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Online reference and resources - web development, software programming, electrical formulas.

Online Conversion is a resource for weights, measures, calculators, converters.

Metric Conversion calculators, tables and formulas for temperature, length, area, volume and weight metric conversions.

Chemistry is the study of matter and energy and the interactions between them. Get facts for the elements in the periodic table. Find chemistry demonstrations and experiments and science fair projects. Get chemistry homework help with worked example ...

Convert measurement units for metric, imperial systems and more. Includes conversion charts, tables.

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This online unit conversion tool will help you convert measurement units anytime and solve homework problems quickly using metric conversion tables, SI units, and more.

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Tools and Basic Information for Design, Engineering and Construction of Technical Applications