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Home of the Monolithic Dome, an insulated reinforced concrete structure used for homes, schools, churches, gymnasiums and more.

Calculators online for finance, math, algebra, trigonometry, fractions, physics and time. Use an online calculator, search or suggest a new calculator that we can build for free online use. Conversions and calculators to use online for free. Formerl...

Learn how to do just about everything at eHow. Expert Village is now a part of eHow, adding expert How To videos to eHow, the world

Scientific physics forums for professionals and students to discuss serious issues and topics regarding physics in theory, practice, study and reality. Students can also find help for homework and career perspectives

Ecological systems design: gray water systems, gravity feed water supply, rainwater harvesting, cisterns, water conservation, composting toilets, edible landscaping, bicycles.

SPX is a global manufacturing and industrial equipment supplier which provides solutions for a range of industries, primarily in the energy sector.

Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

Online Conversion is a resource for weights, measures, calculators, converters.

WikiAnswers: Questions and Answers from the Community

Energy products and services including oil energy, coal energy analysis, natural gas & electric power, metals shipping reference, petrochemical energy insight and methodology by Platts.