Table of Nuclides. Lists elements and corresponding isotopes.
WebElements: periodic table of elements on the web.
Neutron Scattering Lengths & Cross Sections: for thermal neutrons only.
Neutron cross sections: neutron cross sections databases.
NIST X-COM: photon cross sections database.
NIST ESTAR, ASTAR, PSTAR: stopping-power and range tables, for electrons, protons and Helium ions.
Boedeker Plastics: material properties database.
NIST Chemistry WebBook: thermophysical properties database (gas density, viscosity, etc.).
Convert-me.com (pressure): provides online conversions for various units and systems.
Gamma-ray spectra: gamma-ray spectrum catalog of isotopes.
NIST Physical Reference Data: collection of NIST databases and libraries.
National Nuclear Data Center: nuclear structure and decay databases, etc.
Normal distribution calculators: probability and quantile applets.
Poisson distribution calculator: listing of Poisson probabilities.
Pressure drop calculator: calculates the pressure drop for flow in a pipe.
Thin-Walled Pressure Vessels: calculate wall stresses in cylindrical and spherical vessels.
Cancer WEB Online Medical Dictionary. Contains terms relating to biochemistry, cell biology, chemistry, medicine, molecular biology, physics, plant biology, radiobiology, science and technology. Includes: acronyms, jargon, theory, conventions, standards, institutions, projects, eponyms, history -- anything related to medicine or science.
Gray's Anatomy of the Human Body The Bartleby.com edition of Grays Anatomy of the Human Body features 1,247 vibrant engravings many in colorfrom the classic 1918 publication, as well as a subject index with 13,000 entries ranging from the Antrum of Highmore to the Zonule of Zinn.
Small Business Innovative Research Links: a listing of government agencies participating in the SBIR program, and other sites of interest to small businesses.
Sagitta of an Arc: calculate the sagitta of an arc.