CZ:Featured article

Featured Article is an award given weekly to a high-quality Citizendium article.

Chunbum Park is the current Featured Articles maintainer.

Note on editing Featured Articles (8 August 2011)

You are encouraged to fix any errors you find in our Featured Articles. Do note however, that changes made to the current Feature at CZ:Featured article/Current do not automatically apply to the main article. The /Current page is blanked once a week to make room for the next Feature. For your contribution to be permanent, you need to make the change in the main article as well, i.e. the topmost link in the list below. Thank you. Johan Förberg

Formal policy

EC Decision D-2011-014, 28 February 2011:

The welcome page of the Citizendium shall display one or two featured articles.

If no other system of choosing and displaying articles is employed, then at least one article shall be chosen from our Approved articles on a rotating basis and shall thereafter be changed at least once a week.

Remark: This replaces the "Article of the Week" and the "New Draft of the Week" for the time being, or until another feature is installed.

Archive

List of previously featured articles.

Before May 4, 2011, there were two distinct categories of featured articles, which are archived separately.

Featured articles

•  Ideal gas law [r]: Relates pressure, volume and temperature for hypothetical gases of atoms or molecules with negligible intermolecular forces. ^[e] (January 14 — January 20, 2012)
•  Volatility (chemistry) [r]: A term used to characterize the tendency of a substance to vaporize. ^[e] (January 6 — January 14, 2012)
•  Alcmaeon of Croton [r]: A Greek natural philosopher, living c. 500 BCE, interested in particular in medicine and physiology, credited by scholars as the first person to recognize the brain as the seat of intelligence and mind, whose ideas about the causes of disease prompted or anticipated those of Hippocrates. ^[e] (December 31, 2011 — January 6, 2012)
•  Thomas Jefferson [r]: (1743-1826) Third U.S. President (from 1801 to 1809), first U.S. Secretary of State (from 1789 to 1793), author of the U.S. Declaration of Independence, and founder of the University of Virginia. ^[e] (December 23 — December 31, 2011)
•  Linguistics [r]: The scientific study of language. ^[e] (December 17 — December 23, 2011)
•  Kilt [r]: A knee-length, skirtlike, traditional Scottish garment, usually worn by men as part of Highland attire. ^[e] (December 9 — December 17, 2011)
•  Warfarin [r]: Rat poison also used as anticoagulant medication to prevent embolism and thrombosis ^[e] (December 2 — December 9, 2011)
•  Global warming [r]: The increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation. ^[e] (November 26 — December 2, 2011)
•  Reuben sandwich [r]: Part of American food folklore, a dish made from rye bread, sauerkraut, Swiss cheese and corned beef, although pastrami can be used instead of corned beef. ^[e] (November 19 — November 26, 2011)
•  British and American English [r]: A comparison between these two language variants in terms of vocabulary, spelling and pronunciation. ^[e] (November 12 — November 19, 2011)
•  Plymouth Colony [r]: English colony in North America, 1620-1691, until it was absorbed by Massachusetts. ^[e] (November 4 — November 12, 2011)
•  Arab Spring [r]: Protest movements in the Arab world that seek the removal of oppressive governments. ^[e] (October 28 — November 4, 2011)
