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acid rain is rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low ph). most water, including drinking water, has a neutral ph that exists between 6.5 and 8.5, but acid rain has a ph level lower than this and ranges from 4–5 on average. the more acid... |
in church history, the term (from ancient greek: , "headless", singular from , "without", and , "head") has been applied to several sects that supposedly had no leader. e. cobham brewer wrote, in dictionary of phrase and fable, that acephalites, "properly means men without a head." jean cooper wrote, in dictionary of c... |
anthony of saxony (; 27 december 1755 – 6 june 1836) was a king of saxony from the house of wettin. he became known as anton der gütige ("anthony the kind"). he was the fifth but third surviving son of frederick christian, elector of saxony and his wife duchess maria antonia of bavaria. early life with few chances to t... |
albert iii () (27 january 144312 september 1500) was a duke of saxony. he was nicknamed albert the bold or albert the courageous and founded the albertine line of the house of wettin. biography albert was born in grimma as the third and youngest son (but fifth child in order of birth) of frederick ii the gentle, electo... |
arlo davy guthrie (born july 10, 1947) is an american folk singer-songwriter. he is known for singing songs of protest against social injustice, and storytelling while performing songs, following the tradition of his father, woody guthrie. guthrie's best-known work is his debut piece, "alice's restaurant massacree", a ... |
the book of alma: the son of alma (), usually referred to as the book of alma, is one of the books that make up the book of mormon. the title refers to alma the younger, a prophet and "chief judge" of the nephites. alma is the longest book in the book of mormon and consists of sixty-three chapters, taking up almost a t... |
antioxidants are compounds that inhibit oxidation (usually occurring as autoxidation), a chemical reaction that can produce free radicals. autoxidation leads to degradation of organic compounds, including living matter. antioxidants are frequently added to industrial products, such as polymers, fuels, and lubricants, t... |
brass is an alloy of copper (cu) and zinc (zn), in proportions which can be varied to achieve different colours and mechanical, electrical, acoustic, and chemical properties, but copper typically has the larger proportion. in use since prehistoric times, it is a substitutional alloy: atoms of the two constituents may r... |
bonn () is a federal city in the german state of north rhine-westphalia, located on the banks of the rhine. it has a population of over 300,000. about south-southeast of cologne, bonn is in the southernmost part of the rhine-ruhr region, germany's largest metropolitan area, with over 11 million inhabitants. it is a uni... |
ballroom dance is a set of partner dances, which are enjoyed both socially and competitively around the world, mostly because of its performance and entertainment aspects. ballroom dancing is also widely enjoyed on stage, film, and television. ballroom dance may refer, at its widest definition, to almost any recreation... |
the birth of a nation, originally called the clansman, is a 1915 american silent epic drama film directed by d. w. griffith and starring lillian gish. the screenplay is adapted from thomas dixon jr.'s 1905 novel and play the clansman. griffith co-wrote the screenplay with frank e. woods and produced the film with harry... |
the baltic sea is an arm of the atlantic ocean that is enclosed by denmark, estonia, finland, germany, latvia, lithuania, poland, russia, sweden, and the north and central european plain. the sea stretches from 53°n to 66°n latitude and from 10°e to 30°e longitude. it is a shelf sea and marginal sea of the atlantic wit... |
brackish water, sometimes termed brack water, is water occurring in a natural environment that has more salinity than freshwater, but not as much as seawater. it may result from mixing seawater (salt water) and fresh water together, as in estuaries, or it may occur in brackish fossil aquifers. the word comes from the m... |
the bronx () is a borough of new york city, coextensive with bronx county, in the u.s. state of new york. it is south of westchester county; north and east of the new york city borough of manhattan, across the harlem river; and north of the new york city borough of queens, across the east river. the bronx has a land ar... |
bearshare was a peer-to-peer-file-sharing-application originally created by free peers, inc. for microsoft windows and also a rebranded version of imesh by musiclab, llc, tightly integrated with their music subscription service. history the principal operators of free peers, inc. were vincent falco and louis tatta. bea... |
belgium, officially the kingdom of belgium, is a country in northwestern europe. the country is bordered by the netherlands to the north, germany to the east, luxembourg to the southeast, france to the southwest, and the north sea to the northwest. it covers an area of and has a population of more than 11.5 million, ma... |
