See also:  Physics and Science Reference by PhysLINK.com  Physics / science reference, physical constants, online unit conversions, periodic table of elements, exact time, fundamental physical formulae and equations and more.
 Acoustic material property tables  Specialty Engineering Associates
 Astronomical constants from NASA  Astronomical/space constants and equations
 Biocatalysis/Biodegradation Database  University of Minnesota Biocatalysis/Biodegradation Database lists microbial biocatalytic reactions and biodegradation pathways primarily for xenobiotic, chemical compounds.
 Favorite Mathematical Constants  Mathematical constants from Steven Finch and Mathsoft
 Fundamental Physical Constants from NIST  CODATA Internationally recommended values for a wide range of physical parameters (speed of light, Avogadro's constant, masses of elementary particles, Planck constant, acceleration of gravity, etc.)
 Institute for Scientific Information (ISI)  Scientific publication databases
 NIST General Tables of Units of Measurement