•  C (letter) [r]: The third letter of the English and Latin alphabets. ^[e] (October 22 — October 28, 2011)
•  Fertility (demography) [r]: The demographic analysis of having babies. ^[e] (October 14 — October 22, 2011)
•  Geometric series [r]: A series associated with a geometric sequence, i.e., consecutive terms have a constant ratio. ^[e] (October 8 — October 14, 2011)
•  Eurozone crisis [r]: A financial crisis involving member countries of the Eurozone ^[e] (October 1 — October 8, 2011)
•  Destroyer [r]: Add brief definition or description (September 26 — October 1, 2011)
• Cypherpunk [r]: Add brief definition or description (September 17 — September 26, 2011)
•  Dirac delta function [r]: Sharply peaked function, generalization of the Kronecker delta; a distribution that maps a regular function onto a single function value. ^[e] (September 10 — September 17, 2011)
• Lockheed SR-71 [r]: Add brief definition or description (September 2 — September 10, 2011)
•  Clostridium difficile [r]: A bacteria species causing infectious diarhhea and pseudomembranous colitis. ^[e] (August 25 — September 2, 2011)
•  Great Recession [r]: The disruption of economic activity that began with a downturn in 2007 and generated international repercussions that continued through 2012 and into 2013. ^[e] (August 19 — August 25, 2011)
•  Alice Bailey [r]: Author of spiritual, occult, esoteric and religious themes; early popularizer of terms New Age and Age of Aquarius. ^[e] (August 13 — August 19, 2011)
•  Félix d'Hérelle [r]: (1873 – 1949) - A French-Canadian bacteriologist, and the discoverer of bacteriophages. ^[e] (August 7 — August 13, 2011)
•  Miller effect [r]: The increase in the equivalent input capacitance of an inverting voltage amplifier due to a capacitance connected between two gain-related nodes. ^[e] (July 29 — August 7, 2011)
•  Gut-brain signalling [r]: The interaction between the gastrointestinal tract and the brain. ^[e] (July 23 — 29, 2011)
•  Neanderthal [r]: Extinct member of the Homo genus that is known from Pleistocene specimens found in Europe and parts of western and central Asia. ^[e] (July 13 — 23, 2011)
•  Tennis [r]: A sport played on a hard-surfaced rectangular court, between either two players or two teams of two players each, in which the players attempt to strike a hollow rubber ball, using a stringed raquet, over a net into the opponent's half of the court. ^[e] (July 2 — 13, 2011)
•  Apollo program [r]: A human spaceflight program undertaken by NASA during the years 1961–1975 with the goal of conducting manned moon landing missions. ^[e] (June 26 — July 2, 2011)
•  Semiconductor diode [r]: Two-terminal device that conducts current in only one direction, made of two or more layers of material, of which at least one is a semiconductor. ^[e] (June 17 — 26, 2011)
•  Miller effect [r]: The increase in the equivalent input capacitance of an inverting voltage amplifier due to a capacitance connected between two gain-related nodes. ^[e] (June 11 — 17, 2011)
•  Specific heat ratio [r]: The ratio of the specific heat of a gas at constant pressure, $C_{p}$, to the specific heat at constant volume, $C_{v}$, also sometimes called the adiabatic index or the heat capacity ratio or the isentropic expansion factor. ^[e] (June 3 — 11 2011)
•  Macromolecular chemistry [r]: Add brief definition or description (May 27 — June 3, 2011)
•  Tecum Umam [r]: Add brief definition or description (May 21 — 27, 2011)
•  Heterotaxis [r]: Add brief definition or description (May 4 — 21, 2011)

