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Bibliographies@  (37) Periodic Table@  (67) Science Dictionaries@  (108)

Science Libraries@  (133) Standards  (265) Units of Measurement  (86)

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Biology and Genetics@  (32) Math@  (46)

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Acoustic Material Properties@  (5) Chemical Databases@  (62) Materials Safety Data Sheets@  (18)

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• Business: Publishing and Printing: Publishing: Academic and Technical  (166)
• Reference  (68,776)
• Reference: Dictionaries: By Subject  (611)

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• Physics and Science Reference by PhysLINK.com   - Includes physical constants, online unit conversions, periodic table of elements, exact time, fundamental physical formulae and equations.

  Astronomical Constants from NASA - Astronomical/space constants and equations..

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

  The Constants and Equations Pages - Expanding reference resource for science, math and astronomy.

  EquationSheet.com - Searchable directory, arranged by field, of equations, constants, symbols and SI units. Also features LaTEX utilities, software links..

  GrayLIT Network - Searchable database for reports that are generated by federally funded projects..

  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. Free service..

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