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<big>''Sharing knowledge to build rich, sustainable lives.''</big>
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{{:Welcome to Appropedia/box-header|<big>''Sharing knowledge to build rich, sustainable lives.''</big>|:Welcome to Appropedia/Intro|titleforegroundlink=white}}
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{{:Welcome to Appropedia/box-header|<big>Announcements &mdash; [http://blogs.appropedia.org/tag/announcements/ ''more'']</big>|:Welcome to Appropedia/Announcements|titleforegroundlink=white}}
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|<center><big><big>'''New Kiswahili Content'''</big>
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Appropedia has over 50 pages in [[Kiswahili]]! If you have any questions, comments or content, please contact our Kiswahili Translation Coordinator, [[User:Kili|Chris Sam]], at kiswahili[[Image:atsymbol.png]]appropedia[[Image:dot.png]]org.</big>
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Appropedia is the site for collaborative approaches to '''sustainability''', '''poverty reduction''' and '''international development'''. Learn more at our [[Appropedia:Mission|Mission]] page.
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The material here is free for your use. So far contributors have made [[Special:Recentchanges|{{NUMBEROFEDITS}} edits]] and uploaded [[Special:Newimages|{{NUMBEROFFILES}} files]].  Search or browse our [[Appropedia:CategoryTree|categories]] or [[Special:Allpages|all '''{{NUMBEROFPAGES}}''' pages]]. 
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; [[Three Cups of Tea]]
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; [[Beyond Zero Emissions]]
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; [[Chris's ENGR305 Solar Food Dehydrator]]
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| align=center style="color: #EEEECC;background:#818CA5;border-right:2px solid #818CA5;border-top:2px solid white;padding-left: .9em;padding-right: .9em;" | '''Construction zone - correct mistakes & [[Appropedia:Flagging spam|flag spam]] as needed.'''
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| width=50% style="color: #EEEECC;background:#818CA5;border-right:2px solid white;border-top:2px solid white;padding-left: .9em;padding-right: .9em;" | '''Newest Articles''' <sup>''[[Special:Newestpages|more]]''</sup>
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|width=50%  style="color: #EEEECC;background:#818CA5;border-right:2px solid #818CA5;border-top:2px solid white;padding-left: .9em;padding-right: .9em;"| '''Wanted Pages''' - click to add info <sup>''[[Special:WantedPages|more]]''</sup>
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New pages being developed:{{Special:Newestpages/-/10}}
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<small>Note: Be aware that Appropedia's newest pages may not yet comply with [[:Category:Appropedia policy|our policies]].</small>
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|valign="TOP" style="background:#CCFFCC;border-right:2px solid #818CA5;border-bottom:10px solid #818CA5;padding-left: .9em;padding-right: .9em;"| [[Image:Under construction orange.jpg|Under construction|right|80px]]
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Create a new page:
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# [[Rural communities]]
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# [[Pollution]]
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# [[Economic development]]
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# [[Coal]]
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# [[Slums]]
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# [[Clay]]
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# [[Disease]]
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# [[China]]
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<small>These '''[[A:Redlinks|<font color=red>red links</font>]]''' are invitations for you to contribute your knowledge.</small>  
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<small>Or [[Help:Creating a page|'''create a page''']] on the topic of your choice.</small>  
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{{:Welcome to Appropedia/box-header|<big>[[Community action for sustainability|Community action news]]</big>|:Welcome to Appropedia/CAnews||titleforegroundlink=white}}
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| style="background:#D9D2A9;border-right:2px solid #D9D2A9;border-bottom:10px solid white;padding-left: .9em;padding-right: .9em;" |<p>We want your projects, current works, observations and wisdom! Please see our [[Help:Contributing content|Contributing content]] page. You can also enrich existing articles by clicking on "edit" at the top of the page or section.  Appropedia's software is robust and forgiving, so '''[[A:BOLD|Be Bold]]''' and contribute!</p>
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More info on helping out is at our [[Appropedia:Community portal|Community Portal]] page. Ask questions or leave comments at the [[Appropedia:Village pump|Village Pump]] page. You can also check out the Appropedia [[Appropedia:Mailing lists|mailing lists]]. [http://groups.google.com/group/appropedia-community Appropedia community] and [http://groups.google.com/group/tech-for-sustainability-wikis Site tech].</p>
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{{Lang|[[Selamat datang di Appropedia|Bahasa Indonesia]] - [[Welcome to Appropedia|English]] - [[Bienvenido a Appropedia|Español]] - [[Willkommen bei Appropedia|Deutsch]] - [[Bienvenue sur Appropedia|Français]] - [[Benvenuto su Appropedia|Italiano]] - [[:Category:Português|Português]] - [[Karibu Appropedia|Kiswahili]]}}
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Latest revision as of 09:10, 20 January 2016

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Sharing knowledge to build rich, sustainable lives.

Appropedia is for collaborative solutions
in sustainability, appropriate technology, poverty reduction, and permaculture.

You are encouraged to add to and edit Appropedia -
your site to find, co-create and improve the solutions we need. Our vision and mission.

Contributors have made 396,630 edits and uploaded 32,010 files.
Browse our categories or all 8,352 articles.

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Announcements — more

To catch the rain cover.png Rainwater catchment around the world. Get a paperback on Amazon or free digitally at http://www.tocatchtherain.org.


edit  watch  Selected page (refresh)
Dremelfuge
Open source 3-D printing of OSAT. There have been a number of open source 3D printers, such as the RepRap developed. The basic idea for this project is to use them as tools to create OSAT in the field to help the goals of sustainable development. Prices on 3D printers are dropping rapidly.

