Marspedia - User contributions [en]

Financial effort estimation

2013-02-27T12:44:34Z

Spammer: /* Cost per kg from Earth to Low earth orbit (unmanned) */

[[Image:Space2.png|thumb|300px|right|The cost to orbit]]
This page is a collection of '''Financial effort estimations'''. It covers all planning, preperations, material, transport, administration, etc.

==Systematics==
There are several stages that can be calculated separately:
*Transportation from [[Earth]] to Earth's [[orbit]]
*Transportation from Earth's orbit to [[Mars]]' orbit
*Transportation from Earth's orbit to Mars' surface
*Transportation from Earth's orbit to [[Earth's moon]]
*Transportation from Earth's moon to Mars' orbit
*Transportation from Earth's moon to Mars' surface

==Cost per kg from Earth to Low earth orbit (unmanned)==
Small launch vehicles (less than 2300kg): <ref>[[http://www.futron.com/pdf/resource_center/white_papers/FutronLaunchCostWP.pdf Space Transportation Costs: Trends in price per pound to orbit]</ref>
*USA, Athena 2 (2065kg to LEO): $11622 per kg
*Russia, Cosmos (1500kg to LEO): $8667 per kg
*USA, Pegasus XL (443kg to LEO): $30474 per kg
*Russia, Rockot (1850kg to LEO): $7297 per kg
*Russia, Shtil (430kg to LEO): $465 per kg
*Russia, START (632kg to LEO): $11687 per kg
*USA, Taurus (1380kg to LEO) $13768 per kg
*USA, Falcon 1e (430 to LEO) $1010 per kg

Medium launch vehicles (less than 12000kg):
*Europe, Ariane 44L (10200kg to LEO): $11029 per kg (last launch 2003)
*USA, Atlas 2AS (8618kg to LEO): $11314 per kg
*USA, [[Delta II rocket|Delta 2]] (5144kg to LEO): $10692 per kg
*Russia, Dnepr (4400kg to LEO): $3409 per kg
*China, Long March 2C (3200kg to LEO): $7031 per kg
*China, Long March 2E (9200kg to LEO): $5435 per kg
*Russia, Soyuz (7000kg to LEO): $5357 per kg
*USA, Falcon 9 (10450Kg to LEO) $4775 per kg first launch 2010
*[http://lux-researchpaper.com/custom-writing.php custom research papers]

Heavy launch vehicles (more than 12000kg):
*Europe, Ariane 5G(18000kg to LEO): $9167 per kg
*China, Long March 3B(13600kg to LEO): $4412 per kg
*Russia, [[Proton rocket|Proton]](19760kg to LEO): $4302 per kg
*USA, [[Space Shuttle]](28803kg to LEO): $10416 per kg ( lasts launchs 2011-2012)
*Ukraine, Zenit 2(13740kg to LEO): $3093 per kg
*Multinational, Zenit 3SL(15876kg to LEO: $5354 per kg
*USA, Falcon 9 Heavy (32000Kg to LEO) $2968 per kg (still in developement )
super heavy ( saturn V class )
*USA, SLS ( after space shuttle withdrawal) (70 000Kg to 130 0000Kg to LEO) work in progress

==Cost per person from Earth to Earth's orbit==
Here the mass of the person with an average of 70 kg is only part of it. Additional mass is calculated for the life support systems. Rockets must be man-rated for them to be used in manned transportation to space.

Current:
*USA, Space Shuttle: A partially re-usable manned transportation system. Cost estimates range from $100 million to $1 billion per launch.
*Russia, Soyuz-TMA :A robust module in its fifth generation of Soyuz-spacecraft. Cheaper than the Space Shuttle.
*China, Shenzou: The Chinese manned spacecraft, 3 manned flights have been launched.

Planned:
*USA, SpaceX Dragon: An upcoming manned spacecraft, the first by a private corporation. Might enable cheap manned access to orbit by the SpaceX rockets using the Falcon9 rocket. Cost: $49.9 million, plus a Dragon module (cost unknown atm).
*USA, Orion spacecraft: Will be using the new Ares I rocket, and will replace the Space Shuttle.
the ares 1 and ares V programm are canceled the new SLS launcher in devellopement ( 70 000KG to 130 000KG to earth's orbit ) will be use for Orion spacecraft

*USA, SpaceShipThree: A possible orbital spaceplane by Scaled Composites.

==Cost estimations in existing publications==
*[http://www.newscientist.com/article/dn4551-bush-to-announce-manned-mission-to-mars.html NewScientist 2004: ''"A human mission to Mars is expected to cost $40 billion to $80 billion."'']
*[http://www.marsdaily.com/reports/The_Appeal_Of_Mars_999.html MARS DAILY 2007: ''"U.S. experts estimate the cost of a manned mission to Mars at $500 billion. Russia believes it can place cosmonauts on the planet's surface in the next 12 years for just $14 billion, ..."'']
*[[Mars direct]] was estimated by NASA to be $55 billion
*[[Mars One]] is planned to cost "six billion US dollars".

These huge differences are the result of different mission targets - simple mission of flying to Mars and back (plans by Roskosmos (Russia) - similar to lunar Apollo program) is far more cheaper than permanent setlement or even NASA expediture mission (staying 90 days or about year). Expensivness of current NASA mission plans mostly comes from the fact, that they includes LEO, Moon base stages with 3+ subsequential flies to Mars, with manned ~600 day stay.

==External links==
*[http://www-personal.umich.edu/~chadjo/talks/LaunchSystems.ppt Michigan Mars Society - Launch Systems: Today and Tomorrow]

[[Category: Concepts]]
[[Category: Economics]]

==References==
<references/>

Marspedia:About

2012-10-15T12:45:57Z

Spammer:

=About MarsPedia=
MarsPedia is an official project of both [http://www.marssociety.org The Mars Society] and the Mars Foundation(tm)[http://marshome.org/][http://marsfoundation.org].

The Mars Society was founded in 1998 and the purpose of the Mars Society is to explore and settle the planet Mars.

