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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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Buckminsterfuller.png Today only - Special invite for Appropedians to the Buckminster Fuller Institute Celebration in San Francisco on April 16th. If you are in the San Francisco Bay Area, check it out, this celebration will be quite excellent.


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Rope pump upper construction
Rope pumps. Industrial hand pumps, such as the Indian Mark II, for communal wells donated by development projects often break down after two years. If maintenance costs are the responsibility of the users, then this cost is too high when repairs prove necessary and the pump is left nonfunctional.

An alternative reliable hand pump is needed for communal and private use to supply clean drinking water and irrigation. These pumps will raise the standard of living if they are low cost, reliable and pump water effectively. Efficiency is critical to irrigate a garden in the dry season due to the relatively large amount of water involved. Such gardens provide food and increased income.

Local affordability, maintenance and good pump efficiency are required features. Local affordability means a twenty-to-hundred-fold cost reduction compared to imported industrial goods. Local maintenance is only possible when made with local resources and skills.

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Greywater Ecuador La lagrima purificadora

A detailed greywater system at Centro Orgánico Finca Sarita, an Ecuadorian seed saving center.

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Community action news

Waste hierarchy.png
Apr 16 Reduce, reuse, repair and recycle: Recycling hope for plastic-hungry enzyme [1]

Apr 5 Networks UK: A report from #CTRLshift2018, Rob Hopkins [2]

Apr 3 Can 'Bike Libraries' Fix Chicago's Cycling Equity Gap? [3]>

Mar 28 London news: “People Create Place: Doteveryone’s response to the Smarter London Listening Exercise” by @rachelcoldicutt [4]

Mar 28 Environment quality UK: Deposit return scheme in fight against plastic [5]

Read More...


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Tim Jarvis on his Antasrtic expedition
Thinking is good, but doing is better.

Tim JarvisW
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Hot topics / In the news

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Blog

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.

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ENGR 215 Introduction to Design projects – Spring 2012: Friends of the Dunes: The Spring 2012 semester of Engineering 215 worked with Friends of the Dunes to design and build projects that support the Humboldt Coastal Nature Center at 220 Stamps Lane, Manila, CA.

Spring 2012 ENGR 215 Intro to Design Projects - Humboldt Coastal Nature Center
Solar Powered Trail Lighting System
Solar trail lighting  
Carbon Footprint Wheel
Educational carbon footprint display  
Living Green Roof
Green roof educational model  
Acoustic Panels
Acoustic panels utilizing re-purposed materials  
Living Green Display
Interactive display promoting environmental consciousness  
Rapid Composter
Rapid composting system  
The Stretchbarrow
Hybrid stretcher/wheelbarrow  
The Sandy Cove
Amphitheater constructed of urbanite  
Pump Powered Dune Movement Simulator
Interactive sand dune model  
Beachgrass Baler
Tool to bale beach grass  
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Energy

Solar
Water
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