This category in other languages:

  • DOE Community - Searchable database for reports that are generated by federally funded projects.
  • RefScout - A weekly, scientific reference mailing service.
  • Beta-Theta - Gives general defintions, background and examples from the science fields of biology, physics, chemistry, math, and history. Includes forum boards.
  • Astronomical Constants from NASA - Contains astronomical/space constants and equations.
  • Science and Engineering Encyclopedia - Descriptions, equations, calculators, conversions and material data for engineering, mathematics, physics and chemistry.
  • Eformulae.com - Online resource providing engineering, science, math, physics and chemistry formulae for reference.
  • The Constants and Equations Pages - Expands reference resources for science, maths, and astronomy.
  • CalcTool - Directory of simply-presented javascript calculators and equations for making common calculations. Provides quick, simple online calculation and unit conversion tools.