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|[[Image:Writeathon.png|left|54px]]<BIG>'''The global [[CZ:Monthly Write-a-Thon|Write-a-Thon]] is on!<br />''Join us today, Wednesday, March 5th!'''''</BIG><br />
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You're invited to start a new article and edit somebody else's new articleIt's a '''[[CZ:Monthly Write-a-Thon|Write-a-Thon]]'''!  It's a wiki-whoopie, a cyber-social, a collaborative kegger!
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=== Article of the Week <font size=1>[ [[CZ:Article of the Week|about]] ]</font> ===
[[Image:Plants and pollinators.jpg|right|thumb|150px|{{#ifexist:Template:Plants and pollinators.jpg/credit|{{Plants and pollinators.jpg/credit}}<br/>|}}Buzz of Life: One aspect of the interrelations among living entities. Researchers begin to understand the mechanisms governing the complex network interactions between plants and pollinators, such as hummingbirds, shown in this illustration from Ernst Haeckel's ''Kunstformen der Natur'' (1904).]]
The definition of '''life''', the determination of the fundamental nature of living things, and the explanation of life's [[Origin of life|origin]] and [[Evolution|evolution]], have engendered much thought, debate and research throughout history. The perspective on life at any given moment in history, even today, qualifies as realistic and fruitful only to the extent of human knowledge at the time. In this article we focus defining the activity of ''living''.  We focus on what essential activities living entities perform that enable their living &mdash; specifically, we focus on the fundamental processes of living, those that constitute the [[Systems biology|system]] that counts as a living thing, the "common denominator that allows for the discrimination of the living from the non-living".
<font size=1>[[Life|['''more...''']]]</font>


=== New Draft of the Week <font size=1>[ [[CZ:New Draft of the Week|about]] ]</font> ===
'''Sri Lanka''', officially named the '''Democratic Socialist Republic of Sri Lanka''', is an island nation in [[South Asia]], located 31 km off the south-east coast of [[India]]. It was known as '''Ceylon''' before 1972. It is sometimes called the ''Pearl of the Indian Ocean''.


The language issue is at the root of a bitter civil war; official language is [[Sinhalese language|Sinhala]], but  [[Tamil language|Tamil]] theoretically has the status of a national language. Tensions between the Sinhalese majority and Tamil separatists erupted into war in 1983, and tens of thousands have died in the ethnic conflict that continues to fester. After two decades of fighting, the government and the Liberation Tigers of Tamil Eelam (LTTE) formalized a cease-fire in February 2002 with Norway brokering peace negotiations. Violence between the LTTE and government forces intensified in 2006 and the government regained control of the Eastern Province in 2007. In January 2008 the government canceled the cease fire and by March 2008 it launched a major military offensive against the ethnic Tamil insurgents, closing off the battleground to journalists and UN monitors as the peace negotiators left the country. Fear pervades Tamil neighborhoods, which the government raids at night. Few Tamils are willing to speak their minds, lest they be detained under stringent emergency laws.<ref>Somini Sengupta, "Ethnic Divide Worsens as Sri Lanka Conflict Escalates, [http://www.nytimes.com/2008/03/08/world/asia/08lanka.html?_r=1&oref=slogin ''New York Times'' Mar. 8, 2008]</ref>
 
