Reference

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• Physics and Science Reference by PhysLINK.com   - Includes physical constants, online unit conversions, periodic table of elements, exact time, fundamental physical formulae and equations.

  Astronomical Constants from NASA - Contains astronomical/space constants and equations..

  Beta-Theta - Gives general definitions, background and examples from the science fields of biology, physics, chemistry, math, and history. Includes forum boards..

  CalcTool - Directory of simply-presented javascript calculators and equations for making common calculations. Provides quick, simple online calculation and unit conversion tools..

  The Constants and Equations Pages - Expands reference resources for science, maths, and astronomy..

  DOE Community - Searchable database for reports that are generated by federally funded projects..

  Eformulae.com - Online resource providing engineering, science, math, physics and chemistry formulae for reference..

  Knovel - Online reference collection used by applied scientists and practicing engineers to quickly locate technical information..

  RefScout - A weekly, scientific reference mailing service..

  Science and Engineering Encyclopedia - Descriptions, equations, calculators, conversions and material data for engineering, mathematics, physics and chemistry..

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