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Includes physical constants, online unit conversions, periodic table of elements, exact time, fundamental physical formulae and equations.
http://www.physlink.com ~ Details
Expands reference resources for science, maths, and astronomy.
http://www.scenta.co.uk ~ Details


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Welcome to Earth Web Directory. Human Edited SEO Friendly Internet Directory. This General Directory has high PageRank. Explore here the best categories related to Reference - Scientific Reference like Acoustic Material Properties, Bibliographies, Biology and Genetics, Chemical Databases, Math, MSDS - Materials Safety Data Sheets, Periodic Table, Science Dictionaries, Science Libraries, Standards, Units of Measurement.


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