See http://web2.0calc.com Formulas for Algerbra, Geometry,Trigonometry and Finance

Web 2.0 scientific calculator

Use Wolfram Alpha to Convert Obscure Technical Measurements Into Layman's Terms

http://www.wolframalpha.com/

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Free BC maps from gov't as downloadable PDF files
http://www.newsroom.gov.bc.ca/2013/06/provincial-topographical-base-maps-go-mobile.html