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Windmillprint-crop.jpg Yes it is possible to print a windmill with a 3D printer for a fraction of the cost of manufacturing one conventionaly. Learn more about open-source 3-D printing of open source appropriate technology for sustainable development.

Monolithic dome office
Monolithic domes are constructed following a method that requires a tough, inflatable Airform, steel-reinforced concrete and a polyurethane foam insulation. Each of these ingredients is used in a technologically specific way. This technology was developed by the Monolithic Dome Institute (MDI). The domes can be designed to fit any architectural need: homes, cabins, churches, schools, gymnasiums, arenas and stadiums, bulk storages, landlord dwellings and various other privately or publicly owned facilities. The dome, when finished, is earthquake, tornado and hurricane resistant (FEMA rates them as "near-absolute protection" from F5 tornadoes and Category 5 Hurricanes).

MDI has also developed the technology to build so-called "EcoShells". These are simple structures to provide for the basic needs of a family. They are designed specifically to answer the needs of shelterless people worldwide. They are strong structures that can withstand natural disasters, fire, termites and rot. In underdeveloped areas with hot climates, EcoShells make affordable, low maintenance, sturdy housing. In industrialized nations, EcoShells make superior workshops, garages, storage sheds, etc.

Terraces and ditches at Petegral

Terraces and ditches at Petregal a Permaculture Demonstration Center in Oaxaca, Mexico.

Vinay Gupta (left), inventor of the Hexayurt.
All exceptional abilities initially arise as defenses.

Planted cattails at Millcreek greywater
Greywater, sometimes also spelled as graywater, grey water or gray water, is all of the effluent water from a household, such as water discharged from lavatories (bathroom sinks), bathtubs, showers, clothes washers, and laundry trays. Greywater is not wastewater from a sink used for food preparation, or water closet (toilet) wastewater.

The water leaving our homes carries nutrients and value. It may also contain pathogens, and/or harsh chemicals and care should be taken with it. However, it is not a great risk compared to blackwater (sewage).

Redirecting the water we use for tasks such as showering allows us to reclaim some of that value to grow plants and recharge the water table. It may be necessary to choose our soaps and detergents more carefully, if we use the greywater for watering and fertilizing plants.

Main portal: Water
edit  watch  Selected service learning Projects gallery (refresh)

ENGR 215 Introduction to Design projects – Fall 2010: HBCSL Somoa Hostel: The Fall 2010 semester of Engineering 215 worked with Humboldt Bay Center for Sustainable Living to design and build projects that support a proposed eco-hostel in Humboldt County.

Fall 2010 ENGR 215 Intro to Design Projects - HBCSL
Thermosyphon Solar Shower System
An outdoor shower that utilizes solar energy to heat the water  
Samoa Hostel Truth Tank
Provides greywater treatment system for a satellite solar shower  
Samoa Hostel Wattimus Prime
A metering scheme that monitors the amount of energy used by the visitors  
Can You Feel The Heatloss?
An education display about convection and heat loss  
Samoa Hostel Natural Paints
A natural paint display to educate visitors of the Samoa Hostel  
Pain in the Axle
A bicycle-powered electrical generator that powers a television and DVD player  
Samoa Hostel Windbelt
An array of wind belts that can charge a cell phone  
The Mechanical Munchy-Maker
A mechanical bicycle that generates energy to power a kitchen appliance  
Samoa Hostel Insulation Station
Educates visitors about the effectiveness insulation types and their relative costs  
Samoa Hostel greywater island
Models, designs, and educates guests and implementers of hostel size greywater treatment  

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