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Sharing knowledge to build rich, sustainable lives.

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

You are welcome 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 300,407 edits and uploaded 23,506 files.
Browse our categories or all 6,472 articles.

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Announcements — more

Windmillprint-crop.jpg Yes it is possible to print a windmill with a 3D printer for a fraction of the cost of manufacturing one conventionaly. Learn more about open-source 3-D printing of open source appropriate technology for sustainable development.


This is what it looks like when finished.
Welding wood. This is a technique to join wood using scrap tin, such as that from a used can. Needed materials include:

1. Two sticks of wood to be joined.

  • Make sure the wood is in good condition where the connection is to be made. It should be clean, no bits of bark or loose paint, and no knots, as they are too hard for nails.

2. Two pieces of thin tin.

  • For the first bond, use a knife for cutting the tin from a small can for example.
  • Length and width equal to the stick diameter. (more steps follow)
Solar Charged Lawnmower

Converting a very used gas power lawnmower into a solar charged, low emission, almost silent, lawn cutting machine.

Hansen at the Our Opportunity student summit in March 2009
A global tipping point will be reached in 10 years [ 2016 ] if levels of greenhouse gases like methane and CO2 are not reduced. Global warming at this point becomes unstoppable.

James HansenW
Sharing knowledge to build rich, sustainable lives.
Appropedia is the site for collaborative solutions in sustainability, poverty reduction and international development through the use of sound principles and appropriate technology and the sharing of wisdom and project information. It is a wiki, a type of website which allows anyone to add, remove, or edit content. Registration is encouraged but not required for contributors.

Appropedia has been described as an "appropriate technology wiki," but it is much broader than that - it is a green wiki, and a wiki for all matters of international development and aid. But most importantly, Appropedia is an open site for stakeholders to come together to find, create and improve scalable and adaptable solutions. For more about our motivation, see Appropedia:Mission.

To create a new project page, first browse the project articles and subcategories below for examples and check for possible collaboration opportunities, such as articles similar to what you're considering writing. If you are looking for ideas for your own project, check out our suggested projects. It is highly encouraged to tag your projects with their status -- you can do this with a few templates. Be Bold!

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ENGR 215 Introduction to Design projects – Fall 2005: RCEA: The Fall 2005 semester of Engineering 215 worked with RCEA to develop educational displays for the general public.

Fall 2005 ENGR 215 Intro to Design Projects - RCEA
A Bright Idea
To create an interactive, educational display that demonstrates the importance of electrical energy conservation  
Biggest Little Thing
To design an interactive display promoting electrical energy conservation  
Thermal Curtain
To educate people about thermal energy conservation  
Know Your Load
To educate people about phantom loads on electrical devices  

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Selected categories

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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. Applications of Open Source 3-D Printing on Small Farms
  2. Gisborne Montessori School
  3. White Oak guild
  4. Methodology for 3D-Printed Part Design
  5. BiliSol Phototherapy System
  6. Zane Middle School solar station
  7. Zane Middle School streamline
  8. Zane Middle School animal visistation center
  9. ZaneMiddleSchool animalVisistationCenter Chickengie
  10. ZaneMiddleSchool AnimalVisistationCenter Chickengie

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. Animals
  2. Organic waste
  3. Nutrition
  4. Ecosystem
  5. Human development
  6. Clay
  7. Environmental science
  8. Appropriate energy overview
  9. Building management systems
  10. Open sustainability

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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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!

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