Monday, February 27, 2006

Links to Sustainability: acquaponics, organic farming, power generation

Links to Sustainability: acquaponics, organic farming, power generation

Just a few links to whet your appetite for sustainable technology:


(barrel acquaponics & supplies)

Fish ponds
Web of Creation - Chapter 1
Web of Creation - Chapter 3
Mother Earth News

General Info (mostly older posts from 1990s)
and (a mixture of old and new as of 2005)

One Source in Particular:
March 27 & 28, 2006 - Barrel Aquaponics – Construction and Operation
Workshop, Bryson City, NC. Each participant will construct and learn
to operate a productive small-scale system capable of producing high
quality organic vegetables and fish. For more information or to
register, visit: Aqua Culture International, or write:
Aquaculture International, Inc., PO Box 606, Andrews, NC 28901

Videos of Aquaculture International Training (related to

Appropriate Technology Transfer for Rural areas

The Aquaponics Journal Site

Hydroponic Information and Magazine

S&S Aqua Farm

Helpful Aquaculture Fact Sheets

Western Regional Aquaculture Center

Center for Tropical and Subtropical Aquaculture

Aquaculture Network Information Center

Fisheries Publications at Texas A&M

Power Generation:
One source in particular caught my eye: (Thermo-PV)

Infrared Cell Technology: The foundation of the company is gallium antimonide (GaSb) photovoltaic cells, which respond to longer wavelength radiation than either traditional silicon cells or newer gallium arsenide cells. That is, anything which is hot radiates energy in waves of varying length; silicon cells and GaAs cells capture energy in the visible light spectrum, but not in the longer wavelength infrared spectrum.

GaSb cells make a new type of electric generator possible, because 90% of the available energy is in the infrared spectrum, beyond the band edge of silicon or GaAs cells. To put the significance of this in perspective, consider that a one cm2 silicon cell in direct sunlight will generate about 0.01 Watts and a GaSb cell of equal size will produce a full Watt in a fuel-fired system. Energy densities of more than 100 times are possible, so GaSb photovoltaic cells produced in high volume can generate electricity economically. Development of the first commercially viable "thermophotovoltaic" generator is seen as the top priority of JX Crystals, and the company holds twelve patents on the technology and a copyright on the name Midnight Sun®.

Sustainable Wishes

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