blm most commonly refers to: black lives matter, an international anti-racism movement and organization bureau of land management, a u.s. federal government agency blm may also refer to: organizations blm (law firm), united kingdom and ireland blue lives matter, an american pro-police movement black lives matter global... |
blues is a music genre and musical form that originated in the deep south of the united states around the 1860s. blues incorporated spirituals, work songs, field hollers, shouts, chants, and rhymed simple narrative ballads from the african-american culture. the blues form is ubiquitous in jazz, rhythm and blues, and ro... |
bluegrass or blue grass may refer to: plants bluegrass (grass), several species of grasses of the genus poa kentucky bluegrass (poa pratensis), one well-known species of the genus arts and media bluegrass music, a form of american roots music bluegrass (sirius), a bluegrass music satellite radio channel bluegrass films... |
berlin ( , ) is the capital and largest city of germany by both area and population. its more than 3.85 million inhabitants make it the european union's most populous city, according to population within city limits. one of germany's sixteen constituent states, berlin is surrounded by the state of brandenburg and conti... |
benjamin lee whorf (; april 24, 1897 – july 26, 1941) was an american linguist and fire prevention engineer who is famous for proposing the "sapir–whorf hypothesis." he believed that the structures of different languages shape how their speakers perceive and conceptualize the world. whorf saw this idea, named after him... |
william jefferson clinton (né blythe iii; born august 19, 1946) is an american politician who served as the 42nd president of the united states from 1993 to 2001. a member of the democratic party, he previously served as governor of arkansas from 1979 to 1981 and again from 1983 to 1992. clinton, whose policies reflect... |
in common law legal systems, black-letter law refers to well-established legal rules that are no longer subject to reasonable dispute. for example, it is "black-letter law" that the formation of a contract requires consideration, or that the registration of a trademark requires established use in the course of trade. b... |
blue laws, also known as sunday laws, sunday trade laws and sunday closing laws, are laws restricting or banning certain activities on specified days, usually sundays in the western world. the laws were adopted originally for religious reasons, specifically to promote the observance of the christian day of worship, but... |
bar or bar may refer to: food and drink bar (establishment), selling alcoholic beverages candy bar chocolate bar science and technology bar (river morphology), a deposit of sediment bar (tropical cyclone), a layer of cloud bar (unit), a unit of pressure bar domain, a protein domain bar stock, of metal sandbar computing... |
beer is one of the oldest types of alcoholic drinks in the world, and the most widely consumed. it is the third most popular drink overall after potable water and tea. it is produced by the brewing and fermentation of starches, mainly derived from cereal grains—most commonly malted barley, though wheat, maize (corn), r... |
the bit is the most basic unit of information in computing and digital communications. the name is a portmanteau of binary digit. the bit represents a logical state with one of two possible values. these values are most commonly represented as either , but other representations such as true/false, yes/no, on/off, or +/... |
the byte is a unit of digital information that most commonly consists of eight bits. historically, the byte was the number of bits used to encode a single character of text in a computer and for this reason it is the smallest addressable unit of memory in many computer architectures. to disambiguate arbitrarily sized b... |
boron nitride is a thermally and chemically resistant refractory compound of boron and nitrogen with the chemical formula bn. it exists in various crystalline forms that are isoelectronic to a similarly structured carbon lattice. the hexagonal form corresponding to graphite is the most stable and soft among bn polymorp... |
johann sebastian bach (1685–1750) was a german composer of the baroque period. bach may also refer to: people bach (surname) bach family, a noted family in music bach (actor), stage name of french actor, singer and music hall performer charles-joseph pasquier (1882–1953) sebastian bach (born 1968), stage name of canadi... |
blood on the tracks is the fifteenth studio album by american singer-songwriter bob dylan, released on january 20, 1975, by columbia records. the album marked dylan's return to columbia records after a two-album stint with asylum records. dylan began recording the album in new york city in september 1974. in december, ... |
"love and theft" is the 31st studio album by american singer-songwriter bob dylan, released on september 11, 2001, by columbia records. it featured backing by his touring band of the time, with keyboardist augie meyers added for the sessions. it peaked at no. 5 on the billboard 200, and has been certified gold by the r... |
the beverly hillbillies is an american television sitcom that was broadcast on cbs from 1962 to 1971. it had an ensemble cast featuring buddy ebsen, irene ryan, donna douglas, and max baer jr. as the clampetts, a poor, backwoods family from silver dollar city in the ozark mountains of missouri, who move to posh beverly... |
