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Creative Commons Attribution ShareAlike (or CC-BY-SA) is an Open license, or "free license" (where free refers to freedom). That is, it allows anyone to

Every day across the globe, the sun shines down on the earth. The energy in the photons from the sun can be converted to electrical energy. The term for

Appropriate technology (AT) is technology that is designed to be "appropriate" to the context of its use. The most appropriate technologies are: Sustainable

Open access materials can be viewed for free, but generally have other restrictions - for example no commercial use, no derivations, and (in some cases)

Renewable energy comes from resources which are continually renewed by natural processes, such as sunlight, wind, rain, tides, and geothermal heat. Renewable

Error creating thumbnail: File missing Solar hot water describes active and passive solar technologies that utilize the freely abundant solar thermal energy

Appropriate Technology Sourcebook, published by Village Earth, reviews over 1,150 of the best books on Appropriate technology. The complete text of the

Error creating thumbnail: File missing Error creating thumbnail: File missing Poverty is the state of being without adequate life support services. Most

Open edit in a wiki is the most radical form of openness. In Appropedia, pages are generally open edit, so even an anonymous user of the site can click

The word energy derives from the Ancient Greek: ἐνέργεια energeia “activity, operation”, which possibly appears for the first time in the work of Aristotle

Error creating thumbnail: File missing The sun is the source of the vast majority of the energy we use on earth. Most of the energy we use has undergone

Is small still beautiful? We think it is. In an increasingly divided and fragile world, Practical Action aims to demonstrate and advocate the sustainable

Greenhouse redirects here. For information on the greenhouse effect, see Global warming. Error creating thumbnail: File missing Greenhouses are house-like

Sustainable development can be seen as a "best fit" of the built environment to the natural environment. More accurately, it is the process of planning

Error creating thumbnail: File missing The capstone project for Queen’s University 4th Year Mechanical Engineering Class,"Engineering for Sustainable Development"

Open source appropriate technology (OSAT) refers to technologies that are designed in the same fashion as free and open-source software. These technologies

Solar power refers to useful electrical energy extracted from sunlight. Solar power is generally considered to be "Green", renewable, sustainable, and

Composting is the partial decomposition of organic materials by aerobic or anaerobic processes. Composting techniques create moist environments that stimulates

Greywater, grey water or gray water, is water that has been polluted with (non-)biodegradable soaps and detergents. Greywater originates from sinks, baths

The GNU Free Documentation License (GFDL) is a free license originated by the Free Software Foundation which permits a work to be copied, modified, and

See Permaculture wiki for an explanation of how Appropedia works for permaculture. Error creating thumbnail: File missing Error creating thumbnail: File

References

A collaborative book project about the future TheFWD index‎ is the page where you can see the final book! Our process for managing copy and workflow is

The world's need for electricity is increasing everyday. And as we continue to produce this commodity by means that are limited, we are moving closer to

International development– the development of greater quality of life for humans, (i.e developed healthcare means longer life which is greater quality

Error creating thumbnail: File missing Thermosiphoning, also known as thermosyphoning, is considered to be an appropriate technology. This process utilizes

Solar energy means energy from sunlight, in any form. Some forms of solar energy include Electricity - see Solar power. Most commonly this means solar

Error creating thumbnail: File missing This photovoltaic system was designed to power a DC Vaccine Refrigerator at the hospital Centro De Salud in Parras

Error creating thumbnail: File missing Welcome to our straw bale greenhouse. The following page will take you with us on our greenhouse building adventure

Passive solar design is the harnessing or directing of solar energy through non-mechanical, non-electrical means. It is a key principle of green building

Most solar cookers work on basic principles: sunlight is converted to heat energy that is retained for cooking. Sunlight is the "fuel." The requirements

written by Appropedia user J.M. Pearce J.M. Pearce, Open-Source Lab: How to Build Your Own Hardware and Reduce Research Costs, Elsevier, 2013. ISBN: 9780124104624

Appropriate technology refers to technology that is suited to its context. It is not only technology that needs to be appropriate. Rather, the world needs:

Farming is the cultivation of animals, plants, fungi and other life forms for food, fiber, and other products used to sustain life. Agriculture is the

Error creating thumbnail: File missing The objective of this project is to create a solar cooker out of local invasive species and waste materials. We

Energy efficiency or energy conservation is the effort of reducing the amount of energy required to provide products and services. Energy conservation

Kerosene lamps pollute the air, which can lead to health problems Kerosene lamps lose a lot of energy while producing heat Glow bulb lamps lose a lot of

Error creating thumbnail: File missing The paraboloid is an interesting shape with some amazing qualities. It has the power to concentrate light, electronic

Africa is the Earth's second-largest (about 30,221,532 sq km / 11,668,545 sq mi) and second most populous (about 900 billion people as of 2008W) continent

The purpose of this document is to provide a brief overview of the available photovoltaic systems engineering simulation software available. Some programs

Error creating thumbnail: File missing As a student in Lonny's Engr. 305 class, I carried out a project that involved troubleshooting, repairing, testing

Bob and Cody have modified the off-grid photovoltaic system at the Arcata Educational Farm. The system previously in place consisted of the following components:

UTC in Mexico built a Solar Learning Station with help and instruction from Lonny. We have constructed a local version of the learning station to be used

The following tutorial will cover topics related to the theory and hardware used to measure the available solar resource at a site, and methods for translating

This project was replaced by Bayside Park Farm solar hot water. Error creating thumbnail: File missing The Arcata Educational Farm is a CSA (Community-Supported

Error creating thumbnail: File missing This photovoltaic project was designed to provide electricity to light a home at a natural building institute in

An open license or free license (licence in Commonwealth English) is the legal statement that allows free content and free software to be "free". This

Organic agriculture is a production system that sustains the health of soils, ecosystems and people. It relies on ecological processes, biodiversity and

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