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This University of California Sustainable Agriculture Research and Education Program provides several links to articles on earthworms. These describe the earthworm's importance to ecosystems and agriculture. There is also a section with species profiles of various types of earthworms.

ECOLEX provides comprehensive information on international environmental law and national environmental law from various countries. This engine lets you search the database for common laws, treaties, legislation, court decisions, and literature. Users can search by keyword, geographical location,...

This website, provided by the Ecological Building Network, promotes techniques and materials that conserve the earth's resources during residential construction in more developed countries. It also seeks ways to create safe, affordable, and healthy structures using indigenous materials in less...

This collection is provided by Laney College and includes ten resources related to problem-based learning (PBL) that were used in the Commercial HVAC Systems certificate and associates degree program. This program prepares students to install and maintain commercial HVAC systems and controls....

Electric Drive Transportation Association represents the interest of those involved in the development, production and use of battery, hybrid and fuel cell electric drive technologies. The EDTA serves as the central source of information on the technical, market and policy issues surrounding the...

This is an interactive Java tutorial, created by Michael W. Davidson of Florida State University, covering the principles of electromangentic wave theory. The user is able to adjust variables such as amplitute and wavelength and observe immediately the effects on the animated screen.

Description:  This learning module is provided by Work-Ready Electronics and covers electronics careers, including job pathways. Work-Ready Electronics modules are intended to be used either independently or integrated with current electronics curricula in college programs. This module is divided...

Description: This learning module is provided by Work-Ready Electronics and covers electronic circuits. Work-Ready Electronics modules are intended to be used either independently or integrated with current electronics curricula in college programs. This module is divided into three sections: Course...

This online magazine features electronic designs and innovations. The site features a number of articles on electronic design related topics. The main sections of this website are Automotive, Industrial Automation, Analog, Power, Embedded Revolution, Test and Measurement, Resources, and Experts. 

This website includes links to a wide range of electronics tutorials. Links cover many topics, some of which include Classes in Electronics, Amplifiers and Filtering, MOSFETs, Digital Filters, CMOS, Phase-Locked Loops, Operational Amplifiers, and more.