Units of Measurement
Reference Sites
Science Reference
Science Reference sites
Science Reference
Science Reference sites
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.
Online reference collection used by applied scientists and practicing engineers to quickly locate technical information.
Physics and Science Reference by PhysLINK. com
Includes physical constants , online unit conversions , periodic table of elements , exact time , fundamental physical formulae and equations.
Science and Engineering Encyclopedia
Descriptions , equations , calculators , conversions and material data for engineering , mathematics , physics and chemistry.

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