The Mars Foundation was founded in 2004 to promote the permanent settlement of the planet Mars. MarsPedia's hosting and domain expenses are covered by donations from the Mars Foundation and individuals with shared interests in the goals of the Mars Foundation.

MarsPedia is currently in an early phase of development, and has been somewhat stalled for the past few years. The Mars Foundation is aware of this and working to raise funding and promote volunteerism for the MarsPedia project. If you are interested in helping with the development of MarsPedia, please Contact Us[http://marshome.org/contact.php].

=Differences versus Wikipedia=

There are several differences between Marspedia and Wikipedia in both policy and Wiki software capability.

==Marspedia Policies==

===Languages===
Currently, Marspedia is composed entirely of English-language articles. In time, and when established as a leading source in Mars-based information, Marspedia may be translated into a selection of modern languages to improve accessibility for international users. For now, we ask all users to create articles in English.

===Original Work is Allowed===
We are more open to material types than Wikipedia, and less interested in deleting material. Specifically, Wikipedia enforces a rule that all entries must NOT be "original work". That rule does not apply for Marspedia, we are very happy for you to post original work, provided it is not copyright. Therefore there is not so much duplication between Marspedia and Wikipedia as you might expect. For example, the Marspedia page on '''Insert Appropriate Link Here''' contains interesting material which under Wikipedia rules would be deleted because it is "original work".

Note: Once "original work" has been published on Marspedia, then anybody could put on Wikipedia a link to the Marspedia article, and that might be OK for Wikipedia as it would no longer be original work, and references are usually accepted over there. For those cases where you want to reference it elsewhere, we could arrange for it to become read-only protected.

===No Need to be Notable===

Wikipedia enforces a requirement that all articles about people or organizations must demonstrate why the subject is "notable". There is no such requirement on Marspedia, although there is a general expectation that it should somehow be related to Mars development.

===No Need to be Neutral===

You can advocate positions, but expect to be challenged. Conversely, do not just delete material you do not agree with, but feel free to add a rebuttal. I am here because I want to get know if it's OK to purchase custom research paper or get help from [http://marvelousessays.com term paper services] in the web. I guess buying essay papers in the web is risky. Students should know exactly that an organization, which offers custom papers is reliable!

If you do advocate positions, please do so in a manner that makes it obvious that it is your personal position and not that of Marspedia as a whole. You can do this using the tags <nowiki>'''''{{PersPosArticle}} ~~~'''''</nowiki> or <nowiki>'''''{{PersPosSection}} ~~~'''''</nowiki> which would display something like so:

'''''{{PersPosArticle}} [[User:MikeD|MikeD]]''''' 
'''''{{PersPosSection}} [[User:MikeD|MikeD]]'''''

===Commercial Links are OK===

It is perfectly fine to highlight products or services, including both your own and those of other persons or companies. Just make sure it is relevant.

==Software Capabilities==

Marspedia uses the latest stable version of Mediawiki, so in many respects it is very similar to Wikipedia. At the time of writing this, we were running version 1.11.1 while 1.13alpha was the unreleased development version.

===Interwiki===
Interwiki is now supported between Marspedia and it's sister sites Lunarpedia and ExoDictionary. To use interwiki you just use tags like:

:<nowiki>[[exd:Sandbox]], [[lunarp:Sandbox]], [[marsp:Sandbox]] and [[spacep:Sandbox]]</nowiki>.

These would take you to:

:[[exd:Sandbox]], [[lunarp:Sandbox]], [[marsp:Sandbox]] and [[spacep:Sandbox]] respectively.

Other examples would be:

:<nowiki>[[exd:Azimuth]], [[lunarp:Carbon economy]], [[marsp:Mars Express]] and [[spacep:ISDC_2007]]</nowiki>.

These would take you to:

:[[exd:Azimuth]], [[lunarp:Carbon economy]], [[marsp:Mars Express]] and [[spacep:ISDC_2007]] respectively.

'''The interwiki prefixes on the other sites are identical.'''

===Installed Extensions we admit to===

*CategoryTree
*Cite
*ImageMap
*MathStatFunctions
*ParserFunctions
*SpamBlacklist - Should we admit to having this or will that only encourage the idots to waste their time and sometimes ours
*Spellcheck
*articletocategory
*create
*inputbox

We recently added the footnote capability to Marspedia, so that is now the same.

Other differences:

* Wikipedia has some cool citation templates which we might add
* Wikipedia reflist template is not available i.e. {{reflist}}
* the Wikipedia [citation needed] template is not available: {{Fact|date=March 2007}}.

* [http://www.spencer-tech.com/my_scripts/mp3_player free web mp3 player] is another officially admitted Wiki extension. It will help you to add music files to your web site and allow your visitors to listen to them. It's very easy to install and absolutely free.

Extensions in the pipeline (maybe):

*Graphviz
*TeX Editor (This is really nice but we had to disable it as there seemed to be a security issue with it)
*WikiTeX (Will take quite some time to install, has a plethora of dependencies)

[[category:Help]][[category:Main Page Maintenance]]

Marspedia:About

2012-06-21T13:01:02Z

Spammer:

=About MarsPedia=
MarsPedia is an official project of both [http://www.marssociety.org The Mars Society] and the Mars Foundation(tm)[http://marshome.org/][http://marsfoundation.org].

The Mars Society was founded in 1998 and the purpose of the Mars Society is to explore and settle the planet Mars.

The Mars Foundation was founded in 2004 to promote the permanent settlement of the planet Mars. MarsPedia's hosting and domain expenses are covered by donations from the Mars Foundation and individuals with shared interests in the goals of the Mars Foundation.

MarsPedia is currently in an early phase of development, and has been somewhat stalled for the past few years. The Mars Foundation is aware of this and working to raise funding and promote volunteerism for the MarsPedia project. If you are interested in helping with the development of MarsPedia, please Contact Us[http://marshome.org/contact.php].

=Differences versus Wikipedia=

There are several differences between Marspedia and Wikipedia in both policy and Wiki software capability.