 
<font size=1>[[Sri Lanka|['''more...''']]]</font>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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<h4 style="margin:0 0 0.75em; padding:0;"> '''Article counts''' </h4>
<p style="line-height:15px; padding-left:20px;">
[[:Category:Citable versions of articles|Citable]] <font size=1>('''{{PAGESINCAT:Citable versions of articles}}''')</font><br />
[[:Category:Developed Articles|Developed]] <font size=1>('''{{PAGESINCAT:Developed Articles}}''')</font><br />
[[:Category:Developing Articles|Developing]] <font size=1>('''{{PAGESINCAT:Developing Articles}}''')</font><br />
[[:Category:Stub Articles|Stubs]] <font size=1>('''{{PAGESINCAT:Stub Articles}}''')</font><br />
<small>([[:Category:CZ Live|{{PAGESINCAT:CZ Live}} total]])</small>
</p>
----
ONGOING CLEANUP:<br>
<p style="line-height:15px; padding-left:2px;">
[[:Category:External_Articles|Ext]] <font size=1>('''{{PAGESINCAT:External_Articles}}''')</font>&nbsp;|&nbsp;
[[:Category:Pages with reference errors|Refs]] <font size=1>('''{{PAGESINCAT:Pages with reference errors}}''')</font><br>
[[:Category:Lemma Article|Definition only]] <font size=1>('''{{PAGESINCAT:Lemma Article}}''')</font><br />
</p>
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{{CZ:Quote}}
{{-}}
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----<h3 style="margin-top:0; padding-top:0.6em; border-top:1px dotted #e0e0e0;">
<big>[[CZ:Featured article|Featured Article]]: ''[[{{FeaturedArticleTitle}}]]''</big>
</h3>
{{CZ:Featured article/Current}}
|}
|}
<!-- <s>Strike-through text</s> -->
<div style='text-align: right;'><small>''[[{{FeaturedArticleTitle}}|Continued]]...''</small></div>

Latest revision as of 14:54, 4 September 2024

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Why is Citizendium deleting articles?


Help Write Articles about our World

Welcome to Citizendium, a wiki for providing free knowledge where authors use their real names. We regard information as a public good and welcome anyone who wants to share their knowledge on virtually any subject. Our online community prides itself on being congenial and supportive. Read more about who we are.


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Article counts

Citable (145)
Developed (1,128)
Developing (7,442)
Stubs (7,705)
(16,543 total)


ONGOING CLEANUP:

Ext (269) |  Refs (138)
Definition only (3,909)

Truth . . . never comes into the world but like a bastard, to the ignominy of him who brought her forth.
John Milton
       —add a quotation about knowledge or writing


Featured Article: Nuclear power reconsidered

After decades of failure to slow the rising global consumption of coal, oil and gas,[1] many countries have concluded that the world needs to reconsider nuclear power in order to lower the demand for fossil fuels.[2] Wind and solar power alone, without large-scale storage for these intermittent sources, are unlikely to meet the world's needs for reliable energy.[3][4][5] See Figures 1 and 2 on the magnitude of the world energy challenge.

Nuclear power plants that use nuclear reactors to create electricity could provide the abundant, zero-carbon, dispatchable[6] energy needed for a low-carbon future, but not by simply building more of what we already have. New innovative designs for nuclear reactors are needed to avoid the problems of the past.

(CC) Image: Geoff Russell
Fig.1 Electricity consumption may soon double, mostly from coal-fired power plants in the developing world.[7]

Issues Confronting the Nuclear Industry

New reactor designers have sought to address issues that have prevented the acceptance of nuclear power, including safety, waste management, weapons proliferation, and cost. This article will summarize the questions that have been raised and the criteria that have been established for evaluating these designs. Answers to these questions will be provided by the designers of these reactors in the articles on their designs. Further debate will be provided in the Discussion and the Debate Guide pages of those articles.

Footnotes

  1. Global Energy Growth by Our World In Data
  2. Public figures who have reconsidered their stance on nuclear power are listed on the External Links tab of this article.
  3. Pumped storage is currently the most economical way to store electricity, but it requires a large reservoir on a nearby hill or in an abandoned mine. Li-ion battery systems at $500 per KWh are not practical for utility-scale storage. See Energy Storage for a summary of other alternatives.
  4. Utilities that include wind and solar power in their grid must have non-intermittent generating capacity (typically fossil fuels) to handle maximum demand for several days. They can save on fuel, but the cost of the plant is the same with or without intermittent sources.
  5. Mark Jacobson believes that long-distance transmission lines can provide an alternative to costly storage. See the bibliography for more on this proposal and the critique by Christopher Clack.
  6. "Load following" is the term used by utilities, and is important when there is a lot of wind and solar on the grid. Some reactors are not able to do this.
  7. Fig.1.3 in Devanney "Why Nuclear Power has been a Flop"