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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

Surely this should be made clear in other places than here? I continued editing one of the featured articles (Robert Burns) while it was still there, and I must have done it in the right way because the changes, as far as I can recall them, are still there. But it happened purely by chance. --Martin Wyatt 21:42, 15 February 2013 (UTC)

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.


List of previously featured articles.

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

Featured articles

  • Developed Article 2012 doomsday prophecy [r]: The year that Mayan calendars predicted to be the end of the world. Has become a meme associated with apocalyptic events fueled by booksellers, fearmongers and moviemakers. [e] (April 2 — 12, 2014)
  • Developing Article Mind-body problem [r]: The philosophical and scientific consideration of the relation between conscious mental activity and the underlying physical plant that supports this activity, consisting primarily of the brain, but also involving various sensors throughout the body. [e] (March 15 — April 2, 2014)
  • Developing Article Moral responsibility [r]: A duty or obligation to behave in a 'good' manner and refrain from behaving in a 'bad' manner. [e] (March 5 — 15, 2014)
  • Approved Article Oxytocin [r]: A mammalian hormone that is secreted into the bloodstream from the posterior pituitary gland, and which is also released into the brain where it has effects on social behaviors. [e] (February 16 — March 5, 2014)
  • Approved Article Thylakoid [r]: A membrane inside plastids that is embedded with proteins and pigments required for the capture of photons, a process that is required to drive photosynthesis. [e] (February 2 — 16, 2014)
  • Developed Article Hamburger [r]: A sandwich made with a bun containing a patty of ground, cooked meat that is almost always beef, usually served with condiments such as relish, mustard, or ketchup. [e] (January 18 — February 2, 2014)
  • Developed Article Jimmy Page [r]: (b. 9 January 1944) English session guitarist and founder of influential group Led Zeppelin, known for his production techniques and blues influenced lead guitar soloing. [e] (January 6 — 18, 2014)
  • Developing Article Standard argument against free will [r]: An argument proposing a conflict between the possibility of free will and the postulates of determinism and indeterminism. [e] (December 21, 2013 — January 6, 2014)
  • Approved Article Vacuum distillation [r]: The laboratory or industrial-scale distillation of liquids performed at a pressure lower than atmospheric pressure. [e] (December 7 — 21, 2013)
  • Approved Article Evidence-based medicine [r]: The conscientious, explicit and judicious use of current best evidence in making decisions about the care of individual patients. [e] (December 1 — 7, 2013)
  • Approved Article Partial pressure [r]: The pressure which each gas in a gas mixture would have if it alone occupied the same volume at the same temperature. [e] (November 21 — December 1, 2013)
  • Developing Article Subjective-objective dichotomy [r]: The philosophical separation of the world into objects (entities) which are perceived or otherwise presumed to exist as entities, by subjects (observers). [e] (November 8 — 21, 2013)
  • Developing Article Ukiyo-e [r]: A form of Japanese woodblock art of increasing technical complexity, originating in the Edo Period (1600-1868), with variants into the present [e] (October 27 — November 8, 2013)
  • Developed Article Keynesians [r]: Economists who have developed the theory originated by John Maynard Keynes that advocated the use of fiscal policy to maintain economic stability. [e] (October 14 — 27, 2013)
  • Developing Article Iraq War, major combat phase [r]: That part of the Iraq War involving the initial invasion by large-scale ground forces [e] (September 30 — October 14, 2013)
  • Developed Article Malthusianism [r]: A theory in demography which holds that population expands faster than food supplies and famine will result unless steps are taken to reduce population growth. [e] (September 21 — September 30, 2013)
  • Developed Article Japanese English [r]: English as used by native speakers of Japanese, either for communicating with non-Japanese speakers or commercial and entertainment purposes. Includes vocabulary and usages not found in the native English-speaking world. [e] (September 8 — September 21, 2013)
