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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 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 345,275 edits and uploaded 27,420 files.
Browse our categories or all 7,422 articles.

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Aprologo-old.png As we approach our ten-year anniversary, we are looking at how best to support Appropedia in the next ten years. Please share your thoughts with us on the idea of appointing an Executive Director.


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Rope pump upper construction
Rope pumps. Industrial hand pumps, such as the Indian Mark II, for communal wells donated by development projects often break down after two years. If maintenance costs are the responsibility of the users, then this cost is too high when repairs prove necessary and the pump is left nonfunctional.

An alternative reliable hand pump is needed for communal and private use to supply clean drinking water and irrigation. These pumps will raise the standard of living if they are low cost, reliable and pump water effectively. Efficiency is critical to irrigate a garden in the dry season due to the relatively large amount of water involved. Such gardens provide food and increased income.

Local affordability, maintenance and good pump efficiency are required features. Local affordability means a twenty-to-hundred-fold cost reduction compared to imported industrial goods. Local maintenance is only possible when made with local resources and skills.

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CCAT's Vermicomposting Bin

Build your own Vermicomposting System!

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Community action news

Parc des Buttes.jpg
Dec 7 Pollution: Paris makes public transport free for second day [1]

Dec 3 Light of Hope in the Middle of the Crisis: Solar Power to Light Up Syrian Refugee Camp in Jordan [2]

Dec 3 France: Ce village français anticapitaliste et 100 % autonome a tout compris ! [3]

Dec 2 Environment quality: Four of world's biggest cities to ban diesel cars from their centres [4]

Dec 2 Sydney students pioneer Australian-first solar apartment project [5]

Read More...


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Henry David Thoreau
For it matters not how small the beginning may seem to be: what is once well done is done forever.

Henry David ThoreauW
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Hot topics / In the news

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Blog

Aleiha's parabolic solar cooker
In physics, energy is an indirectly observed quantity. It is often understood as the ability a physical system has to do work on other physical systems. Since work is defined as a force acting through a distance (a length of space), energy is always equivalent to the ability to exert pulls or pushes against the basic forces of nature, along a path of a certain length.

Sustainable energy is the provision of energy that meets the needs of the present without compromising the ability of future generations to meet their needs. Sustainable energy sources are most often regarded as including all renewable energy sources, such as hydroelectricity, solar energy and power, wind power, wave power, geothermal energy and power, biomass fuel and energy, and tidal power. It usually also includes technologies that improve energy efficiency.

While many renewable energy projects are large-scale, renewable technologies are also suited to rural and remote areas, where energy is often crucial in human development. As of 2011, small solar photovoltaic (PV) systems provide electricity to a few million households, and micro-hydro configured into mini-grids serves many more. Over 44 million households use biogas made in household-scale digesters for lighting and/or cooking, and more than 166 million households rely on a new generation of more-efficient biomass cookstoves.

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The Parras Summer Program, in Parras,W, Mexico is a summer immersion in Appropriate Technology, globalization and Spanish language and culture. See the Parras Invitation for more information.

Most of the Parras2005 group near Perote  
Most of the Parras2006 group near Perote  
Most of the Parras2007 group farming  
Most of the Parras2008 group near Perote  
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Selected categories

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Energy

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

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Under construction
New pages being developed:
  1. Quick-carrying-handle
  2. Open source malaria
  3. Kijenzi Printer
  4. Raspberry Pi Control and Wireless Interface
  5. Aid For Tying Fish Hooks
  6. Hot end holder with 3 fans
  7. Upgraded Spool Holder
  8. Sanctuary Solar Food Dehydrator
  9. Inside Corner Trowel
  10. Open-Source 3D Printed Surgical Retractors

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  1. Nutrition
  2. Bacteria‏‎
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