is the first railway and motorway hub in Italy; its Fiera District is the 2nd in Italy and the 4th in Europe, with important international exhibitions, like Motorshow , Saie, Saiedue and Cersaie, , Cosmoprof , Lineapelle, etc.
	Bolometer A bolometer is a device for measuring incident electromagnetic radiation. It was invented in 1878 by the American astronomer Samuel Pierpont Langley. It consists of an "absorber" connected to a heat sink through an insulating link. The result is that any radiation absorbed by the absorber raises its temperature above that of the heat sink—the higher the power absorbed, the higher the temperature will be.
	Bolshevik Bolsheviks were members of the Bolshevik faction of the Marxist Russian Social-Democratic Labour Party. Bolsheviks had an extreme socialist and internationalist outlook, and were opponents of the Imperial Russia and the Russian Orthodox Church.
	Bolt cutters A bolt cutter is a scissors-like tool used for cutting heavy chains, bolts and wire mesh. They typically have very long handles and short blades, in order to maximize leverage and cutting force. There are different types of cutting blades for bolt cutters. Angle cut, center cut, shear cut, and clipper cut.
	Bomb A bomb is an explosive device that generates and releases its energy very rapidly as an explosion and as a violent, destructive shock wave. Most bombs do not contain more energy than ordinary fuel, except in the case of a nuclear weapon. A bomb is usually some kind of container filled with explosive material, designed to cause destruction when set off.
	Bombardier company_name = Bombardier Inc. | company_logo = | company_type = Public company: | foundation = Valcourt, Quebec | location = Montreal, Canada | key_people = Joseph-Armand Bombardier, founder | industry = Aerospace engineering / Railways |
	Bombardier beetle Bombardier beetles are ground beetles in the tribes Brachinini, Paussini, Ozaenini, or Metriini - more than 500 species altogether - that are most notable for the defense mechanism that gives them their name: They can fire a mixture of chemicals from special glands in their posterior.
	Bombax Bombax is a genus of three to eight species of trees, native to tropical and subtropical regions of the Indian Subcontinent, tropical Southeast Asia, northern Australia, and tropical Africa. Common names include silk cotton trees, semul, simul, simal, red cotton trees, or Indian kapok trees.
	Bombax ceiba Bombax ceiba, like other tree from genus Bombax, is commonly known as cotton tree or tree cotton. The tropical tree is with straight tall truck and its leaves are deciduous in winter. Red flowers with 5 petals were born in the spring before green leaves. Small husks raped contain fibres like cotton.
	Bomber A bomber is a military aircraft designed to attack ground targets, primarily by dropping bombs. *Strategic bombers are primarily designed for long-range strike missions against strategic targets such as supply bases, bridges, factories, and shipyards in order to damage an enemy's war effort.
	Bombing Run Bombing Run is a team-based gametype in the Unreal Tournament first-person shooter series, introduced in Unreal Tournament 2003. It can best be described as Unreal-style American football where goal of the game is to grab the ball, take it through enemy territory, and score in the opposition's goal.
	Bombyliidae Bombyliidae is a large family of fly with hundreds of genus, although their life cycles are not well known. Adults generally feed on nectar and pollen, thus are pollinators of flowers. They superficially resemble bees, thus are commonly called bee flies, and this may offer the adults some protection from predators.
	Bombyx mori The Silkworm is the larva or caterpillar of a moth in the family Bombycidae, that is very important economically as the producer of silk. It is the only domesticated insect, entirely dependent on humans for its reproduction and no longer occurring in the wild; silk culture has been practiced for at least 5000 years in China.
	Bonaire |- | align="center" colspan=2 | Anthem: Tera di Solo y suave biento |- | align="center" colspan=2 | |- | Capital || Kralendijk |- | Area - Total  - % water | 288 km Negligible |- | Population  - Total
	Bonanza Bonanza was an United States western/cowboy television series which aired on NBC from September 12, 1959 until January 16, 1973. Bonanza was the first network television series to film all of its episodes in color. The main sponsor of Bonanza was Chevrolet and the stars appeared endorsing their vehicles.
	Bonaparte Of Corsican origin, the Bonaparte family is the family of Napoleon I of France, who was elected as first consul of France on November 10, 1799 with the help of his brother, Lucien Bonaparte, president of the Council of Five Hundred at Saint-Cloud.
	Bone Bone, also called osseous tissue, is a type of Rockwell scale endoskeleton connective tissue found in many vertebrate animals. Bone is the main tissue of bones; organs that support body structures, protect internal organ s, facilitate Animal locomotion; and are involved with cell formation, calcium metabolism, and mineral storage.
	Bone marrow Bone marrow is the tissue comprising the center of large bones. It is the place where new blood cells are produced.
