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Sharing knowledge to build rich, sustainable lives.

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in sustainability, appropriate technology and poverty reduction.

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Windmillprint-crop.jpg As part of a 3-D printing class, graduate students will be designing printable open-source appropriate technology for sustainable development. If you want a technology designed to be 3-D printed, post your ideas here. Chosen designs will be made and open-sourced for the global community. Deadline Nov. 13, 2014


You can have a Green Christmas.
You can have a Green Christmas. Often the best time of year for catching up with family and friends, it's also the biggest time of spending - on presents, food, alcohol, parties and holidays. Unfortunately, all of our spending and consumption results in significant environmental damage and carbon pollution. However, you don't have to be a scrooge to reduce your carbon footprint at Christmas. Here are tips for a more sustainable festive season.

Buy a service, not a product: To reduce embodied carbon pollution and water consumption, think about buying someone a service - say a voucher for a massage, rather than a massaging appliance. Vouchers for other services, (such as gardening or housecleaning) or film and theatre tickets are also good. Beware gifts that will increase the recipient's motor travel.

Buy gift vouchers: Gift vouchers are a good thing for the environment. People use them to get exactly what they want. And they can use its value for a purchase in the store at any time after christmas. Make sure the validity is at least 6 months or a year, so that recipient will not forget to use it before it expires. (more tips follow)

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.

Wangari Maathai in 2006
As long as there is no trust and confidence that there will be justice and fairness in resource distribution, political positioning will remain more important than service.

Wangari Maathai W, environmental activist, first African woman to receive the Nobel Peace Prize in 2004
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)

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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  4. Patsari Cookstove Construction Manual (in Spanish)
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  8. Excubator
  9. Design of Multi-Junction Photovoltaic Cells Optimized for Varied Atmospheric Conditions
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