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Reference Websites

Includes reference webpages and tools for general science or those that would apply to several different disciplines. Some examples would be lists of constants, measurement conversions, online calculators, formula tables, exact time, properties of materials, and technical standards.
1 -

Beta-Theta

Gives general definitions, background and examples from the science fields of biology, physics, chemistry, math, and history. Includes forum boards.
2 -

Physics and Science Reference by PhysLINK.com

Includes physical constants, online unit conversions, periodic table of elements, exact time, fundamental physical formulae and equations.
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Science and Engineering Encyclopedia

Descriptions, equations, calculators, conversions and material data for engineering, mathematics, physics and chemistry.
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CalcTool

Directory of simply-presented javascript calculators and equations for making common calculations. Provides quick, simple online calculation and unit conversion tools.
5 -

Knovel

Online reference collection used by applied scientists and practicing engineers to quickly locate technical information.

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