	Bonefish The bonefishes are a family of ray-finned fish that are popular as game fish in Florida, the Bahamas where two bonefish are on their 10 cent coin, and elsewhere. The family is small, with eight species in two genera. Presently the bonefishes are in their own order: Albuliformes.
	Bonfire A bonfire or balefire is a large controlled outdoor fire made from bales of straw or wood. The word is believed to be a corruption of "bone fire" deriving from a Celtic midsummer festival where animal bones were burnt to ward off evil spiritual being.
	Bong A bong or water pipe is a device used for smoking cannabis or other drugs such as salvia divinorum, tobacco, or crack cocaine. The bong is a prominent social artifact of the international body of cannabis culture. The word bong derives from the Thai word baung which refers to a cut off section of bamboo.
	Bongo drum Bongo drums or bongos are a percussion instrument.
	Bonheur Bonheur is a Norway holding company for the Olsen family. The company is listed on Oslo Stock Exchange and has ownership in numerous companies withing energy, shipping and other sectors. All investments are made 50/50 along with the partial subsidiary Ganger Rolf ASA.
	Bonito Bonito is a name given to various species of medium-sized, predatory fish of the genus Sarda, in the mackerel family, including the common or Atlantic bonito and the Pacific bonito. More generally, bonito can refer to any of various scombroid fishes related to but smaller than tuna.
	Bonn Bonn is the 19th largest city in Germany, located about 20 kilometres south of Cologne on the river Rhine in the States of Germany of North Rhine-Westphalia. It was the capital of West Germany from 1949 to 1990. From 1288 to 1803 it was the residence of the Archbishopric of Cologne.
	Bonobo The Bonobo , until recently usually called the Pygmy Chimpanzee and less often the Dwarf or Gracile Chimpanzee, is one of the two species comprising the chimpanzee genus, chimpanzee. The other species in genus Pan is Pan troglodytes, or the Common Chimpanzee.
	Bonsai Bonsai is the art of aesthetic miniaturisation of trees and plants in containers. While mostly associated with the Japanese form, "bonsai" is both derived from, and a form of Chinese penjing. In Western culture, the word "bonsai" is used as an umbrella term for both Japanese bonsai and Chinese penjing.
	Bónus B?nus is an Icelandic no-frills supermarket chain of Hagar (company). B?nus operates 24 stores in Iceland and four in the Faroe Islands. It follows the no-frills format of limited hours, simple shelves and having a giant fridge instead of chiller cabinets.
	Boô A bo? (also spelled boo or boe) is an old Saxon people building where a farmer could spend the night with his cattle if he let them graze far outside the village. The building, which had separate areas for cattle and farmer to live, would have been made with cheap materials.
	Booby The boobies are part of the rank Sulidae, a group of seabirds closely related to gannets. The boobies are large birds with long pointed wings and long bills. They hunt fish by diving from a height into the sea and pursuing their prey underwater. They have facial air sacs under their skin which cushion the impact with the water.
	Boogie Boogie is swing blues rhythm or technique originally played on the piano in boogie-woogie and adapted to guitar. As such it is often used in rock and roll and country musics. A simple rhythm guitar or accompaniment boogie pattern, sometimes called country boogie, is as follows:
	Boojum tree The Boojum or Cirio is a bizarre-looking tree in the family Fouquieriaceae, whose other members include the Ocotillos. It is nearly endemic to the Baja California Peninsula, with only a small population in the Sierra Bacha of Sonora. The peculiar distribution pattern of the mainland boojums has led Mexican botanists to conclude that they were probably transplanted to the mainland by the indigenous Seri people, who still live on Tiburn Island nearby.
	Book A book is a collection of sheets of paper, parchment or other material with a piece of text written on them, bound together along one edge within covers. Each side of a sheet is called a Page and a single sheet within a book may be called a leaf. A book is also a literary work or a main division of such a work.
	Book of Common Prayer The Book of Common Prayer is the foundational prayer book of the Church of England which was one of the instruments of the Protestant Reformation in England. . It replaced the various Latin rites which had been used in different parts of the country, with a single compact volume in English so that 'now from henceforth all the Realm shall have but one use'.
	Book of Esther The Book of Esther is a book of the Tanakh and of the Old Testament. Jewish; The Book of Esther or the Megillah is the basis for the Jewish celebration of Purim. Its full text is read aloud twice during the celebration.
	Book of Isaiah The Book of Isaiah is one of the books of the Hebrew Bible and the Christian Old Testament, written by Isaiah.
	Book of Job The Book of Job is one of the books of the Hebrew Bible. Job is a Biblical poetry set in a prose framing device. According to the Testament of Job, another name for Job is Jobab. The Septuagint identifies Job as Jobab, a descendent of Esau, a king of Edom mentioned in Genesis 36:33.