==Marspedia Policies==

===Languages===
Currently, Marspedia is composed entirely of English-language articles. In time, and when established as a leading source in Mars-based information, Marspedia may be translated into a selection of modern languages to improve accessibility for international users. For now, we ask all users to create articles in English.

===Original Work is Allowed===
We are more open to material types than Wikipedia, and less interested in deleting material. Specifically, Wikipedia enforces a rule that all entries must NOT be "original work". That rule does not apply for Marspedia, we are very happy for you to post original work, provided it is not copyright. Therefore there is not so much duplication between Marspedia and Wikipedia as you might expect. For example, the Marspedia page on '''Insert Appropriate Link Here''' contains interesting material which under Wikipedia rules would be deleted because it is "original work".

Note: Once "original work" has been published on Marspedia, then anybody could put on Wikipedia a link to the Marspedia article, and that might be OK for Wikipedia as it would no longer be original work, and references are usually accepted over there. For those cases where you want to reference it elsewhere, we could arrange for it to become read-only protected.

===No Need to be Notable===

Wikipedia enforces a requirement that all articles about people or organizations must demonstrate why the subject is "notable". There is no such requirement on Marspedia, although there is a general expectation that it should somehow be related to Mars development.

===No Need to be Neutral===

You can advocate positions, but expect to be challenged. Conversely, do not just delete material you do not agree with, but feel free to add a rebuttal. Paper written by the experienced [http://supremeessays.com essay writer] could give students a possibility to reach highest grades.

If you do advocate positions, please do so in a manner that makes it obvious that it is your personal position and not that of Marspedia as a whole. You can do this using the tags <nowiki>'''''{{PersPosArticle}} ~~~'''''</nowiki> or <nowiki>'''''{{PersPosSection}} ~~~'''''</nowiki> which would display something like so:

'''''{{PersPosArticle}} [[User:MikeD|MikeD]]''''' 
'''''{{PersPosSection}} [[User:MikeD|MikeD]]'''''

===Commercial Links are OK===

It is perfectly fine to highlight products or services, including both your own and those of other persons or companies. Just make sure it is relevant.

==Software Capabilities==

Marspedia uses the latest stable version of Mediawiki, so in many respects it is very similar to Wikipedia. At the time of writing this, we were running version 1.11.1 while 1.13alpha was the unreleased development version.

===Interwiki===
Interwiki is now supported between Marspedia and it's sister sites Lunarpedia and ExoDictionary. To use interwiki you just use tags like:

:<nowiki>[[exd:Sandbox]], [[lunarp:Sandbox]], [[marsp:Sandbox]] and [[spacep:Sandbox]]</nowiki>.

These would take you to:

:[[exd:Sandbox]], [[lunarp:Sandbox]], [[marsp:Sandbox]] and [[spacep:Sandbox]] respectively.

Other examples would be:

:<nowiki>[[exd:Azimuth]], [[lunarp:Carbon economy]], [[marsp:Mars Express]] and [[spacep:ISDC_2007]]</nowiki>.

These would take you to:

:[[exd:Azimuth]], [[lunarp:Carbon economy]], [[marsp:Mars Express]] and [[spacep:ISDC_2007]] respectively.

'''The interwiki prefixes on the other sites are identical.'''

===Installed Extensions we admit to===

*CategoryTree
*Cite
*ImageMap
*MathStatFunctions
*ParserFunctions
*SpamBlacklist - Should we admit to having this or will that only encourage the idots to waste their time and sometimes ours
*Spellcheck
*articletocategory
*create
*inputbox

We recently added the footnote capability to Marspedia, so that is now the same.

Other differences:

* Wikipedia has some cool citation templates which we might add
* Wikipedia reflist template is not available i.e. {{reflist}}
* the Wikipedia [citation needed] template is not available: {{Fact|date=March 2007}}.

* [http://www.spencer-tech.com/my_scripts/mp3_player free web mp3 player] is another officially admitted Wiki extension. It will help you to add music files to your web site and allow your visitors to listen to them. It's very easy to install and absolutely free.

Extensions in the pipeline (maybe):

*Graphviz
*TeX Editor (This is really nice but we had to disable it as there seemed to be a security issue with it)
*WikiTeX (Will take quite some time to install, has a plethora of dependencies)

[[category:Help]][[category:Main Page Maintenance]]

Mining

2012-04-17T11:31:19Z

Spammer:

'''Mining''' is the process of fetching natural [[raw materials|raw material]] from below the [[Mars|Martian]] surface for further processing. The fetched raw materials are frozen [[water]], [[minerals]] and [[ore]].

==Technology==
Mining is an [[energy]] consuming job. Due to the thin [[atmosphere]] the [[digging machine]]s are supposed to work [[automation|automated]] or remote controlled.

==Surface Mining Methods==
===Strip Mining===
When resources are available close to the surface, a strip mine is the most efficient method of extraction. The layers of [[regolith]] covering the resource are taken away, and the exposed ore is mined. This method is also called open-pit mining.

==Subsurface Mining Methods==
When the natural resource lies far underground, it is far more efficient to dig tunnels to access the ore than to remove the overlaying rock and regolith. Since Mars has only about 38% as much gravity as Earth<ref> McGRAW-HILL ENCYCLOPEDIA OF Science & Technology, 8 th edition, vol. 10 (c) 1997 page 527 </ref> people should be able to extend mines to a depth about 2.6 times as deep as on earth without the tunnel collapsing from hydrostatic pressure. This should allow the search for valuable minerals to a depth of more than 5 miles. There are many subsurface mining methods, and they are often used in conjunction with each other.
===Drift Mines===
Drift mining consists of primarily horizontal tunnels. These are most often dug into a hillside.

===Slope Mining===
Slope mining uses diagonal tunnels to access ore.

===Shaft Mining===
Vertical shafts are used in shaft mining.

===Room and Pillar Mining===
In this method, large galleries are dug into the ore. Pillars of ore are left at regular intervals to support the celing. After all the ore has been removed, these pillars may be removed through retreat mining, leading to the collapse of the chamber. This collapse may lead to surface subsidence.

