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Sharing knowledge to build rich, sustainable lives.

Appropedia is for collaborative solutions
in sustainability, appropriate technology, poverty reduction, and permaculture.

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Finished Vermicomposting System
CCAT's Vermicomposting Bin. I am very excited to be posting directions for building your very own home vermiculture bin! The methods employed will produce a bin appropriate for a household of 3-5 people and should last a number of years if constructed properly. There of course are many types of bin designs out there and I wanted the creative opportunity to design my own. In looking for ideas in a gardening magazine, I noticed a pentagon shaped planter for gardens whose shape I really liked. A pentagon is also practical because compost is less likely to get stuck in the corners as often happens in normal square shaped boxes, preventing the organic materials from cycling properly. I decided to make a two-part stackable bin so that using the finished compost would be easier. Once the compost is processed it is easy to take off the top section, dump the compost in the garden, and put it on top to be filled again. The partitioned design is also improves aeration to speed up the composting process. Aeration is also provided by the holes drilled in the sides of the bin. The bottom of each bin section is finished with wire mesh to keep the compost in place. The holes of the wire mesh are large enough to allow worms and microbes to enter the system and speed up decomposition. The top is simple plywood cut to size with a brass handle and L-brackets to keep the lid in place. The bin was lastly finished with natural organic linseed oil as a sealer for endurance in the elements and general durability. I hope you enjoy!
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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.

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Community action news

May 2 Climate news: Judge Sides With Kids Suing The Government Over Climate Inaction: ‘These Kids Can’t Wait’ [1]

Teocaltiche.jpg
Apr 21 Mexico City is crowdsourcing its new constitution using Change.org in a democracy experiment [2]

Apr 21 San Francisco to require rooftop solar on all new buildings [3]

Apr 20 US news: Want to Hire a Worker-Owned Co-op? There’s an App for That [4]

Apr 20 A snapshot of Transition in ... Japan [5]

Read More...


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Rachel Carson
The human race is challenged more than ever before to demonstrate our mastery, not over nature but of ourselves.

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Hot topics / In the news

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Blog

The Vitruvian Man is a world-renowned drawing created by Leonardo da Vinci circa 1487.
Those who have health have hope, and those who have hope have everything.
Arabian Proverb

An individuals health greatly influences their ability to support themselves, provide for their family, and contribute to the community. Because of this, access to care and the health of a community is central to any development effort.

Unfortunately, health care is poorly distributed around the world. Southern hemisphere countries are much more likely to suffer from lack of access to care. One aspect of this disparity is the health technology gap between developed and developing nations. While developed countries continue to invest in high technology equipment, developing countries often lack the most basic health care tools. Appropriate Medical Technologies (AMT's) can help communities, governments and development agencies create simple, low-cost, and culturally appropriate responses to health care problems.

The use of appropriate technologies is less common in healthcare than other fields such as construction or agriculture. However, there is significant crossover between the public health field and the water and sanitation fields, areas that are more familiar with appropriate technologies. Appropriate technology is often used to develop mobility and rehabilitation equipment as well as tests used to diagnose diseases.

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ENGR 215 Introduction to Design projects – Spring 2010: RCEA: Two labs of the Spring 2010 semester of Engineering 215 worked with the Redwood Coast Energy Authority to build energy education boxes for classrooms in Humboldt County. These boxes are designed for different K-12 grade ranges and cover one of three topics: energy conservation, renewable energy or climate change.

Spring 2010 ENGR 215 Intro to Design Projects - RCEA
The Power of Wind
Educates students on the basics of wind power  
The Rad Triad
A Chutes and Ladders-like board game, a popup book and a sing-a-long song  
Weather Warnings
Teaches climate change through a movie, three stations, and a worksheet  
Modeling Renewable Energy
Educates students on many types of renewable energy  
Bust-A-Watt
Teaches energy conservation through activities, home assessments, and an art assignment  
Seas of Change
Educates students about the polar ice caps melting effects of climate change through a hands-on model  
Energy in a Cinch
Teaches about renewable energy through the use of a Windbelt  
CAN YOU WorKIT
Students assemble and operate a hand crank electrical generators  
Climate Crusaders
A Cap-and-Trade game and a model greenhouse gas experiment  
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Energy

Solar
Water
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