	Book of Jonah In the Hebrew Bible, the Book of Jonah is the fifth book in a series of books called the Minor Prophets . Unlike other prophetic books however, this book is not a record of a prophets words toward Israel. Instead of the poetry and prophetic prose of Isaiah or Lamentations, this book tells the story of an apparently inept prophet who becomes one of the most effective prophets in the entire Bible.
	Book of Joshua The Book of Joshua is the sixth book in both the Hebrew Tanakh and the Old Testament of the Christian Bible. This book stands as the first in the Former Prophets covering the history of Kingdom of Israel from the possession of the Promised Land to the Babylonian Captivity.
	Book of Judith The Book of Judith is a deuterocanonical book, included in the Septuagint and in the Roman Catholic and Orthodox Christian Old Testament of the Bible, but excluded by Judaism and Protestantism. It has been said that the book contains numerous historical anachronisms, which is why many scholars now accept it as unreliable history — it has been considered a parable or perhaps the first historical novel.
	Book of Mormon The Book of Mormon is one of the sacred texts of the Latter Day Saint movement, named after the prophet/historian Mormon , who according to the text compiled most of the book. It was published by the founder of the Mormon movement, Joseph Smith, Jr., in March 1830 in Palmyra , New York, New York.
	Book of Revelation The book of Revelation or The Apocalypse of John is the last Biblical canon of the New Testament in the Bible. It is the only biblical book that is wholly composed of apocalyptic literature. The book is frequently called "The book of Revelations" or simply "Revelations"; however, the title found on some of the earliest manuscripts is "The Apocalypse/Revelation of John" , and the most common title found on later manuscripts is "The Apocalypse/Revelation of the theologian" .
	Book of Ruth The Book of Ruth is one of the books of the Ketuvim of the Tanakh and of the Writings of the Old Testament . It is one of the shortest books in both Jewish and Christian scripture, consisting of only 4 chapters.
	Book of Tobit The Book of Tobit is a book of scripture that is part of the Roman Catholic Church and Eastern Orthodoxy biblical canon, pronounced canonical by the Council of Carthage of 397 and confirmed for Roman Catholics by the Council of Trent. Tobit is regarded by Protestantism as Apocrypha.
	Bookbinding Bookbinding is the process of physically assembling a book from a number of separate sheets of paper or other material.
	Bookcase A bookcase is a piece of furniture, almost always with horizontal shelves, used to store books.
	Bookend A bookend is an object designed to keep a row of books upright by placing it at the end of the row, frequently in a bookcase. They are common in library and in publishing. If bookends are not used, rows of books may slant to a side. The simple metal bookend comprised of a single sheet of steel was originally patented in the 1870s.
	Booker T. Washington Booker Taliaferro Washington was an American political leader, educator and author. He was one of the dominant figures in African American history in the United States from 1890 to 1915. Washington was born into slavery in Franklin County, Virginia. At the age of 9, he was freed from slavery and moved with his family to West Virginia, where he learned to read and write while working at manual labor jobs.
	Bookmobile A bookmobile or mobile library is a large vehicle designed for use as a library. They are designed to hold books on shelves so that when the vehicle is parked the books can be accessed by readers. They usually have sufficient space that people can also sit and read books inside them.
	Bookplate A bookplate, also known as ex libris [Latin, "from books"], is commonly a printed piece of paper pasted on one of the pages of a book, most often on the inside front cover showing ownership. They replaced book rhymes after the 19th century. Bookplates typically bear a name, motto, device, coat-of-arms, crest, badge, or any design that signifies ownership of the book.
	Bookstore A bookstore or bookshop is a retailer that primarily sells books. Bookstores can range in size from local independent bookstores offering several hundred titles to large brick-and-mortar chains offering upwards of 200,000 titles; online bookstores may offer many times more titles.
	Boolean algebra In abstract algebra, a Boolean algebra is an algebraic structure that captures essential properties of both set operations and logic operations. Specifically, it deals with the set operations of intersection , union , complement ; and the logic operations of logical conjunction, logical disjunction, logical negation.
	Boolean logic Boolean logic is a complete system for logical operations. It was named after George Boole, an English mathematician at University College Cork - National University of Ireland, Cork who first defined an algebraic structure of logic in the mid 19th century.
	Boomerang A boomerang is a simple wooden implement used for various purposes. It is primarily attributed to Australian Aborigines, but other forms are found amongst peoples of North East Africa, Arizona Indians and in India. It comes in many shapes and sizes depending on its geographic/tribal origins and intended function.
	Boondoggle Boondoggle is a North American English term which has come to refer to the performance of useless or trivial tasks while appearing to be doing something important. In the United States, the key feature of this "art" is the waste of time and/or money involved. In Canada, however, the term has come to mean, more specifically, a government scandal involving the wasting or misallocation of public funds causing a project to be well over-budget, frequently more than double or triple the original cost.