beryllium is a chemical element with the symbol be and atomic number 4. it is a steel-gray, strong, lightweight and brittle alkaline earth metal. it is a divalent element that occurs naturally only in combination with other elements to form minerals. gemstones high in beryllium include beryl (aquamarine, emerald, red b... |
britney jean spears (born december 2, 1981) is an american singer. often referred to as the "princess of pop", she is credited with influencing the revival of teen pop during the late 1990s and early 2000s. spears has sold over 150 million records worldwide, including over 70 million in the united states, making her on... |
brazil (; ), officially the federative republic of brazil (portuguese: ), is the largest country in south america and in latin america. brazil is the world's fifth-largest country by area and the seventh most populous. its capital is brasília, and its most populous city is são paulo. the federation is composed of the u... |
the black forest ( ) is a large forested mountain range in the state of baden-württemberg in southwest germany, bounded by the rhine valley to the west and south and close to the borders with france and switzerland. it is the source of the danube and neckar rivers. its highest peak is the feldberg with an elevation of ... |
the black sea is a marginal mediterranean sea lying between europe and asia, east of the balkans, south of the east european plain, west of the caucasus, and north of anatolia. it is bounded by bulgaria, georgia, romania, russia, turkey, and ukraine. the black sea is supplied by major rivers, principally the danube, dn... |
the bible (from koine greek , , 'the books') is a collection of religious texts or scriptures, some, all, or a variant of which, are held to be sacred in christianity, judaism, samaritanism, islam, baha'i'ism and many other religions. the bible is an anthology, a compilation of texts of a variety of forms, originally w... |
british columbia (commonly abbreviated as bc) is the westernmost province of canada. situated between the pacific ocean and the rocky mountains, the province has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, forests, lakes, mountains, inland deserts and grassy plains. british... |
siddhartha gautama, most commonly referred to as the buddha ('the awakened'), was a wandering ascetic and religious teacher who lived in south asia during the 6th or 5th century bce and founded buddhism. according to buddhist tradition, he was born in lumbini, in what is now nepal, to royal parents of the shakya clan, ... |
a bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or railway) without blocking the way underneath. it is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. there are many diffe... |
beadwork is the art or craft of attaching beads to one another by stringing them onto a thread or thin wire with a sewing or beading needle or sewing them to cloth. beads are produced in a diverse range of materials, shapes, and sizes, and vary by the kind of art produced. most often, beadwork is a form of personal ado... |
board games are tabletop games that typically use . these pieces are moved or placed on a pre-marked board (playing surface) and often include elements of table, card, role-playing, and miniatures games as well. many board games feature a competition between two or more players. to show a few examples: in checkers (bri... |
a bead is a small, decorative object that is formed in a variety of shapes and sizes of a material such as stone, bone, shell, glass, plastic, wood, or pearl and with a small hole for threading or stringing. beads range in size from under to over in diameter. beads represent some of the earliest forms of jewellery, wit... |
bead weaving (or beadweaving) is a set of techniques for weaving sheets and objects of seed beads. threads are strung through and/or around the beads to hold them together. it can be done either on a loom or using one of a number of off-loom stitches. on-loom beadweaving when weaving on a loom, the beads are strung on ... |
branchiopoda is a class of crustaceans. it comprises fairy shrimp, clam shrimp, diplostraca (or cladocera), notostraca and the devonian lepidocaris. they are mostly small, freshwater animals that feed on plankton and detritus. description members of the branchiopoda are unified by the presence of gills on many of the a... |
baruch (de) spinoza (24 november 1632 – 21 february 1677) was a philosopher of portuguese-jewish origin, born in amsterdam, the dutch republic, and mostly known under his latinized pen name benedictus de spinoza. one of the foremost and seminal thinkers of the enlightenment, modern biblical criticism, and 17th-century ... |
birds are a group of warm-blooded vertebrates constituting the class aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. birds live worldwide and range in size from the bee hummingbird to the co... |
...baby one more time is the debut studio album by american singer britney spears. it was released on january 12, 1999, by jive records. spears had been a child performer on the all-new mickey mouse club from 1993 to 1994, and was looking to expand her career as a teen singer. after being turned away by several record ... |
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