  • Developed Article Super C [r]: A premium, high-speed intermodal freight train operated by the Atchison, Topeka and Santa Fe Railway from 1968 to 1976. [e] (August 31 — September 8, 2013)
  • Developing Article Ontological pluralism [r]: The doctrine that there are different ways or modes of being [e] (August 24 — 31, 2013)
  • Developed Article Refrigerator car [r]: A piece of railroad rolling stock outfitted with cooling apparatus and designed to carry perishable freight at specific temperatures. [e] (August 17 — 24, 2013)
  • Developed Article San Diegan [r]: One of the named passenger trains of the Atchison, Topeka and Santa Fe Railway that operated between March 27, 1938 and April 30, 1971. [e] (August 10 — 17, 2013)
  • Stub William Morris [r]: William Morris (1834-1896) was a writer, a businessman, a pioneer of the Arts and Crafts movement, and an early socialist. [e] (August 4 — 10, 2013)
  • Approved Article Active attack [r]: An attack on a communications system in which the attacker creates, alters, replaces, re-routes or blocks messages; this contrasts with a passive attack in which he only reads them. [e] (July 27 — August 4, 2013)
  • Approved Article Acid rain [r]: Deposition of acidified rain, snow, sleet, hail, gases and particles, and acidified fog and cloud water, due to nitric or sulfuric acid pollution. [e] (July 20 — 27, 2013)
  • Approved Article Accidental release source terms [r]: The mathematical equations that estimate the rate at which accidental releases of air pollutants into the atmosphere may occur at industrial facilities. [e] (July 14 — 20, 2013)
  • Developing Article Mission San Diego de Alcalá [r]: A former religious outpost established in 1769 on the west coast of North America in the present-day State of California by Roman Catholics of the Franciscan Order under the direction of the Spanish crown. [e] (July 6 — 14, 2013)
  • Developing Article Internal-external distinction [r]: A division of an ontology into an internal linguistic framework and external practical questions about the utility of that framework [e] (June 29 — July 6, 2013)
  • External Article Paula Deen [r]: Biography of American author, chef and television personality Paula Deen. [e] (June 22 — 29, 2013)
  • Developed Article Battleship [r]: A heavily-armored, warship optimized for fighting other warships using large-caliber guns; certain armor requirements differentiated from cruisers; obsolete by end of World War II. [e] (June 15 — 22, 2013)
  • Developed Article Tauriel [r]: Fictional character from Peter Jackson's feature film adaptation of J.R.R. Tolkien's The Hobbit. [e] (June 8 — 15, 2013)
  • Developed Article Mission Buenaventura-class oiler [r]: A series of twenty-seven of fleet oilers built during World War II for service in the United States Navy. [e] (June 1 — 8, 2013)
  • Developed Article Mission San Juan Capistrano [r]: A former religious outpost established in 1776 on the west coast of North America in the present-day State of California by Roman Catholics of the Franciscan Order under the direction of the Spanish crown. [e] (May 25 — June 1, 2013)
  • Developed Article Amber Neben [r]: (1975 - ) An American cycle racer who has won several major international stage races and is a member of the 2008 U.S. Olympic road cycling team. [e] (May 18 — 25, 2013)
  • Developing Article Gay community [r]: A socially constructed collective reference to those people in society who are homosexual, and who interact to some degree with other homosexual people. [e] (May 11 — 18, 2013)
  • Approved Article Edward I [r]: (1272-1307) English king who conquered Wales and attempted to conquer Scotland. [e] (May 4 — 11, 2013)
  • Developed Article Special reconnaissance [r]: Also known as SR, missions deep in denied areas, conducted by special operations personnel. They may be in or out of uniform. While SR units may direct air, missile, or artillery strikes, they strive to stay undetected. [e] (April 27 — May 4, 2013)
  • Developed Article The Miernik Dossier [r]: The first of seven novels by Charles McCarry about the American intelligence agent Paul Christopher, it is set in 1959 Europe and Africa. [e] (April 21 — 27, 2013)
