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Terry L.M. Bartelt of the Wisconsin Online Resource Center has created this object learning activity on alternating current (AC) voltage conversions. This is a nice introduction for those interested in this basic topic.

The Materials Science and Technology Teacher's Workshop (MAST) provides this activity for classes learning about diodes and electrical currents. The laboratory illustrates how diodes can be used to rectify alternating current. It uses a galvanometer to determine the direction of current flow when an...

This page, from Iowa State University Extension and Outreach, provides information intended to "assist producers, processors, marketers, business owners, policy makers, researchers and the general public with information on alternatives to Iowa's traditional crops (corn and soybeans)." The site...

This site, provided by the Agriculture Network Information Center (U.S.), provides information on sustainable agriculture. This site discusses what sustainable agriculture is and provides further resources. 

The Alternative Fuels Data Center (AFDC) is a website published by the Office of Energy Efficiency and Renewable Energy at the United States Department of Energy. The website "provides a wealth of information and data on alternative and renewable fuels, advanced vehicles, fuel-saving strategies, and...

The ATETV project delivers web-based videos to connect students to careers in advanced technology. In this episode of ATETV, dual enrollment, changing careers and GIS technology are discussed. Many community colleges offer dual enrollment programs: high school students can receive college credit...

American Farmland Trust (AFT) works to stop the loss of productive farmland and to promote farming practices that lead to a healthy environment.  This website provides resources and ways to get involved with the organization's mission.  Advocacy and educational materials are also included.

This website, provided by the American Hydrogen Association, offers information about hydrogen as an alternative energy source.  Through educational products and research, publications and outreach programs, the AHA seeks to promote understanding of hydrogen technology and to help create a market...

The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) is an international organization that strives to "serve humanity and promote a sustainable world through research... publishing and continuing education." The site for ASHRAE contains ePublications and...

This webpage, provided by the Georgia Institute of Technology, includes videos from the Advanced Manufacturing and Prototyping Integrated To Unlock Potential (AMP-IT- UP) project. AMP-IT-UP is a partnership between the Georgia Institute of Technology and the Griffin-Spalding County School System....