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Top / Science / Reference

   Standards
   Units of Measurement

Web SitesSuggest a Site
Astronomical Constants from NASA
Astronomical/space constants and equations.
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. Fre
EquationSheet.com
Searchable directory, arranged by field, of equations, constants, symbols and SI units. Also features LaTEX utilities, software links.
Favorite Mathematical Constants
Mathematical constants from Steven Finch and Mathsoft
GrayLIT Network
Provides a full-text search across the gray literature of multiple government agencies within a science portal of technical reports.
International Network for the Availability of Scientific Publications (INASP)
A co-operative network of partners aiming to improve world-wide access to scientific information.
Molecular Weight Calculation
Web-based 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.
RefScout
A weekly, scientific reference mailing service. Screens databases covering life and medical sciences for the key words or the combination of key words specified and will automatically update with any abstract that has come up during the last seven days
Resources For Engineering Students
From Agilent Technologies
The Constants and Equations Pages
Expanding reference resource for science, math and astronomy

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