===Longwall Mining===
Longwall mining begins with a long horizontal shaft. The roof is held up mechanically by moveable supports. One side of the shaft is mined along its entire length. As this mine progresses, the mechanical supports move foreward with the face. The old area of the mine is left unsupported, and allowed to collapse under its own weight, often leading to surface subsidence.

==Emerging galleries==
The [[artificial cave]]s are a nice side effect. They can be used to expand the [[settlement]] with storage rooms, [[house|living rooms]], underground [[greenhouse]]s, gas container for [[energy storage]] or storage of [[:category:chemistry|chemicals]].

==Reference==
<references/>

[[category: technology]]
[[category: geology]]
[[category: material]]
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Overpopulation

2012-04-17T11:31:10Z

Spammer:

'''Overpopulation''' is when the [[population]] is too large to be supported by the [[local resources|environment]]. In worst case the whole population becomes unstable and develops to the verge of extinction.

The population on [[Earth]] is steadily growing, and Earth is already showing signs of overpopulation. Colonization of [[Mars]] may reduce the problems of overpopulation on Earth.

However, overpopulation is also a threat to a colony if the production and consumption is increasingly out of balance. A population does not necessarily have to grow, but if it does, the available vital resources must be considered. Knowing the resource limitation, there must be a limitation in the population's growth.

In Martian [[greenhouse]]s an overpopulation of certain [[insects]] can be a potential threat to the food production. The equilibrium of the artificial biosphere must be taken care of.

==Limiting a population's growth==
This paragraph lists a number of principles, regardless of the moral aspects. Some are already performed in human society, others are common natural processes in natural animal populations.

===Lawful birth control===

====Penalty for surplus offspring====
In 1979 China introduced the ''One Child Policy'', allowing only one child per couple. The results are not satisfying and it is highly controversial. One of the negative side effects is the growing imbalance of female and male babies.

====Sterilization====
This is a very common method for animals. It has been studied as a method for human birth control, but is unethical.

====Education about birth control====
In third world countries, where people are uneducated about birth control, populations are rising. In first world countries, where people are educated, populations are falling. Educating people about birth control will help limit the population.

===Natural limitation===

====Limited food====
Energetically, a population can not grow beyond a certain size. The limit is reached with the equilibrium of the energy consumption of their member's metabolism and the energy contents of the available [[food]].

====Predators====
Scientists found out that if the sharks in the sea become extinct, this will be a catastrophe for the ecological maritime system. Some herbivore fish would reproduce explosively, eating up certain plants, starting a whole chain reaction of extinction of many species.

==How a Martian colony can help solving Earth's overpopulation problem==
Some people might think, we simply bring parts of the Earth's population to Mars, thus reducing the number of persons living from Earth's resources. Unfortunately, this does not work out, because the transportation effort and the kick-off support for the Martian colony consumes far more terrestrial resources than the resettled part of the population would ever use for a regular life on Earth.

But salvation could come from the economical principles of such a colony, which are fundamentally different from the terrestrial. The Martian colony is bound to complete [[recycling]] and live with extremely limited [[energy]], and all this must function in a local site. Special technology needs to be introduced to meet these requirements, and the experience with this technology on Mars can be used by communities on Earth, as well. This way, the officials on Earth will hopefully gain an environmental awareness and learn how to live in a balanced way on it's own resources.

==External links==
*[http://geography.about.com/od/populationgeography/a/onechild.htm China's One Child Policy]

[[Category: Human Considerations]]
[[Category: Biospherics]]
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Help:Maintenance and Setup

2011-09-24T07:20:09Z

Spammer: /* How do I install MediaWiki? */

'''Note: this is the public domain MediaWiki FAQ from 13 September 2006'''

== Installation and configuration ==
=== Where do I download MediaWiki? ===

The latest stable release of MediaWiki can be downloaded from [http://sourceforge.net/project/showfiles.php?group_id=34373 http://sourceforge.net/project/showfiles.php?group_id=34373]. You will be prompted to select a download mirror. Files are supplied in a [[:en:Tar (file format)|.tar]][[:en:gzip|.gz]] archive.

MediaWiki can also be [[download from SVN|obtained direct from our Subversion]] repository.

=== How do I install MediaWiki? ===

Installing MediaWiki takes between 10 and 30 minutes (when using MySQL), and involves uploading/copying files, creating a database and user, and [http://thebeginnerslens.com/ iphone photography] running the installer script to configure the software.

Full instructions can be found in the <tt>'''INSTALL'''</tt> file supplied in the distribution archive.

=== How do I install MediaWiki using a package? ===

Many Linux distributions provide mediawiki in a packaged format for that distribution. The MediaWiki development team refers you to your Linux distribution for assistance with installing, configuring or using them. The individual communities & companies who maintain such packages should provide installation instructions.


=== Can I install more than one wiki on a server using MediaWiki? ===

It's possible to install more than one wiki on a server provided that:

*You use a different database for each wiki
OR
*You use a different database prefix for each wiki

For information on these options, see '''[[Manual:$wgDBname|$wgDBname]]''' and '''[[Manual:$wgDBprefix|$wgDBprefix]]''' respectively.

For information on setting up a wiki family, see [[Help:Wiki family]].

=== How do I enable uploading? ===

File uploads are an often-used feature of MediaWiki, but are disabled by default in all current release versions. To enable them, first make the upload directory (default <tt>images</tt>) writable by the web server (CHMOD 777 or allow the Apache user to write to it, etc.) then set '''[[Manual:$wgEnableUploads|$wgEnableUploads]]''' to <tt>true</tt> in LocalSettings.php.

=== How do I purge a cached page? ===

To purge a cached page, such as when making changes to the navigation bar, add &action=purge to the end of the page url.

e.g. http://www.mediawiki.org/w/index.php?title=Main_Page&action=purge

=== How do I allow uploading of additional formats? ===

MediaWiki requires that allowed file upload formats are specified using the '''[[Manual:$wgFileExtensions|$wgFileExtensions]]''' configuration directive.