  • Developing Article Margaret Thatcher [r]: The first woman Prime Minister of the United Kingdom, famous for her free market views and for successfully waging the Falklands War, frequently called the "Iron Lady". [e] (April 13 — 21, 2013)
  • Developed Article Hypertension [r]: A multisystem disease whose hallmark is the elevation of blood pressure. [e] (April 6 — 13, 2013)
  • Developing Article Osteoporosis [r]: Reduction of bone mass without alteration in the composition of bone, leading to fractures. [e] (March 30 — April 6, 2013)
  • Developing Article Four color theorem [r]: (A famous mathematical statement with a long history) For every planar graph, four colors suffice to color its vertices in such a way that adjacent vertices have different colors. [e] (March 24 — 30, 2013)
  • Developing Article Papacy [r]: Head of the Roman Catholic Church. [e] (March 16 — 24, 2013)
  • Developed Article Vietnam War [r]: A post-colonial independence/Cold War conflict between communist North Vietnam against South Vietnam, assisted by the United States (1955-1975), to unify Vietnam; won by North Vietnam in 1975. [e] (March 9 — 16, 2013)
  • Developed Article Macroeconomics [r]: The study of the behaviour of the principal economic aggregates, treating the national economy as an open system. [e] (March 2 — 9, 2013)
  • Developed Article Malthusianism [r]: A theory in demography which holds that population expands faster than food supplies and famine will result unless steps are taken to reduce population growth. [e] (February 23 — March 2, 2013)
  • Developed Article Buddhist councils [r]: Add brief definition or description (February 16 — 23, 2013)
  • Developing Article Synapsid [r]: Class of animals that includes early mammals and everything similar to mammals, than to other living amniotes, classically described as mammal-like reptiles [e] (February 10 — 16, 2013)
  • Developed Article Cowdray House [r]: A 16th-century Tudor mansion badly damaged by fire in 1793. The ruins have been open to the public since the early 20th century. [e] (February 3 — 10, 2013)
  • Developing Article Mission San Gabriel Arcángel [r]: A former religious outpost established in 1771 on the west coast of North America in the present-day State of California by Roman Catholics of the Franciscan Order under the direction of the Spanish crown. [e] (January 29 — February 3, 2013)
  • Developing Article Mission San José [r]: A former religious outpost established in 1797 on the west coast of North America in the present-day State of California by Roman Catholics of the Franciscan Order under the direction of the Spanish crown. [e] (January 19 — 29, 2013)
  • Developing Article Hypercholesterolemia [r]: Presence of an abnormally large amount of cholesterol in the cells and plasma of the circulating blood. [e] (January 8 — 19, 2013)
  • Developing Article Diabetic neuropathy [r]: Negative effects on the nervous system that can be caused by diabetes mellitus, some of which may necessitate amputation. [e] (December 30, 2012 — January 8, 2013)
  • Developed Article Railroads in California [r]: A brief history of the network of interconnected independent rail transport systems located throughout the Union's thirty-first state and how they shaped the region's development. [e] (December 22 — 30, 2012)
  • Developed Article Robert Burns [r]: The National poet of Scotland (1759-96); writer of Auld Lang Syne. [e] (December 15 — 22, 2012)
  • Developed Article Wonders of the world [r]: Lists of especially remarkable artificial or natural structures of worldwide importance [e] (December 8 — 15, 2012)
  • Developing Article Silent letters in English [r]: English letter or letters within a particular word, which are not heard in the pronunciation of the word, but appear in the spelling—and the opposite. [e] (December 1 — 8, 2012)
  • Developing Article Fiscal policy [r]: Policy concerning public expenditure, taxation and borrowing and the provision of public goods and services, and their effects upon social conduct, the distribution of wealth and the level of economic activity. [e] (November 24 — December 1, 2012)
  • Developed Article Liquefied natural gas [r]: Natural gas (predominantly methane, CH4) that has been converted into liquid form for ease of transport and storage. [e] (November 17 — 24, 2012)
  • Developed Article Industrial cooling tower [r]: Heat rejection systems used primarily to provide circulating cooling water in large industrial facilities. [e] (November 10 — 17, 2012)