Articles of the Week (before May 4, 2011)

•  Space (mathematics) [r]: Add brief definition or description
•  World of Warcraft [r]: Add brief definition or description
•  Social capital [r]: Add brief definition or description
•  Richard Condon [r]: Add brief definition or description
•  Natural gas [r]: Add brief definition or description
•  Stairway to Heaven [r]: Add brief definition or description
•  Cryptography [r]: Add brief definition or description
•  English spellings [r]: Add brief definition or description
•  Folk saint [r]: Add brief definition or description
•  Led Zeppelin [r]: Add brief definition or description
•  Locality of reference [r]: Add brief definition or description
•  Rabbit [r]: Add brief definition or description
•  Scarborough Castle [r]: Add brief definition or description (September 3)
• The Clash of Civilizations and the Remaking of World Order [r]: Add brief definition or description (August 27)
•  Mauna Kea [r]: Add brief definition or description (August 20)
•  Brute force attack [r]: Add brief definition or description (August 13)
•  Cruiser [r]: Add brief definition or description (August 5)
•  The Canterbury Tales [r]: Add brief definition or description (July 30)
•  Milpa agriculture [r]: Add brief definition or description (July 23)
•  Domain Name System [r]: Add brief definition or description (July 16)
•  Scuticaria [r]: Add brief definition or description (July 9)
• Torture [r]: Add brief definition or description (July 2)
•  Miltonia [r]: Add brief definition or description (June 25)
•  Ancient Celtic music [r]: Add brief definition or description (June 18)
•  Bifrenaria [r]: Add brief definition or description (June 11)
•  Halobacterium NRC-1 [r]: Add brief definition or description (June 4)
•  Animal [r]: Add brief definition or description (May 28)
•  Coal [r]: Add brief definition or description (May 21)
•  Johannes Diderik van der Waals [r]: Add brief definition or description (May 7)
•  Scientific method [r]: Add brief definition or description (Apr 14)
•  Korematsu v. United States [r]: Add brief definition or description (Apr 7)
•  Orchid [r]: Add brief definition or description (Mar 31)
•  Oliver Cromwell [r]: Add brief definition or description (Mar 24)
•  Wisconsin v. Yoder [r]: Add brief definition or description (Mar 17)
•  Conventional coal-fired power plant [r]: Add brief definition or description (Mar 10)
•  Battle of the Ia Drang [r]: Add brief definition or description (Mar 3)
•  Ether (physics) [r]: Add brief definition or description (Feb 24)
•  Large-scale trickle filters [r]: Add brief definition or description (11 Feb)
•  Homeopathy [r]: Add brief definition or description (28 Jan)
•  Microeconomics [r]: Add brief definition or description (14 Jan)
•  Speech Recognition [r]: Add brief definition or description (26 Nov)
•  Mashup [r]: Add brief definition or description (19 Nov)
•  Tux [r]: Add brief definition or description (14 Oct)
•  Hydrogen bond [r]: Add brief definition or description (7 Oct)
•  Lead [r]: Add brief definition or description (1 Sept)
•  DNA [r]: Add brief definition or description (8 July)
•  Augustin-Louis_Cauchy [r]: Add brief definition or description (1 July)
•  Vasco da Gama [r]: Add brief definition or description (24 June)
•  Phosphorus [r]: Add brief definition or description (17 June)
•  Crystal Palace [r]: Add brief definition or description (10 June)
•  Gross Domestic Product [r]: Add brief definition or description (3 June)
•  RNA interference [r]: Add brief definition or description (27 May)
•  Latino history [r]: Add brief definition or description (20 May)
•  Navy Grog [r]: Add brief definition or description (13 May)
•  Systems biology [r]: Add brief definition or description (6 May)
•  Steroid [r]: Add brief definition or description (22 Apr)
•  Lebanon [r]: Add brief definition or description (15 Apr)
•  Wheat [r]: Add brief definition or description (7 Apr)
•  Benjamin Franklin [r]: Add brief definition or description (1 Apr)
•  Coherer [r]: Add brief definition or description (25 Mar)
•  U.S. Civil War [r]: Add brief definition or description (18 Mar)
•  Life [r]: Add brief definition or description (11 Mar)
•  Petroleum refining processes [r]: Add brief definition or description (4 Mar)
•  Shirley Chisholm [r]: Add brief definition or description (20 Feb)
•  Telephone Newspaper [r]: Add brief definition or description (4 Feb)
•  Wristwatch [r]: Add brief definition or description (28 Jan)
•  Korean War of 1592-1598 [r]: Add brief definition or description (21 Jan)
•  Andrew Carnegie [r]: Add brief definition or description (11 January 2008)
• Bowling [r]: Add brief definition or description (31 December 2007)
•  Architecture [r]: Add brief definition or description (December 6)
•  Civil society [r]: Add brief definition or description November 29
•  Joan of Arc [r]: Add brief definition or description (November 22)
•  Chemistry [r]: Add brief definition or description (November 15)
•  Albert Gallatin [r]: Add brief definition or description (November 8)
•  Prime number [r]: Add brief definition or description (November 1)
•  Tennis [r]: A sport played on a hard-surfaced rectangular court, between either two players or two teams of two players each, in which the players attempt to strike a hollow rubber ball, using a stringed raquet, over a net into the opponent's half of the court. ^[e] (October 25)
•  Rottweiler [r]: Add brief definition or description (October 18)
•  Theodor Lohmann [r]: Add brief definition or description (October 9)
•  William Shakespeare [r]: Add brief definition or description (October 2)
•  Edward I [r]: Add brief definition or description (September 25)
•  El Tío [r]: Add brief definition or description (September 18)
•  Scotland Yard [r]: Add brief definition or description (September 11)
•  Kilt [r]: A knee-length, skirtlike, traditional Scottish garment, usually worn by men as part of Highland attire. ^[e] (September 4)
•  U.S. Electoral College [r]: Add brief definition or description (August 28)
•  Butler [r]: Add brief definition or description (August 21)
•  Tony Blair [r]: Add brief definition or description (August 14)
•  Northwest Passage [r]: Add brief definition or description (August 7)
•  Literature [r]: Add brief definition or description (July 31)
•  Biology [r]: Add brief definition or description (July 25)

New Drafts of the Week (before May 4, 2011)