For example, to allow uploading of PDF files, add the following to LocalSettings.php:

$wgFileExtensions[] = 'pdf';

=== "File is corrupt or has an invalid extension" ===

Some users have reported that after adding a file format to the allowed extensions list, an error is encountered. The text of the error is similar to the following:

:''The file is corrupt or has an incorrect extension. Please check the file and upload again.''

'''Possible solutions:'''

* Set the value of '''[[Manual:$wgMimeDetectorCommand|$wgMimeDetectorCommand]]''', e.g. under Unix or Linux, this would be
*: <tt>$wgMimeDetectorCommand = "file -bi";</tt>
* Compile/install the '''[http://pecl.php.net/package/fileinfo fileinfo]''' PHP extension

=== How can I create Interwiki Links in my Wiki? ===
Just edit the Table "interwiki" and add the prefix and the URL of the Wikipedia or Archive which you want.

[[Image:Clarify-Simple.png]]

==Upgrading==

Generic instructions on the upgrade process can be found in the '''<tt>UPGRADE</tt>''' file supplied with the software. See also [[Manual:Upgrading MediaWiki]] and the more specific [[Manual:Upgrading to 1.6]]..

== Changing the Interface ==

=== How do I change the logo? ===

The logo that appears in the top left of each page is determined by the [[Manual:$wgLogo|$wgLogo]] configuration setting in the ''LocalSettings.php'' file.

To change this you simply need to change the value of $wgLogo to point to the URL of your own logo image. You can upload a file via the wiki and use that address (which allows it to be replaced easily, so you may want to protect the page if you use this method) or use an image uploaded to your server via other means.

Note: It is possible to simply overwrite the default logo installed with MediaWiki, but this is strongly advised against, as an upgrade may end up overwriting it or change the default location of this file.

''Tip: The logo image should be 135 pixels square.''

=== How do I customize the logo in the top left corner? Can I? ===
The logo is a portlet block without a pBody section. It is identified by the p-logo id. The background image is specified by the '''wgLogo''' variable, which is defined in /includes/DefaultSettings.php. This location is relative to the web server root and not the system root. Redefine this in /[[LocalSettings.php]] to change the image. If set wrong there will be no image on the page; check your web server error log and adjust accordingly. However the size of the p-logo will need to be big enough for the logo if it is not to be clipped. This is set in the stylesheet, under the p-logo style, the default setting is:

<pre>
#p-logo {
z-index: 3;
position:absolute; /*needed to use z-index */
top: 0;
left: 0;
height: 155px;
width: 12em;
overflow: visible;
}
</pre>

=== How do I customize the URL of the logo in the top left corner when you click it? ===

By default, clicking the logo takes you to the main page. If you want to change which page is the main page, edit [[MediaWiki:Mainpage]]. Or to make the link go to any arbitrary URL, for Monobook skin, edit Monobook.php and find and replace <code><?php echo htmlspecialchars($this->data['nav_urls']['mainpage']['href'])?></code> with the URL of your choice and replace <code><?php $this->msg('mainpage') ?></code> with the desired link title.

===Reducing the size of the logo===

Note that a tag is on top of the logo so if you are trying to reduce the size of the logo's portlet you will also need to change the #p-logo a and #p-logo a:hover rules. The default setting for these is:
<pre>
#p-logo a,
#p-logo a:hover {
display: block;
height: 200px;
width: 12.2em;
background-repeat: no-repeat;
background-position: 35% 50% !important;
text-decoration: none;
}
</pre>

This simple customization will re-define the size of all of them at once...
<pre>
#p-logo,
#p-logo a,
#p-logo a:hover {
height: 75px;
}
</pre>
There is one more rule controlling the amount of space between the logo and first portlet in the side column - the padding on the top of #column-one. By default this is:
<pre>
#column-one { padding-top: 160px; }
</pre>
If you want to remove the logo completely, comment out the '''wgLogo''' variable. Then set the column-one padding to a small value, such as 21:
<pre>
#column-one { padding-top: 21px; }
</pre>

You don't have to go edit the css file directly. You can go to <Your Wiki URL>?title=MediaWiki:Monobook.css. Hit edit and make your changes there. This has preference over the monobook main css.

=== How do I change the icon in the browser's address line (favicon)? ===

* Simply replace the favicon.ico image file at the root of your wiki with the .ico image file you want.
* Alternatively edit the [[Manual:$wgFavicon |$wgFavicon]] setting in ''LocalSettings.php'' and add $wgFavicon = /path/to/your/favicon.ico;

==== Rewrite Rule ====

If you are using a rewrite rule in .htaccess to remove "index.php" from the URL, you will also need to add an exception for .ico files. Simply add the following rule to your .htaccess:

:RewriteRule .*\.ico$ - [L]

This rule must appear ''before'' the index.php rule.

==== Case Sensitivity ====

When uploading the favicon file, be sure the filename is capitalized. (That is, "Favicon.ico", not "favicon.ico".) Some browsers (e.g., Firefox) will not be able to find the file unless its name is capitalized.

=== How do I customize the navigation bar? ===

The contents of the navigation bar which appears to the left of each page using the Monobook skin are determined by the '''[[MediaWiki:Sidebar]]''' page. For information on customising these, please see [[Manual:Navigation bar]].

=== How do I change the main page? ===

By default, MediaWiki looks for a page with the title ''Main Page'' and serves this as the default page. This can be changed by altering the contents of '''[[MediaWiki:Mainpage]]''' to point to a different title. This will not affect any of the links of the main navigation bar, including the 'Main Page' link included there at install time; to change these links, edit '''[[MediaWiki:Sidebar]]'''.

=== How can I hide the table of contents? ===

; For one page
Place the magic word <tt>'''<nowiki>__NOTOC__</nowiki>'''</tt> into the page markup.

; For all pages
Edit the [[:en:CSS|CSS]] files; locate the style for the table of contents and add <tt>'''display: none;'''</tt> to the definition.