  • Approved Article Steam generator [r]: A device that uses a heat source to boil liquid water and convert it into its vapor phase, referred to as steam. [e] (November 6 — 10, 2012)
  • Developed Article Fenske equation [r]: An equation for calculating the minimum number of theoretical plates needed to separate a binary feed stream by a fractionation column operated at total reflux (i.e., meaning that no overhead product is being withdrawn from the column). [e] (October 28 — November 6, 2012)
  • Approval button.png Developed Article Pompeii [r]: A Roman city buried by a volcanic eruption A.D. 79. The city is now an important archaeological site. [e] (October 20 — 28, 2012)
  • Developing Article Potassium in nutrition and human health [r]: Role of dietary potassium and its associated bicarbonate-generating organic ions in human physiology and in preventive and therapeutic medicine. [e] (October 13 — 20, 2012)
  • Developing Article Pulmonary embolism [r]: Blocking of the pulmonary artery or one of its branches by an embolus. [e] (October 6 — 13, 2012)
  • Developed Article Spanish missions in California [r]: A series of twenty-one religious outposts and associated support facilities established by Spaniards of the Franciscan Order between 1769 and 1823, in order to spread the Catholic faith among the local Native American populations. [e] (September 30 — October 6, 2012)
  • Approved Article Set theory [r]: Mathematical theory that models collections of (mathematical) objects and studies their properties. [e] (September 24 — 30, 2012)
  • Developing Article Human rights [r]: Natural civil and political rights considered universal and applicable to all human beings worldwide. [e] (September 15 — 24, 2012)
  • Developing Article Acute coronary syndrome‎ [r]: Set of signs and symptoms related to the heart, due to myocardial ischemia. [e] (September 7 — 15, 2012)
  • Developing Article Emergence (biology) [r]: The exhibition of novel collective phenomena in living systems stemming from a complex organization of their many constituent parts. [e] (August 31 — September 7, 2012)
  • Developed Article Food reward [r]: The brain mechanisms involved in reinforcing feeding behaviour. [e] (August 24 — 31, 2012)
  • Approved Article NMR spectroscopy [r]: The use of electromagnetic radiation, in the presence of a magnetic field, to obtain information regarding transitions between different nuclear spin states of the nuclei present in the sample of interest. [e] (August 16 — 24, 2012)
  • Approved Article Dokdo [r]: A group of volcanic islets in the Sea of Japan, occupied by South Korea and claimed by Japan. The ecology consists of a moderate maritime climate with a diverse marine life, a large presence of birds, and some vegetation. [e] (August 10 — 16, 2012)
  • Developing Article Digital rights management [r]: Legal and technical techniques used by media publishers in an attempt to control distribution and usage of distributed video, audio, ebooks, and similar electronic media. [e] (August 3 — 10, 2012)
  • Approved Article Geometric sequence [r]: In elementary mathematics, a (finite or infinite) sequence of numbers such that the quotient of consecutive elements is constant. [e] (July 27 — August 3, 2012)
  • Developing Article Jet engine [r]: A reaction engine that discharges a high velocity jet of fluid to generate thrust in accordance with Newton's laws of motion. [e] (July 20 — 27, 2012)
  • Approved Article Block cipher [r]: A symmetric cipher that operates on fixed-size blocks of plaintext, giving a block of ciphertext for each [e] (July 13 — 20, 2012)
  • Stub Higgs boson [r]: A massive spin-0 elementary particle, first proposed by Peter Higgs, that plays a key role in explaining the mass of other elementary particles. [e] (July 6 — 13, 2012)
  • Developing Article Dementia [r]: Progressive decline in two or more cognitive domains that is severe enough to interfere with the performance of everyday activities. [e] (June 29 — July 6, 2012)
  • Developed Article Scalawag [r]: A Southern white American who joined the Republican party during Reconstruction. [e] (June 22 — 29, 2012)
  • Developing Article Formal fuzzy logic [r]: A system which translates vague assumptions into probabilities that can be used in calculations. [e] (June 16 — 22, 2012)
