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Partilha de conhecimentos para construir ricos, vidas sustentáveis

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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

Paul Polak presenting at the Cusp Conference 2008, Chicago, IL
I hate books about poverty that make you feel guilty, as well as dry, academic ones that put you to sleep. Working to alleviate poverty is a lively, exciting field capable of generating new hope and inspiration, not feelings of gloom and doom. Learning the truth about poverty generates disruptive innovations capable of enriching the lives of rich people even more than those of poor people.

Selected page...

Yeast Cakes from Hops
Yeasts for Baking. Generally when one mentions yeast, aromatic loaves of fresh homemade light bread come to mind. And so they should. Aside from acting as a leavening agent in bakery products, yeast is also the ingredient responsible for the tantalizing aroma that arises during baking.

Though probably today the most commonly known and used are store-bought packages of dried yeast, there are several other different kinds. The recipes that follow show two examples of different ways to make yeast--dry yeast cakes made from hops and an everlasting yeast "starter"--and also how the yeasts are used in making bread.

The dry yeast cakes are made in part by boiling the blossoms of the hop vine. These flowers contain a fragrant yellowish oil called lupulin. The use of this oil as a preservative in beer and as a narcotic drug originated in Germany before Charlemagne. Since then its use has become widespread and the vine cultivated in other nations, including America.

Highlighted project

CCAT natural paint project

Homemade house paints - exposed, exploited, examined and explained.

Bicycle wheel
Transport. According to the Appropriate transport manual, sustainable transportation is a strategy for the flow of people and goods across the Earth that meets the needs of the present without compromising the ability of future generations to meet their own needs. Transportation accounted for 32.6% of US green house gas emissions in 2005. In addition to the widely publicized environmental consequences of driving automobiles, it is also socially and economically costly:
  • Land use: Parking and roads use valuable land resources.
  • Transportation equity: Driving, with all of its expenses, costs the average U.S. household $7,000 per year per vehicle.
  • Economics: Most of the money spent on driving leaves a local economy, weakening it.
  • Community: Travelers outside of their cars interact more with their physical environment and each other.
  • Safety: The presence of pedestrians and cyclists make our neighborhoods safer from crime. Conversely, 42,000 Americans are killed in car accidents every year.
  • Health: Increasingly, Americans are suffering from weight-related illnesses. This is partly attributable to the decline in active transportation use and availability.

Building and encouraging alternatives to the single-occupant vehicle, or, for short "alternative transportation," is imperative. Some alternative transportation advocates have taken to using the term, sustainable transportation, instead of the previous, widely-used "alternative transportation" term to avoid sidelining their interest from the mainstream.

Many efficient, practical, and inexpensive sustainable transportation technologies already exist, meaning activism, policy work, and planning research is most often more crucial to developing sustainable transportation than technology development.

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.

Air Ship Air City rooftop greywater filtration

A rooftop greywater filtration system  
Aleiha's parabolic solar cooker

Parabolic Solar Cooker  
Amal's ethanol still

A valved reflux ethanol still  
Backyard Biodigester

A biodigester converting organic waste to a fuel source  
Bike Rodeo bicycle blender

A kid's bike blender for Rio Dell Community Resource Center  
Bike trailer

A bike trailer from a converted baby stroller  
Blue ox earthen oven

Blue Ox earthen oven  
Bottoms strawbale earthen plaster

Earthen plaster and natural paint recipes  

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From Appropedia newest content:

  • ... that it is not known how the Paris Codex (pages pictured), one of only three surviving pre-Columbian Maya books, came to be in the collection of the Bibliothèque Imperiale in Paris in the 19th century?
  • ... that Henry Seidu Daanaa is the first blind person to be called to the Ghana Bar?
  • ... that the wheatbelt shrub Persoonia coriacea can have naturally twisted leaves?
  • ... that baseball announcer Shelby Whitfield wrote a book titled Kiss It Goodbye that helped prompt the Federal Communications Commission to investigate the ethics of sports broadcasting?
  • ... that the Muslim conquest of Sicily lasted from 827 to 902 AD?
  • ... that the Gustav Adolfs Kyrka in Liverpool was W. D. Caroe's first independent commission to design a church?
  • ... that when Charles O'Rear took a photograph of a green, lush hillside near Napa Valley, he did not expect it to be "the most viewed image of the world"?
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