An example of how these 3D printers can be used to meet these goals is the DremelFuge. The Dremelfuge is brilliant Open Source Hardware project developed by Cathal Garvey in Ireland. The DremelFuge is a printable rotor for centrifuging standard microcentrifuge tubes and miniprep columns. It is at least 10 times less expensive than a standard centrifuge and can be used by field workers in doing things like blood tests, but also by DYI biologists and educators. It requires industry standard 1.5ml/2ml Eppendorf/Microcentrifuge tubes.

  • Used with a drill at 3000 RPM, the Dremelfuge will deliver over 400g, enough to comfortably spin down Miniprep samples (proven personally). It will likely achieve acceptable results at lower speeds, too.
  • Used at 10krpm, on a Rotary tool for instance, a Dremelfuge should deliver over 4400g, more than enough to spin down bacterial cells.
  • At 16krpm, Dremelfuge matches commercial centrifuges.
  • On a Dremel 300, a maximum speed of 33krpm equates to a force of over 50,000 times earth's gravity, which puts it into so-called "Ultracentrifuge" territory. The latest version (as printed by Shapeways) has successfully spun tubes at this speed.
edit  watch  Highlighted project (Book) (refresh)
Open_source_3-D_printing_of_OSAT

Open source 3D printers, such as the Rep Rap, are being used to create open source appropriate technologies such as the DremelFuge.

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Community action news

Greywolf1.jpg

May 6 Biodiversity news: Humans 'threaten 1m species with extinction' [1]

May 6 Reduce, reuse, repair and recycle: Bringing the power of plastic recycling to the people [2]

May 2 Mexico: A new, collective business model for traditional crafts in Oaxaca [3]

May 1 UK Climate news: UK Parliament Declares Environment and Climate Emergency, Claire Mitchell [4]

May 1 Bank On San Francisco: Supporting community financial empowerment [5]

Read More...


edit  watch  Selected quote
William Cullen Bryant
A breeze came wandering from the sky, light as the whispers of a dream; He put the overhanging grasses by, and softly stooped to kiss the stream, The pretty stream, the flattered stream, The shy, yet unreluctant stream of wind.

William Cullen BryantW
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Hot topics / In the news

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Blog

A windmill is used to power a water pump which fills a swimming pool.
Appropriate technology (AT) is technology that is designed with special consideration to the context of its use - including environmental, ethical, cultural, social, political, and economical aspects of the community it is intended for. With these goals in mind, AT proponents claim their methods require fewer resources, are easier to maintain, and have less of an impact on the environment compared to techniques from mainstream technology, which they contend is wasteful and environmentally polluting.

The term is usually used to describe simple technologies proponents consider suitable for use in developing nations or less developed rural areas of industrialized nations. This form of "appropriate technology" usually prefers labor-intensive solutions over capital-intensive ones, although labor-saving devices are also used where this does not mean high capital or maintenance cost. In practice, appropriate technology is often something described as using the simplest level of technology that can effectively achieve the intended purpose in a particular location. In industrialized nations, the term appropriate technology takes a different meaning, often referring to engineering that takes special consideration of its social and environmental ramifications.

edit  watch  Selected service learning Projects gallery (refresh)

ENGR 215 Introduction to Design projects – Spring 2012: Friends of the Dunes: The Spring 2012 semester of Engineering 215 worked with Friends of the Dunes to design and build projects that support the Humboldt Coastal Nature Center at 220 Stamps Lane, Manila, CA.

Spring 2012 ENGR 215 Intro to Design Projects - Humboldt Coastal Nature Center
Solar Powered Trail Lighting System
Solar trail lighting  
Carbon Footprint Wheel
Educational carbon footprint display  
Living Green Roof
Green roof educational model  
Acoustic Panels
Acoustic panels utilizing re-purposed materials  
Living Green Display
Interactive display promoting environmental consciousness  
Rapid Composter
Rapid composting system  
The Stretchbarrow
Hybrid stretcher/wheelbarrow  
The Sandy Cove
Amphitheater constructed of urbanite  
Pump Powered Dune Movement Simulator
Interactive sand dune model  
Beachgrass Baler
Tool to bale beach grass  
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Selected categories

Topics
Energy

Solar
Water
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Construction zone — correct mistakes & flag spam as needed

Newest articles more Wanted pages - click to add info more
Under construction
New pages being developed:
  1. Blackberry
  2. Lonicera caerulea
  3. Mechanical Properties and Applications of Recycled Polycarbonate Particle Material Extrusion-Based Additive Manufacturing
  4. Open Learning Planet
  5. Fruit and nut harvesting sheet
  6. Global Sharing Week
  7. Open Source Completely 3-D Printable Centrifuge
  8. Computer vision based real-time 3D printing analysis
  9. Mechanical Properties of Ultraviolet-Assisted Paste Extrusion and Postextrusion Ultraviolet-Curing of Three-Dimensional Printed Biocomposites
  10. Computer vision and macine learning background

Note: Appropedia's newest pages may not yet comply with our policies. Page titles in italics are "redirects," often created when moving a page.

Under construction

Create a new page:

  1. Nutrition
  2. Bacteria‏‎
  3. Human development
  4. Environmental science
  5. Open sustainability
  6. New Urbanism‏‎
  7. Building management systems
  8. Science‏‎
  9. Microgeneration
  10. Environmental design

These red links are invitations for you to contribute your knowledge.

Or create a page on the topic of your choice.

Newest files - images and documents that can be added to pages more

Note: Appropedia's newest files may not yet comply with our policies.

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Please help Appropedia grow!

We want your projects, current works, observations and wisdom! See Contributing content. Improve articles by clicking "edit" at top of the page or section. Our philosophy is: Be Bold and contribute!

Questions? Comments? Visit the Village Pump. Also discuss Appropedia and related topics over on the Permies permaculture forums.

Find us on Facebook, Pinterest, and Twitter. Check our Flickr images and YouTube videos.

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