•  Multi-touch interface [r]: Add brief definition or description
•  NoSQL [r]: Add brief definition or description
•  Debt [r]: Add brief definition or description
•  Ellesmere Chaucer manuscript [r]: Add brief definition or description
•  Ellipse [r]: Add brief definition or description
•  Aeneid [r]: Add brief definition or description
•  Tall tale [r]: Add brief definition or description
•  Plane (geometry) [r]: Add brief definition or description
•  Steam [r]: Add brief definition or description
•  Wasan [r]: Add brief definition or description
•  Racism in Australia [r]: Add brief definition or description
• Think tank [r]: Add brief definition or description
•  Les Paul [r]: Add brief definition or description
•  Zionism [r]: Add brief definition or description (September 3)
•  Earth's atmosphere [r]: Add brief definition or description (August 27)
•  Joshua Lawrence Chamberlain [r]: Add brief definition or description (August 20)
•  The Sporting Life (album) [r]: Add brief definition or description (August 13}
•  The Rolling Stones [r]: Add brief definition or description (August 5)
•  Euler angles [r]: Add brief definition or description (July 30)
•  Chester Nimitz [r]: Add brief definition or description (July 23)
•  Heat [r]: Add brief definition or description (July 16)
•  Continuum hypothesis [r]: Add brief definition or description (July 9)
•  Hawaiian alphabet [r]: Add brief definition or description (July 2)
•  Now and Zen [r]: Add brief definition or description (June 25)
•  Wrench (tool) [r]: Add brief definition or description (June 18)
•  Air preheater [r]: Add brief definition or description (June 11)
•  2009 H1N1 influenza virus [r]: Add brief definition or description (June 4)
•  Gasoline [r]: Add brief definition or description (21 May)
•  John Brock [r]: Add brief definition or description (8 May)
•  McGuffey Readers [r]: Add brief definition or description (14 Apr)
•  Vector rotation [r]: Add brief definition or description (7 Apr)
•  Leptin [r]: Add brief definition or description (31 Mar)
•  Kansas v. Crane [r]: Add brief definition or description (24 Mar)
•  Punch card [r]: Add brief definition or description (17 Mar)
•  Jass–Belote card games [r]: Add brief definition or description (10 Mar)
•  Leptotes (orchid) [r]: Add brief definition or description (3 Mar)
•  Worm (computers) [r]: Add brief definition or description (24 Feb)
•  Joseph Black [r]: Add brief definition or description (11 Feb 2009)
•  Sympathetic magic [r]: Add brief definition or description (17 Jan 2009)
•  Dien Bien Phu [r]: Add brief definition or description (25 Dec)
• Blade Runner [r]: Add brief definition or description (25 Nov)
•  Piquet [r]: Add brief definition or description (18 Nov)
•  Crash of 2008 [r]: Add brief definition or description (23 Oct)
• Information Management [r]: Add brief definition or description (31 Aug)
•  Battle of Gettysburg [r]: Add brief definition or description (8 July)
•  Drugs banned from the Olympics [r]: Add brief definition or description (1 July)
•  Sea glass [r]: Add brief definition or description (24 June)
•  Dazed and Confused (Led Zeppelin song) [r]: Add brief definition or description (17 June)
•  Hirohito [r]: Add brief definition or description (10 June)
•  Henry Kissinger [r]: Add brief definition or description (3 June)
• Palatalization [r]: Add brief definition or description (27 May)
•  Intelligence on the Korean War [r]: Add brief definition or description (20 May)
•  Trinity United Church of Christ, Chicago [r]: Add brief definition or description (13 May)
•  BIOS [r]: Add brief definition or description (6 May)
•  Miniature Fox Terrier [r]: Add brief definition or description (23 April)
•  Joseph II [r]: Add brief definition or description (15 Apr)
•  British and American English [r]: A comparison between these two language variants in terms of vocabulary, spelling and pronunciation. ^[e] (7 Apr)
•  Count Rumford [r]: Add brief definition or description (1 April)
•  Whale meat [r]: Add brief definition or description (25 March)
•  Naval guns [r]: Add brief definition or description (18 March)
•  Sri Lanka [r]: Add brief definition or description (11 March)
•  Led Zeppelin [r]: Add brief definition or description (4 March)
•  Martin Luther [r]: Add brief definition or description (20 February)
•  Cosmology [r]: Add brief definition or description (4 February)
•  Ernest Rutherford [r]: Add brief definition or description(28 January)
•  Edinburgh [r]: Add brief definition or description (21 January)
•  Russian Revolution of 1905 [r]: Add brief definition or description (8 January 2008)
•  Phosphorus [r]: Add brief definition or description (31 December)
•  John Tyler [r]: Add brief definition or description (6 December)
•  Banana [r]: Add brief definition or description (22 November)
•  Augustin-Louis Cauchy [r]: Add brief definition or description (15 November)
• B-17 Flying Fortress (bomber) [r]: Add brief definition or description - 8 November 2007
•  Red Sea Urchin [r]: Add brief definition or description - 1 November 2007
•  Symphony [r]: Add brief definition or description - 25 October 2007
•  Oxygen [r]: Add brief definition or description - 18 October 2007
•  Origins and architecture of the Taj Mahal [r]: Add brief definition or description - 11 October 2007
•  Fossilization (palaeontology) [r]: Add brief definition or description - 4 October 2007
•  Cradle of Humankind [r]: Add brief definition or description - 27 September 2007
•  John Adams [r]: Add brief definition or description - 20 September 2007
•  Quakers [r]: Add brief definition or description - 13 September 2007
•  Scarborough Castle [r]: Add brief definition or description - 6 September 2007
•  Jane Addams [r]: Add brief definition or description - 30 August 2007
•  Epidemiology [r]: Add brief definition or description - 23 August 2007
•  Gay community [r]: Add brief definition or description - 16 August 2007
•  Edward I [r]: Add brief definition or description - 9 August 2007