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The Physics Classroom is an online interactive tutorial of basic physics concepts. The lessons use an easy-to-understand language to present common physics principles discussed in a first-year high school physics course.

wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual. Our multilingual how to manual has free step-by-step instructions on how to do all types of things.

Welcome! Nice to have you along, reader! Because of my love for all things "Dog"-- "K9keystrokes" is my chosen pen name. You will discover a...

Farm Futures provides up to the minute information on grain and farming finance information and in-depth information for the high-income farm manager.

Research, supply, and install bat house products. Also bat exclusions, cave/mine gating, harp/mist net surveys, Indiana bat management

Answers to your questions about wood stoves, fireplaces, furnaces, chimneys, environmental impacts, wood heat safety, or anything about wood heating at home.

The U.S. DOE Energy Efficiency and Renewable Energy Web site provides information on energy efficiency and renewable energy technologies.

Fine Homebuilding has expert advice on framing, trim carpentry, home design, and specialized trades with professional how-to videos, step-by-step projects, design galleries, tool reviews, blogs, and articles from our magazine

Princeton University is a vibrant community of scholarship and learning that stands in the nation's service and in the service of all nations.

Expert advice about pregnancy, your life, and family time from the editors of Parents magazine.

The Samuel Roberts Noble Foundation is an independent, nonprofit institute headquartered in Ardmore, Okla. Founded in 1945, the Noble Foundation conducts direct operations, including assisting farmers and ranchers, and conducting plant science resear...