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Contains astronomical/space constants and equations.
Gives general definitions, background and examples from the science fields of biology, physics, chemistry, math, and history. Includes forum boards.
Directory of simply-presented javascript calculators and equations for making common calculations. Provides quick, simple online calculation and unit conversion tools.
Expands reference resources for science, maths, and astronomy.
Searchable database for reports that are generated by federally funded projects.
Online resource providing engineering, science, math, physics and chemistry formulae for reference.
Online reference collection used by applied scientists and practicing engineers to quickly locate technical information.
Descriptions, equations, calculators, conversions and material data for engineering, mathematics, physics and chemistry.
Newsgroup and publicly-accessible email discussion list search and directory service.
For the Wikipedia Reference Desk, see Wikipedia help desk. Look up reference in Wiktionary, the free dictionary. ... REF. Museum - The online museum of references ...
Yahoo! reviewed these sites and found them related to Reference ... Reference/Wikimedia_Foundation/ List Universe, The. Offering a compendium of top 10 lists. ...
Search online reference materials - American Heritage Dictionary, Columbia ... Search Reference. Enter a word or phrase to look up: ...
Refdesk is a free and family friendly web site that indexes and reviews quality, credible, and current web-based reference resources.
Reference site allows you to search over the Columbia Encyclopedia, the Encyclopedia of World History, fact books, thesauri, quotes, and more.
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