; Per user
Users can also opt to have the table of contents hidden. This is a user preference, set in '''[[Special:Preferences]]'''.

=== How do I change the interface text? ===

Interface text is altered using the MediaWiki namespace. By default, this is populated with text in the language selected during installation or upgrade. To alter the contents of a ''system message'', edit the corresponding page in the MediaWiki namespace.

* For a list of system messages, see '''[[Special:Allmessages]]'''
* To switch ''off'' the MediaWiki namespace, see the '''[[Manual:$wgUseDatabaseMessages|$wgUseDatabaseMessages]]''' configuration setting
* To remove the ''Privacy policy'' or ''Disclaimers'' links at the bottom of each page, set the content of pages '''[[MediaWiki:Privacy]]''' or '''[[MediaWiki:Disclaimers]]''' respectively to a single minus sign.

=== How do I change the interface language? ===

# Change the value of '''[[Manual:$wgLanguageCode|$wgLanguageCode]]''' in LocalSettings.php
# Run the '''<tt>rebuildMessages.php</tt>''' maintenance script to rebuild the MediaWiki namespace
for example under unix, run this: "php -f rebuildMessages.php rebuild" in you maintenance directory.

=== How do I remove the article/edit etc tabs for users who are not logged in? ===

You can achieve this by modifying the skin. For the default MonoBook skin, in the ''MonoBook.php'' file, search for this line:
foreach($this->data['content_actions'] as $key => $action) {
and insert after ''$action)'' this
if($this->data['loggedin']==1)
had to place inside the <?php). So it looks like this:
foreach($this->data['content_actions'] as $key => $action) if($this->data['loggedin']==1) {
To conditionally hide individual tabs, modify the code to check the value of each $key inside the foreach loop.

===How do I remove the "Create an Account or Login" link at the top right of the screen?===

In Monobook.php change this statement:
foreach($this->data['personal_urls'] as $key => $item) {
...
}
to:
foreach($this->data['personal_urls'] as $key => $item) {
if ($key != 'login') {
...
}
}

=== How do I hide the section edit links for users who are not logged in? ===

Edit your skin, eg MonoBook.php, and add this before </head>:

<pre>
<?php if(!$this->data['loggedin']) { ?>
<style>

</style>
<?php } ?>
</pre>

If you want to hide the links for all users including logged in users, instead edit monobook/main.css and add <code>.editsection { display: none; }</code>

===How do I change the footer?===

To add or remove items from the footer on your MediaWiki page, you must edit the skin. For example if you go in to MonoBook.php you will find the following code.

<pre>
$footerlinks = array(
'lastmod', 'viewcount', 'numberofwatchingusers', 'credits', 'copyright',
'privacy', 'about', 'disclaimer', 'tagline',
);
</pre>

In the above you can simply add and remove items from the array that you wish to appear in your footer, this must be done for each template though and remember it may take a while to update due to MediaWiki caches.

You can also customize the individual items by modifying certain pages or parameters:
* lastmod - edit [[MediaWiki:Lastmodified]]
* viewcount - edit [[MediaWiki:Viewcount]]
* numberofwatchingusers - edit [[MediaWiki:Number of watching users pageview]]. This only appears if you also add <code>$wgPageShowWatchingUsers = true;</code> to LocalSettings.php.
* copyright - edit [[MediaWiki:Copyright]]. The parameter $1 on that page is replaced with a link to the details of copyright for your wiki. In LocalSettings.php $wgRightsText for the link text and set either $wgRightsPage or $wgRightsUrl with the location of a wiki page or external URL.
* privacy - this is a link only. Edit [[MediaWiki:Privacy]] for the link text and [[MediaWiki:Privacypage]] for the wiki page to which to link.
* about - this is a link only. Edit [[MediaWiki:Aboutsite]] for the link text and [[MediaWiki:Aboutpage]] for the wiki page to which to link.
* disclaimer - this is a link only. Edit [[MediaWiki:Disclaimers]] for the link text and [[MediaWiki:Disclaimerpage]] for the wiki page to which to link.
* tagline - not currently used in the footer

=== How can I change what the <title> of each page is? Where do I make changes?===
Most of the text that you want to change, can be found in the namespace of MediaWiki.

In order to change titles, texts, announcements and the such, go to Special:Allmessages, where you will see the text associated with the pages you wish to change. (As far as I can tell, you need to log in as an administrator (like the one you made when you installed) to edit the protected entries in the MediaWiki namespace.)

If you want to change the title in your browser, you need to edit [[MediaWiki:pagetitle]]. Go there and edit it just like you would any other page in your Wiki.

In recent versions of MediaWiki, [[MediaWiki:pagetitle]] is <nowiki>$1 - {{SITENAME}}</nowiki> by default. If <nowiki>{{SITENAME}}</nowiki> is producing the wrong text for you, you need to set $wgSitename in your LocalSettings.php.

If $wgSitename is correct in LocalSettings.php but <nowiki>{{SITENAME}}</nowiki> is still wrong, it may be that you're using a user-contributed language file which incorrectly sets $wgSitename to a transliteration of "Wikipedia". Edit the language file to correct this. For example, the hebrew language file is at <tt>languages/LanguageHe.php</tt> in your wiki directory.

Don't forget to clear your browser cache after you fix it.

===How do I make external links open in a new window?===
See http://meta.wikimedia.org/wiki/Opening_external_links_in_a_new_window.

==Basic Usage==

===How do I edit a page?===

To edit a page, simply click the '''edit''' link that appears on each page. Using the default MonoBook skin, this is in the form of a tab at the top of the page. A form will appear, containing the existing markup. When you have finished making modifications, click the '''Save''' button to commit your changes.

===How do I create a new page?===

There are several paths to creating a new page:

*Create a link to the page on another page, then click on the red link which appears
*Browse to the intended location of the page, e.g. <nowiki>http://www.foowiki.org/index.php/New_page</nowiki> and click on the '''edit''' link

On some wikis,
a failed search for a page will contain a link which allows you to edit that page.

see [[Help:Starting a new page]]

===How do I delete a user?===

Users cannot be deleted, but they can be banned and their passwords can be scrambled.