  • Developed Article Politics [r]: Activity that relates to the way in which society is governed, and the process by which human beings living in communities make decisions and establish obligatory values for its members. [e] (June 8 — 16, 2012)
  • Developing Article King cobra [r]: the largest venomous snake in the world belonging to the family Elapidae, found throughout South and Southeast Asia. [e] (June 1 — 8, 2012)
  • Developing Article Buddhism [r]: Spiritual tradition founded on the teachings of the Buddha. [e] (May 28 — June 1, 2012)
  • Approved Article Europe [r]: Sixth largest continent; area 10,000,000 km2; pop. 720,000,000 [e] (May 19 — 28, 2012)
  • Developed Article Black mamba [r]: A large, highly venomous snake which is the longest venomous snake in its native habitat, Africa. [e] (May 11 — 19, 2012)
  • Approved Article Passive attack [r]: An attack on a communications system in which the attacker reads messages he is not supposed to but does not alter them. [e] (May 5 — 11, 2012)
  • Approved Article Economics [r]: The analysis of the production, distribution, and consumption of goods and services. [e] (April 28 — May 5, 2012)
  • Developed Article Choked flow [r]: A limiting point for the mass flow rate of a gas which occurs under specific conditions when the gas flows through a restriction (such as a valve, a convergent-divergent nozzle, the hole in an orifice plate, or a leak in a gas pipeline or other gas container) into a lower pressure environment. [e] (April 20 — 28, 2012)
  • Developing Article RMS Titanic [r]: British passenger liner that sank on its maiden voyage in 1912 after hitting an iceberg in the Atlantic Ocean; best-known maritime disaster. [e] (April 13 — 20, 2012)
  • Developed Article Karl Marx [r]: 19th century philosopher and economist. Creator of a theoretical foundation for Communism. [e] (April 6 — 13, 2012)
  • Approved Article ASIMO [r]: A Japanese humanoid robot created by Honda. [e] (March 31 — April 6, 2012)
  • Developed Article Associated Legendre function [r]: Function defined by P^{(m)}_\ell(x) = (1-x^2)^{m/2} \tfrac{d^m}{dx^m} P_\ell(x) where P denotes a Legendre function. [e] (March 23 — 31, 2012)
  • Approved Article The Social Capital Foundation [r]: A Brussels-based NGO promoting social capital and social cohesion. [e] (March 17 — 23, 2012)
  • Approved Article History of economic thought [r]: the historical development of economic thinking. [e] (March 9 — 17, 2012)
  • Developed Article Los Alamos National Laboratory [r]: A U.S. Department of Energy (DOE) national laboratory located in Los Alamos, New Mexico and originally the development and construction center of nuclear weapons during the Manhattan Project for use by the United States in World War II. [e] (March 2 — 9, 2012)
  • Developed Article Diabesity [r]: A term referring to the intricate relationship between type 2 diabetes and obesity. [e] (February 24 — March 2, 2012)
  • Developed Article Electroconvulsive therapy [r]: A psychiatric treatment that involves inducing a seizure in a patient by passing electricity through the brain. [e] (February 18 — 24, 2012)
  • Approved Article International economics [r]: The study of the patterns and consequences of transactions and interactions between the inhabitants of different countries, including trade, investment and migration. [e] (February 10 — 18, 2012)
  • Developed Article The Clash of Civilizations and the Remaking of World Order [r]: A book, by Samuel Huntington, assuming a fundamental conflict between civilizations of different cultures, and discussing grand strategy to deal with this conflict [e] (February 3 — 10, 2012)
  • Developed Article National Institute of Standards and Technology [r]: A measurement standards laboratory which is a non-regulatory agency of the United States Department of Commerce. [e] (January 27 — February 3, 2012)
  • Developed Article Hausdorff dimension [r]: The extended non-negative real exponent associated to any metric space where the Hausdorff measure changes from ∞ to 0. [e] (January 20 — 27, 2012)
  • Approved Article Ideal gas law [r]: Relates pressure, volume and temperature for hypothetical gases of atoms or molecules with negligible intermolecular forces. [e] (January 14 — 20, 2012)
  • Developed Article Volatility (chemistry) [r]: A term used to characterize the tendency of a substance to vaporize. [e] (January 6 — 14, 2012)
  • Approved Article 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)
