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• Hydroelectric
  ...l 2006.jpg|thumb|right|280px|The [[Three Gorges Dam]] in China, the [[List of the largest hydroelectric power stations|largest hydro-electric power stati ...approximately 20% of the world's electricity, and accounted for about 88% of electricity from renewable sources.<ref name="REN21-2006">[http://www.ren21
  39 KB (5,447 words) - 23:02, 2 July 2010
• Mercury (element)
  ...of any metal. A heavy, silvery [[d-block]] [[metal]], mercury is also one of the five [[liquid metal|metallic]] chemical elements that are [[liquid]] at ...f mercury (such as [[mercuric chloride]] or [[methylmercury]]), inhalation of mercury vapor, or eating seafood contaminated with mercury.
  69 KB (10,077 words) - 21:35, 20 September 2010
• Sodium chloride
  ....gov/cgi/cbook.cgi?ID=C7647145&Type=THZ-IR-SPEC&Index=1 National Institute of Standards and Technology: Sodium Chloride]</ref> ...sible for the salinity of the [[ocean]] and of the [[extracellular fluid]] of many multicellular [[organism]]s. As the major ingredient in [[edible salt]
  19 KB (2,579 words) - 16:51, 27 September 2010
• Ceramic materials
  ...action=list&grp=C Ceramic Tile and Stone Standards]</ref> [[Clay]] was one of the earliest materials used to produce [[ceramic]]s, but many different cer ==Types of ceramic materials==
  28 KB (3,876 words) - 10:08, 20 September 2010
• Slate
  ...<ref>[http://www.euromines.org/cm_stats_slate.html European Association of Mining Industries website] retrieved on 26/01/2010 </ref> ...slate, or a [[Slate (writing)|writing slate]], traditionally a small piece of slate, often framed in wood, used with chalk as a notepad or noticeboard et
  13 KB (1,933 words) - 10:08, 20 September 2010
• Rock (geology)
  [[Image:Balanced Rock.jpg|right|thumb|''Balanced Rock'' stands in [[Garden of the Gods]] park in [[Colorado Springs, CO]].]] ...logy]], '''rock''' or '''stone''' is a naturally occurring solid aggregate of [[mineral]]s and/or [[mineraloid]]s.
  6 KB (850 words) - 10:09, 20 September 2010
• Bitumen
  ..., sticky, entirely soluble in [[carbon disulfide]], and composed primarily of highly condensed [[polycyclic aromatic hydrocarbon]]s. Naturally occurring or '''crude bitumen''' is a sticky, [[tar]]-like form of [[petroleum]] that is so thick and heavy that it must be heated or diluted
  13 KB (1,945 words) - 10:12, 20 September 2010
• Petroleum
  ...fined and separated, most easily by [[boiling point]], into a large number of consumer products, from [[petrol]] and [[kerosene]] to [[asphalt]] and chem ...aries depending on the subsurface conditions, and on the [[phase diagram]] of the petroleum mixture.<ref name="Hyne 2001">Hyne (2001), pp. 1–4.</ref>
  69 KB (9,885 words) - 10:12, 20 September 2010
• Metal mining in Wales
  ...eas of what are now very rural parts of [[Wales]] and left behind a legacy of contaminated waste heaps and a very few ruined buildings. There are a number of areas that have been mined for a variety of metals.
  4 KB (654 words) - 10:13, 20 September 2010
• Metallurgy
  [[Image:Georg Agricola.jpg|thumb|right|200px|Georg Agricola, author of ''De re metallica'', an important early book on metal extraction]] ...plied to their practical use. Metallurgy is commonly used in the [[craft]] of [[metalworking]].
  14 KB (1,922 words) - 10:13, 20 September 2010
• Ruthenium
  ...l contacts and the production of thick-film resistors. A minor application of ruthenium is its use in some platinum [[alloy]]s. ...ugh broken, while the other, cigar-shaped end is relatively smooth.|A half of a pure, [[Electron beam melting|electron-beam remelted]] ruthenium bar]]
  39 KB (5,430 words) - 10:13, 20 September 2010
• Vermiculite
  ...=Handbook>http://rruff.geo.arizona.edu/doclib/hom/vermiculite.pdf Handbook of Mineralogy</ref><ref name=Webmin>http://webmineral.com/data/Vermiculite.sht ...es. Vermiculite is formed by [[weathering]] or [[hydrothermal]] alteration of [[biotite]] or [[phlogopite]].<ref name=Mindat/> Large commercial vermiculi
  16 KB (2,229 words) - 10:14, 20 September 2010
• Construction aggregate
  ...recycled concrete and geosynthetic aggregates. Aggregates are a component of [[composite material]]s such as [[concrete]] and [[asphalt concrete]]; the ...for specific construction purposes. These products include specific types of coarse and fine aggregate designed for such uses as additives to asphalt an
  14 KB (1,945 words) - 10:15, 20 September 2010
• Kerosene
  | title = The golden flood: an informal history of America's first oil field ...paraffin wax or just [[paraffin]]); the term ''kerosene'' is usual in much of Canada, the United States, Australia (where it is usually referred to collo
  26 KB (3,820 words) - 10:18, 20 September 2010
• Cellulose insulation
  ...nt fiber used in wall and roof cavities to separate the inside and outside of the building thermally and acoustically. <br /> == History of cellulose insulation ==
  21 KB (3,165 words) - 10:20, 20 September 2010
• Magnesium oxide wallboard
  ...and commercial [[building construction]]. It is suitable for a wide range of general building board usages and for applications requiring a [[fire ratin ...[[ceiling]] cover material or sheathing. It is also being used in a number of other construction applications such as: fascias, [[soffit]]s, shaft-liner
  6 KB (896 words) - 10:22, 20 September 2010
• Steel
  ...ss (materials science)|hardness]], [[ductility]], and [[tensile strength]] of the resulting steel. Steel with increased carbon content can be made harder ...which can contain a small amount of carbon, but it is included in the form of [[slag]] [[inclusion (casting)|inclusion]]s. Two distinguishing factors are
  44 KB (6,419 words) - 10:22, 20 September 2010
• Wrought iron
  ...jpg|thumb|The [[Eiffel tower]] is constructed from [[puddle iron]], a form of wrought iron]] ...t|thumb|A wrought iron flower, on the fence in front of the [[Royal Courts of Justice]]]] -->
  35 KB (5,392 words) - 10:22, 20 September 2010
• Concrete
  ...dome]].<ref>[http://www.romanconcrete.com/ The Roman Pantheon: The Triumph of Concrete]</ref>]] ...ern building: [[Boston City Hall]] (completed 1968) is largely constructed of concrete, both pre-cast and poured-in-place.]]
  63 KB (9,167 words) - 10:23, 20 September 2010
• Iron
  ...ition series]]. Like other [[Group 8 element]]s, it exists in a wide range of [[oxidation state]]s. Iron and iron [[alloy]]s ([[steel]]s) are by far the ...the heaviest stable element produced by stellar fusion because the fusion of iron is the last nuclear fusion reaction that is [[exothermic]]. Iron is th
  67 KB (9,808 words) - 10:24, 20 September 2010

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