Reference

1. Molecular Weight Calculation  (site info) Web-based utility for finding the molecular weight of any chemical for which you enter the formula. http://www.chemie.fu-berlin.de/cgi-bin/molform 2. EquationSheet.com  (site info) Searchable directory, arranged by field, of equations, constants, symbols and SI units. Also features LaTEX utilities, software links. http://www.equationsheet.com/ 3. Astronomical Constants from NASA  (site info) Astronomical/space constants and equations. http://www.ksc.nasa.gov/facts/faq04.html 4. GrayLIT Network  (site info) Searchable database for reports that are generated by federally funded projects. http://www.osti.gov/graylit/ 5. Physics and Science Reference by PhysLINK.com  (site info) Includes physical constants, online unit conversions, periodic table of elements, exact time, fundamental physical formulae and equations. http://www.physlink.com/Reference/Index.cfm 1-5 of 7. Next »