  • Developed Article Thomas Jefferson [r]: (1743-1826) Third President of the United States; author of the Declaration of Independence and the Virginia Statute for Religious Freedom; father of the University of Virginia [e] (December 23 — 31, 2011)
  • Developed Article Linguistics [r]: The scientific study of language. [e] (December 17 — 23, 2011)
  • Developed Article Kilt [r]: A knee-length, skirtlike, traditional Scottish garment, usually worn by men as part of Highland attire. [e] (December 9 — 17, 2011)
  • Developed Article Warfarin [r]: Rat poison also used as anticoagulant medication to prevent embolism and thrombosis [e] (December 2 — 9, 2011)
  • Developed Article 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)
  • Developed Article 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 — 26, 2011)
  • Developed Article British and American English [r]: A comparison between these two language variants in terms of vocabulary, spelling and pronunciation. [e] (November 12 — 19, 2011)
  • Developed Article Plymouth Colony [r]: English colony in North America, 1620-1691, until it was absorbed by Massachusetts. [e] (November 4 — 12, 2011)
  • Developed Article Arab Spring [r]: Protest movements in the Arab world that seek the removal of oppressive governments. [e] (October 28 — November 4, 2011)
  • Developed Article C (letter) [r]: The third letter of the English and Latin alphabets. [e] (October 22 — 28, 2011)
  • Approved Article Fertility (demography) [r]: The demographic analysis of having babies. [e] (October 14 — 22, 2011)
  • Developed Article Geometric series [r]: A series associated with a geometric sequence, i.e., consecutive terms have a constant ratio. [e] (October 8 — 14, 2011)
  • Developed Article Eurozone crisis [r]: A financial crisis involving member countries of the Eurozone [e] (October 1 — 8, 2011)
  • Developed Article Destroyer [r]: While the definition has evolved constantly, it is a multipurpose surface warship, generally less powerful than a cruiser, with capabilities against ship, aircraft, submarine, land, and sometimes ballistic missile targets [e] (September 26 — October 1, 2011)
  • Approved Article Cypherpunk [r]: People interested in cryptography as a tool for privacy, anonymity and social change. [e] (September 17 — 26, 2011)
  • Developed Article 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 — 17, 2011)
  • Lockheed SR-71 [r]: Add brief definition or description (September 2 — 10, 2011)
  • Developed Article Clostridium difficile [r]: A bacteria species causing infectious diarhhea and pseudomembranous colitis. [e] (August 25 — September 2, 2011)
  • Developed Article 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 — 25, 2011)
  • Developed Article Alice Bailey [r]: Author of spiritual, occult, esoteric and religious themes; early popularizer of terms New Age and Age of Aquarius. [e] (August 13 — 19, 2011)
  • Approved Article Félix d'Hérelle [r]: (1873 – 1949) - A French-Canadian bacteriologist, and the discoverer of bacteriophages. [e] (August 7 — 13, 2011)
  • Developed Article 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)
  • Developed Article Gut-brain signalling [r]: The interaction between the gastrointestinal tract and the brain. [e] (July 23 — 29, 2011)
  • Developed Article 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)
  • Developed Article 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)
  • Developed Article 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)
  • Developing Article 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)
  • Developed Article 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)
  • Approved Article 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)
  • Approved Article Macromolecular chemistry [r]: The study of the physical, biological and chemical structure, properties, composition, and reaction mechanisms of macromolecules. [e] (May 27 — June 3, 2011)
  • Developed Article Tecum Umam [r]: Legendary defender of the Maya and national hero of Guatemala. [e] (May 21 — 27, 2011)
  • Developed Article Heterotaxis [r]: A genus of orchids formed by a group of about fourteen large epiphytic neotropical species of small flowers, which previously were considered part of genus Maxillaria. [e] (May 4 — 21, 2011)

Articles of the Week (before May 4, 2011)

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

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