whatUseek Collection Sites (submit a site ):
Science Terms  Provides the explanations, examples, and quizzes of common science terms. The topics include chemistry, physics, biology, psychology, physics and more.
whatUseek Directory Site Listings:
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.
Engineer's Reference  Compendium of engineering information. Theory, formulas, economic information, regulatory information and more.
Engineering Power Tools  Engineering software solves many common engineering problems quickly and efficiently. Includes unit converter, and many frequently used data tables such as physical constants, properties of materials, screw threads, piping pressure drop, etc. Free downloads. Win3.x/95/98/NT.
Erik Max Francis' physics pages  Information on Kepler's laws, the laws list, illustrated orders of magnitude, a physics reference, and more.
Favorite Mathematical Constants  An indepth explanation of the most important math constants.
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.)
GrayLIT Network  Provides a fulltext search across the gray literature of multiple government agencies within a science portal of technical reports.
Ideal Answers  Interactive, computational resource for engineers and researchers focusing on thermal and mechanical aspects of electronic packaging.
International Network for the Availability of Scientific Publications  Cooperative network of partners aiming to improve worldwide access to information.
Molecular Weight Calculation  Webbased utility for finding the molecular weight of any chemical for which you enter the formula.
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.
Resources For Engineering Students  From Agilent Technologies
The Constants and Equations Pages  Expanding reference resource for science, math and astronomy
