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Partilha de conhecimentos para construir ricos, vidas sustentáveis

Appropedia é para soluções colaborativas
in sustentabilidade, tecnologia apropriada e pobreza redução.

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interessado em eficientes fogões a lenha? verifique o Wood Burning Stoves 2.0 DVD set Kickstarter de Paul Wheaton.

(Crowdfunding phase has now ended.) (refresh)

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Tem um dispositivo inovador médica ou e-saúde solução configurações de segmentação em desenvolvimento? ver Inovadoras Organização Mundial da Saúde dispositivos médicos e soluções de saúde em linha para poucos recursos 2013. Fecha 15 de março.

From today's featured article

Marshall McLuhan holding a mirror
There are no passengers on spaceship earth. We are all crew.

Marshall McLuhanW

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Arcata Educational Farm
Organic farming is the form of agriculture that relies on crop rotation, compost, biological pest control, mechanical cultivation, and other techniques using natural processes, to maintain soil productivity and control pests. Organic farming excludes or strictly limits the use of synthetic fertilizers, pesticides, and livestock feed additives. Genetically modified organisms are excluded, and organic standards in Britain and Australia exclude engineered nanoparticles.

"Organic agriculture is a production system that sustains the health of soils, ecosystems and people. It relies on ecological processes, biodiversity and cycles adapted to local conditions, rather than the use of inputs with adverse effects. Organic agriculture combines tradition, innovation and science to benefit the shared environment and promote fair relationships and a good quality of life for all involved..." -- International Federation of Organic Agriculture Movements

Highlighted project

Open_source_3-D_printing_of_OSAT

Open source 3D printers, such as the Rep Rap, are being used to create open source appropriate technologies such as the DremelFuge.

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.

edit  watch  Selected service learning Projects gallery (refresh)

Engr305 Appropriate Technology Projects: Below are selected service learning projects from Engr305 Appropriate Technology, which is a course on appropriate technology at Humboldt State University taught by instructor Lonny Grafman.

Chris's ENGR305 Solar Food Dehydrator

A hybrid, solar food dehydrator  
Compressed earth brick press

An exploration of compressed earth bricks  
Deidre's vertical vegetable garden

Solar powered vertical vegetable garden  
Devan's vertical axis wind turbine

Experimental Vertical Axis Wind Turbine  
Engr305 peanut sheller project

Peanut sheller made from clay and newspaper  
Engr305 pulser pump

A working model of a Pulser pump  
Engr 305 solar learning station

Instructional Solar Learning Station  
ENGR305 windbelt

Testing new materials for prototype windbelts  
Ethanol from organic sugar beets versus refined cane sugar

Determining the cost inputs and energy outputs of small scale ethanol production  

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