===How do I delete an old version of a page?===
For normal users it is not possible to delete a version of an old page. Pages can only be moved, not deleted.

Administrators can delete version, so they can not been seen by regular users anymore. They're still stored in the database, but they can be deleted using the [[meta:SpecialDeleteOldRevisions|SpecialDeleteOldRevisions]]-extension.

===Are there any editing tutorials available?===

There are several editing tutorials available, mostly on Wikimedia sister projects, such as Wikipedia. There are also markup references, etc. available on ''Meta''.

*[[m:Help:Editing|Editing]] help content on ''Meta''
*The ''[[:en:Wikipedia:How to edit a page|How to edit a page]]'' guide on the English Wikipedia

===How do I view the printable form of a page?===

MediaWiki includes stylesheets which automatically style a page appropriately when it is printed; using the print or print preview function within your browser ought to render the page in a printable form.

You can also view this printable form using the ''printable version'' link in the toolbox.

===How do I reset a password?===

For security, the user password hashes include "salt" to make it more difficult for someone who somehow gets hold of the hashes to crack them all at once.

For compatibility with old (pre 1.1.0) installations set [[Manual:$wgPasswordSalt (section)|this]] to false.

To reset the password of users when this option is set use the following query:

UPDATE user SET user_password=md5(concat(user_id,'-',md5('mynewpassword'))) where user_name ='WikiSysop' ;

user_id is the userid of the user, mynewpassword has to be your new password and WikiSysop could be an other user.

==Customising Further==

===How can I prevent editing by anonymous users?===

As of MediaWiki 1.5 onwards, there have been significant improvements to user permissions settings which make restricting access to certain functions easier and more flexible. These are controlled by the '''[[Manual:$wgGroupPermissions|$wgGroupPermissions]]''' configuration option.

For information on using this option, see the ''[[m:Preventing Access|Preventing Access]]'' page on ''Meta''.

==Why...?==

===...is the Help namespace empty?===

We don't currently have a clean, internationalised set of help pages under a free license. A few developers are hoping to make this possible; however, the Help namespace currently ships in a blank state. You are free to add your own help pages, or copy certain of the items from ''Meta'', e.g. the user guide or [http://meta.wikimedia.org/wiki/Help:Contents MediaWiki Handbook], these two collections being free to use under the [[:en:GNU Free Documentation License|GNU Free Documentation License]].

===...are some of my images not showing up after an upgrade?===

Several users have reported that, following an upgrade or a moving of their wiki, several images fail to be shown inline. The files exist, and the image description pages show a MIME type of <tt>unknown / unknown</tt> and, in some cases, a warning about potentially dangerous files.

The cure for this is to run the rebuildImages maintenance script from the command line. This sets the MIME types for all files in the database, and should restore things back to normal.

===...are all PNG files not being turned into thumbnails?===

After upgrading to a more recent version of PHP, it is possible a different MimeMagic.php function is being used to detect file MIME types, particularly the built-in PHP function mime_content_type, which fails to detect PNG files. Search the web for mime_content_type png for information on fixing this bug at the PHP level, possibly by editing your magic.mime file.

'''See [[Help:FAQ#Corrupt_or_Incorrect_Extension|here]] for more info.'''

===...is a search for a short keyword giving no hits===

The default settings for mysql demands that the minimum length of a word to be indexed for fulltext search is 4 characters. This can be a problem if you want to search for shorter words as substrings in pages. To change this, you need to reconfigure your mysql, as described [http://dev.mysql.com/doc/refman/4.1/en/fulltext-fine-tuning.html in the MySQL documentation] note that indexes must be rebuilt after resetting the mysql default settings.

===...can't I download MediaWiki 1.8?===

MediaWiki 1.8 is in a development state at present, and has not been packaged into a general release. The code can be [[download from SVN|downloaded from Subversion]] if desired.

===...doesn't this work? It works on Wikipedia!===

Wikimedia web sites run the current alpha code, MediaWiki 1.8. See above for caveats and information on obtaining this.

Also, they work with several extensions, such as "Makesysop" and "Renameuser" (the complete list exists in a [[Special:Version|version page]] of one of their projects.

===...do I get a '''403 Forbidden''' error after setting permissions on my Fedora system===
Fedora Core enables [http://en.wikipedia.org/wiki/SELinux SELinux] by default. Instructions for setting SELinux permissions for MediaWiki [[SELinux|are available]].

== Anti-spam ==

=== Where do I get the spam blacklist from and how do I install it? ===

The [[m:spam blacklist|spam blacklist]] extension can be found in [[Download from SVN|Subversion]]. For installation instructions, consult the [http://svn.wikimedia.org/viewvc/mediawiki/trunk/extensions/SpamBlacklist/README?view=markup README] file.

=== How do I whitelist domains from the spam blacklist? ===

You can list the domains you wish to whitelist on your local <nowiki> [[Mediawiki:Spam-whitelist]]</nowiki>-page.

For the format you need to use take the whitelist of the English language Wikipedia as example; [[wikimedia:w:en:MediaWiki:Spam-whitelist]]

=== How do I use $wgSpamRegex to block more than one string? ===

'''$wgSpamRegex''' is a powerful filter for page content. Adding multiple items to the regex, however, can be awkward. Consider this snippet:

$wgSpamRegexLines[] = 'display\s*:\s*none';
$wgSpamRegexLines[] = 'overflow:\s*\s*auto';
[...]
$wgSpamRegex = '/(' . implode( '|', $wgSpamRegexLines ) . ')/i';

This example code allows convenient addition of additional items to the regex without fiddling about each time. It also demonstrates two popular filters, which block some of the most common spam attacks.

==Where Now?==

===I've found a bug or have a feature request. Where do I post it?===

Bugs and feature requests should be posted on [[MediaZilla:|MediaZilla]], our implementation of [[:en:Bugzilla|Bugzilla]]. Please search the database prior to posting, to avoid creating duplicate entries.

