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"The Ethical Filament Foundation believes that there is an opportunity to create an environmentally friendly and ethically produced filament alternative to meet the needs of the rapidly growing 3D Printing market. We also believe that by doing this we could potentially open up a new market for value added products that can be produced by waste picker groups in low income countries."

Medical diagnosis by salad spinner

This paper showed how academics can benefit by using Appropedia to do open source research in sustainability.

A RecycleBot is a waste plastic extruder that creates 3-D printer filament from waste plastic and natural polymers.

As the solar photovoltaic (PV) matures, the economic feasibility of PV projects is increasingly being evaluated using the levelized cost of electricity (LCOE) generation in order to be compared to other electricity generation technologies. Unfortunately, there is lack of clarity of reporting assumptions, justifications and degree of completeness in LCOE calculations, which produces widely varying and contradictory results.

There have been a number of open source 3D printers, such as the Rep Rap 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.

This project details an open-source colorimeter, which is made from open source electronics and 3-D printable components. This is part of a larger project to reduce the cost of scientific equipment using open-source hardware.

Just as the power of the open-source design paradigm has driven down the cost of software to the point that it is accessible to most people, the rise of open-source hardware is poised to drive down the cost of doing experimental science to expand access to everyone.

the project was a success. The first thing that we noticed was that the air circulation is excellent. We never had a problem getting enough air into the fire or with having smoke back out of the combustion chamber. This makes starting a fire very easy. Also, we were happy to see that there were hardly any ashes left over. The wood burned hot and combusted completely. Although the top of the stove gets hot when the fire is burning fast, the vermiculite does a very good job of insulating the bottom part. The lower half of the stove never got too hot to touch and the very base never even got warm.

It's a lot of fun hauling cargo around on a bike. A bike trailer can make a bicycle more practical for transporting groceries, laundry, friends, etc. One of the least-expensive bike trailer designs out there, all that is needed to build this backpack-frame bike trailer is an old external-frame backpack, 18 feet of metal conduit, and some other hardware (see materials).

The following page will take you with us on our greenhouse building adventure. We will discuss the process, what worked best and did not work, problems we had, how much time it took to build, and the money spent on the project. Over all we hope that this is a fun and comprehensive look at what we did to make this project come together. The reason that we chose to build a straw bales greenhouse is that both Scott (my building partner) and I would like to get into alternative building as a career and we thought that this would be a good place to start and learn from.

The original goal was to produce a solar dehydrator that had an upfront cost similar to a conventional dehydrator, but used less industrialized materials in addition to harnessing the sun's energy, which reduces the energy impact associated with conventional food dehydration (discussed later).

The plan described here is for an 8 cubic meter digester. It can produce up to 1,000 Pesos[3]/month of biogas from 80L/day of pig manure.

All Hexayurt Project materials on this page placed into the public domain in accordance with this legal statement and by adding to these pages your release your edits under those terms. Newsflash: we now have fire test data on R-MAX / Tuff-R. .