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The Projects Portal

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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Selected page

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.

3. One piece of sheet metal.

  • For the final bond, use the tip of an axe or chisel for cutting the sheet metal from an oil drum for example.
  • Width 3x the stick diameter; Length 6x the stick diameter.

4. Some small, ~1 cm, nails for the first connection. 5. Some larger, ~2.5 cm, nails for the final connection.

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Things you can do

Appropedia is a wiki, so you can edit and share information and collaborate with others to lighten our ecological footprint and live richly, in harmony with our environment.

You can start contributing after you create an account or log in if you have an existing account.

Appropriate technology things you can do
Parabolic basket and tin can solar cooker

Creating a solar cooker out of local invasive species and waste materials in order to pasteurize water and be an alternative to the use of fossil fuels for cooking food.

This OSAT has been designed but not yet tested - use at own risk.
This OSAT has been modeled.
This OSAT has been prototyped.
This OSAT has been verified by: Name of organization.
This OSAT has been deployed by: Whom at least: How many times in: Where.

You can help Appropedia by contributing to the next step in this OSAT's status.

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Projects gallery

AEF greywater: Recreating a failing greywater marsh at the Arcata Educational Farm.  
Aleiha's parabolic solar cooker: A very hot parabolic solar cooker.  
Argentina photovoltaic: A small photovoltaic system for a natural building/permaculture institute in Central Argentina.  
Backpack frame bike trailer: Big Russ towing one of the least-expensive bike trailer designs out there built from an old backpack-frame.  
Bike snow plow: A retractable snow plow for a bike.  
Biodigester Effluent Fertilizer Quality Testing with IRRI, in Mexico city  
Biodigester follow up and maintenance with IRRI in Puebla, Mexico.  
Bloomfield Cobb Bench: A cobb bench at Bloomfiled Elementary School in Arcata, CA.  
Briceland PV: 960W photovoltaic installation in Briceland, CA.  
CCAT's Vermicomposting Bin: Beautiful, pentagonal, Douglas Fir worm bin.  
CCAT's Living Roof: A living roof for CCAT's Earthen Oven.  
Ceiling insulation out of recycled Tetra pack at Pedregal in Oaxaca, Mexico.  
Chris's ENGR305 Solar Food Dehydrator: A hybrid solar food dehydrator, that adheres to as many of the principles of modern food dehydration.  
DIF Adobe Senior Center: Building an Adobe senior center in Parras, Coahuila México.  
Ecological dry toilets at Pedregal in Oaxaca, Mexico  
Ersson rainwater harvest and purification (original): Rainwater catchment and purification system, at less than $1500  
Greywater Ecuador La lagrima purificadora: Greywater in an Ecuadorian seed saving center.  
Hotel Perote Solar Pool Heating System: Solar hot water system for a hotel pool in Parras, Coahuila México.  
Hydroponic Vertical Garden at Sembradores Urbanosin Mexico City  
Kiva’s straw bale greenhouse: Year round veggies in a homemade, just under the permitting limit, strawbale greenhouse.  
Micro filter dams at Pedregal in Oaxaca, Mexico  
Mini urban greenhouse for seed germination in Mexico City  
Occidental greywater: A five stage, activated sludge greywater system in drums.  
Open Solar Outdoors Test Field
Open source photovoltaic
systems performance data  
Openstreetmap
Copyright free
Map Making  
Photovoltaic system at St. Jude's church: St. Jude's Church, Cupertino, CA  
Polyculture Planting at Sembradores Urbanos in Mexico City  
Rainwater catchment at Isla Urbana in Mexico City.  
Rainwater catchment at Pedregal in Oaxaca, Mexico  
Rainwater quality testing with Isla Urbana in Mexico City  
Raised Beds at Sembradores Urbanos in Mexico City  
Reforestation at Pedregal in Oaxaca, Mexico  
Solar Charged Lawnmower: Converting a very used gas power lawnmower into a solar charged, low emission, almost silent, lawn cutting machine.  
Sunny Brae Yurt: Building yurt to brave Humboldt's winter. Arcata, CA.  
Terraces and Ditches at Pedregal in Oaxaca, Mexico  
Tire shingles: Roof shingles made from old racing slicks.  
UABJO Demonstration Wetland Wastewater Treatment, Reclamation, and Outreach in Oaxaca, Mexico.  
UTC Solar Distiller: Building a prototype solar distiller in Parras, Coahuila México.  
Worm bin at Sembradores Urbanosin Mexico City  
Zaragoza Solar Hot Water System: Solar hot water system for a residence in Parras, Coahuila México.  
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