===I have a question not answered here. Where do I go next?===

If you've exhausted the FAQ above, please try the following:

*Check the [[Project:Help|other sources of help]] on this site.
*[[Special:Search|Search]] the rest of this site
*Search our documentation archived on [[m:Main Page|Meta]]
*Search the web
*Post a message at [[Project:Support desk]]
*Email the [http://mail.wikipedia.org/mailman/listinfo/mediawiki-l mediawiki-l mailing list]
*Ask the developers in our IRC channel ([[:en:Freenode|Freenode]] network, channel '''[irc://irc.freenode.net/mediawiki #mediawiki]''').

===Recommended reading===

*[http://www.catb.org/~esr/faqs/smart-questions.html Asking smart questions]
*[http://www.chiark.greenend.org.uk/~sgtatham/bugs.html Effective bug reporting]

[[Category:Help]]

Marspedia:About

2011-07-28T08:39:57Z

Spammer: /* Installed Extensions we admit to */

=About MarsPedia=
MarsPedia is an official project of the Mars Foundation(tm)[http://marshome.org/][http://marsfoundation.org] which was founded in 2004 to promote the permanent settlement of the planet Mars. MarsPedia's hosting and domain expenses are covered by donations from the Mars Foundation and individuals with shared interests in the goals of the Mars Foundation.

MarsPedia is currently in an early phase of development, and has been somewhat stalled for the past few years. The Mars Foundation is aware of this and working to raise funding and promote volunteerism for the MarsPedia project. If you are interested in helping with the development of MarsPedia, please Contact Us[http://marshome.org/contact.php].

=Differences versus Wikipedia=

There are several differences between Marspedia and Wikipedia in both policy and Wiki software capability.

==Marspedia Policies==

===Languages===
Currently, Marspedia is composed entirely of English-language articles. In time, and when established as a leading source in Mars-based information, Marspedia may be translated into a selection of modern languages to improve accessibility for international users. For now, we ask all users to create articles in English.

===Original Work is Allowed===
We are more open to material types than Wikipedia, and less interested in deleting material. Specifically, Wikipedia enforces a rule that all entries must NOT be "original work". That rule does not apply for Marspedia, we are very happy for you to post original work, provided it is not copyright. Therefore there is not so much duplication between Marspedia and Wikipedia as you might expect. For example, the Marspedia page on '''Insert Appropriate Link Here''' contains interesting material which under Wikipedia rules would be deleted because it is "original work".

Note: Once "original work" has been published on Marspedia, then anybody could put on Wikipedia a link to the Marspedia article, and that might be OK for Wikipedia as it would no longer be original work, and references are usually accepted over there. For those cases where you want to reference it elsewhere, we could arrange for it to become read-only protected.

===No Need to be Notable===

Wikipedia enforces a requirement that all articles about people or organizations must demonstrate why the subject is "notable". There is no such requirement on Marspedia, although there is a general expectation that it should somehow be related to Mars development.

===No Need to be Neutral===

You can advocate positions, but expect to be challenged. Conversely, do not just delete material you do not agree with, but feel free to add a rebuttal.

If you do advocate positions, please do so in a manner that makes it obvious that it is your personal position and not that of Marspedia as a whole. You can do this using the tags <nowiki>'''''{{PersPosArticle}} ~~~'''''</nowiki> or <nowiki>'''''{{PersPosSection}} ~~~'''''</nowiki> which would display something like so:

'''''{{PersPosArticle}} [[User:MikeD|MikeD]]''''' 
'''''{{PersPosSection}} [[User:MikeD|MikeD]]'''''

===Commercial Links are OK===

It is perfectly fine to highlight products or services, including both your own and those of other persons or companies. Just make sure it is relevant.

==Software Capabilities==

Marspedia uses the latest stable version of Mediawiki, so in many respects it is very similar to Wikipedia. At the time of writing this, we were running version 1.11.1 while 1.13alpha was the unreleased development version.

===Interwiki===
Interwiki is now supported between Marspedia and it's sister sites Lunarpedia and ExoDictionary. To use interwiki you just use tags like:

:<nowiki>[[exd:Sandbox]], [[lunarp:Sandbox]], [[marsp:Sandbox]] and [[spacep:Sandbox]]</nowiki>.

These would take you to:

:[[exd:Sandbox]], [[lunarp:Sandbox]], [[marsp:Sandbox]] and [[spacep:Sandbox]] respectively.

Other examples would be:

:<nowiki>[[exd:Azimuth]], [[lunarp:Carbon economy]], [[marsp:Mars Express]] and [[spacep:ISDC_2007]]</nowiki>.

These would take you to:

:[[exd:Azimuth]], [[lunarp:Carbon economy]], [[marsp:Mars Express]] and [[spacep:ISDC_2007]] respectively.

'''The interwiki prefixes on the other sites are identical.'''

===Installed Extensions we admit to===

*CategoryTree
*Cite
*ImageMap
*MathStatFunctions
*ParserFunctions
*SpamBlacklist - Should we admit to having this or will that only encourage the idots to waste their time and sometimes ours
*Spellcheck
*articletocategory
*create
*inputbox

We recently added the footnote capability to Marspedia, so that is now the same.

Other differences:

* Wikipedia has some cool citation templates which we might add
* Wikipedia reflist template is not available i.e. {{reflist}}
* the Wikipedia [citation needed] template is not available: {{Fact|date=March 2007}}.

* [http://www.spencer-tech.com/my_scripts/mp3_player free web mp3 player] is another officially admitted Wiki extension. It will help you to add music files to your web site and allow your visitors to listen to them. It's very easy to install and absolutely free.

Extensions in the pipeline (maybe):

*Graphviz
*TeX Editor (This is really nice but we had to disable it as there seemed to be a security issue with it)
*WikiTeX (Will take quite some time to install, has a plethora of dependencies)

[[category:Help]][[category:Main Page Maintenance]]