	Boot A boot is a type of footwear which covers at least the foot and usually the ankle, and sometimes extends up to the knee or even the hip. They come in every imaginable variation of height, color, material and style. Most have a heel which is clearly distinguishable from the rest of the sole, even if the two are made of one piece.
	Boot Camp Boot Camp is a software Assistant made available by Apple Computer that assists users in installing Microsoft Windows XP Service Pack 2 on X86 architecture-based Apple Macintosh computers. Boot Camp guides users through non-destructive re-partitioning of their hard disks and creating a Compact Disc image with device drivers for Windows XP.
	BOOTES BOOTES, the Burst Observer and Optical Transient Exploring System, is located in Southern Spain and makes use of two sets of wide-field cameras, 240 km apart. These two stations taking simultaneous images will allow astronomers to distinguish near-Earth objects, closer than 1 million km, from more distant phenomena, thus ruling out satellite glints, head-on meteors, etc in order to study the short duration optical transient phenomena that occur in the Universe.
	Booths Booths is a chain of supermarkets in Northern England. Most of its branches are located in Lancashire but there are also branches in Cheshire, Cumbria, North Yorkshire and West Yorkshire. It competes on quality similar to Marks & Spencer and Waitrose as opposed to value.
	Borage Borage (Borago officinalis), also known as "starflower", is an annual herb native to central and eastern Europe. It grows to a height of 60-100 cm, and is bristly-hairy all over the stems and leaf; the leaves are alternate, simple, and 5-15 cm long. The flowers are small, blue or pink, with five narrow, triangular-pointed petals.
	Boraginaceae Boraginaceae Juss. 1789, the Borage or Forget-me-not family, includes a variety of shrubs, trees, and herbs, totaling about 2,000 species in 100 genus found worldwide. A number of familiar plants belong to this family. The Boraginaceae belong, according to the Angiosperm Phylogeny Group, among the euasterid I group including the orders Gentianales, Lamiales, and Solanales, but whether they should be assigned to one of these orders or to their own is still uncertain.
	Borago Borago, common name borage, is a genus of two species of herbs with large, hairy leaf that taste mildly of cucumber, and star-shaped purple-blue flowers which are prized for their flavour. The leaves are often added to teas and salads, and the flowers have been added to wine.
	Borassus Borassus is a genus of five species of Arecaceae, native to tropical regions of Africa, Asia and New Guinea. They are tall palms, capable of growing up to 30 m high. The leaf are long, fan-shaped, 2 to 3 m in length. The flowers are small, in densely clustered spikes, followed by large, brown, roundish fruits.
	Borax |- | NFPA 704 | |- Borax is a somewhat generic name used to describe a number of closely related minerals or chemical compounds: * Anhydrous borax * Borax pentahydrate * Borax decahydrate The term borax is most often used to describe borax decahydrate. The name comes from Arabic buraq or bauraq ???? which in turn comes from Middle Persian Burag.
	Bordeaux is a Seaport city in the south-west of France, with 925,253 inhabitants in the aire urbaine at the 1999 census. It is the capital of the Aquitaine rgion in France, as well as the prfecture of the Gironde Dpartements of France.
	Border Borders define geography boundaries of political geography or legal jurisdictions, such as governments, states or Subnational entity. They may foster the setting up of buffer zones. In the past many borders were not clearly defined lines, but were neutral zones called Marches.
	Border Collie image = Border Collie 600.jpg | image_caption = A Border Collie bred to Kennel Club standards | name = Border Collie | country = Scotland, England | fcigroup = 1 | fcisection = 1 | fcinum = 297 | fcistd = akcgroup = Herding | akcstd = ankcgroup = Group 5 | ankcstd = kcukgroup = Pastoral | kcukstd = nzkcgroup = Working
	Border Terrier image = Border Terrier 600.jpg | image_caption = none | name = Border Terrier | country = United Kingdom | fcigroup = 3 | fcisection = 1 | fcinum = 10 | fcistd = akcgroup = Terrier | akcstd = ankcgroup = Group 2 | ankcstd = ckcgroup = Group 4 - Terriers | ckcstd = kcukgroup = Terrier | kcukstd = nzkcgroup = Terrier
	Boredom Boredom is an unpleasant state of mind in which one interprets one's environment as dull, tedious, and lacking stimulation. There is an inherent hopelessness in boredom; people will expend considerable effort to prevent or remedy it, yet in many circumstances it is accepted as an inevitable suffering to be endured.
	Boric acid Boric acid, also called boracic acid or orthoboric acid, is a mild acid often used as an antiseptic, insecticide, flame retardant, in nuclear power plants to control the fission rate of uranium, and as a precursor of other chemical compounds. It exists in the form of colorless crystals or a white powder and dissolves in water.