-
Astronomical/space constants and equations.
-
Microbial biocatalytic reactions and biodegradation pathways primarily for xenobiotic and chemical compounds (from the University of Minnesota).
-
Engineering software solves many common engineering problems quickly and efficiently. Includes unit converter, and many frequently- used data tables such as physical constants, properties of materials, screw threads, and piping pressure drop. Free downloads. Win3.x/95/98/NT.
-
Searchable directory, arranged by field, of equations, constants, symbols and SI units. Also features LaTEX utilities, software links.
-
Information on Kepler's laws, the laws list, illustrated orders of magnitude, and a physics reference.
-
Research-level essays about mathematical constants from Steven Finch
-
CODATA Internationally recommended values for a wide range of physical parameters (speed of light, Avogadro's constant, masses of elementary particles, Planck constant, and acceleration of gravity).
-
Provides a full-text search across the gray literature of multiple government agencies within a science portal of technical reports.
-
A co-operative network of partners aiming to improve world-wide access to scientific information.
-
Ein Online-Programm für Berechnungen.
-
Physics / science reference, physical constants, online unit conversions, periodic table of elements, exact time, fundamental physical formulae and equations.
-
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.
-
Expanding reference resource for science, math and astronomy
