Science and Technology

[Computer Science][General Science][Life Sciences][Mathematics][Physical Sciences]

General Science
4000 Years of Women in Science
Catalog of the Scientific Community: 16th and 17th Centuries -- Detailed biographies.
Eric Weisstein's World of Science
EXTOXNET - The EXtension TOXicology NETwork -- Objective, science-based information about pesticides.
Forces of Nature
Great Canadian Scientists
Greatest Engineering Achievements of the Twentieth Century
History of Science Timelines
How Everyday Things Are Made
How Stuff Works
Intute - General Science
Inventor of the Week Archives -- Information on American inventors and their discoveries.
Khan Academy -- 1000+ videos on YouTube.
National Inventors Hall of Fame
Public Library of Science
SciTopics -- Distilled, authoritative and up-to-date information for researchers on scientific, technical and medical topics.
Science Animations
Science Fair Project Index
Science Odyssey: People and Discoveries
Science Portal
Science.gov
Scirus -- Search engine for scientific information.
Scitopia -- Federated search portal to the digital libraries of leading science and technology societies.
SJSU Virtual Museum: Scientists
Tracking El Nino -- Provided by Nova.
U.S. Patent and Trademark Office - Patent Databases -- U.S. patents issued since 1976 in full text.
VADLO -- Biomedical and life sciences search engine.
Wiley InterScience - Acronym Finder
Worldwide Patent Offices

Mathematics
Abacus: the Art of Calculating with Beads
Biographies of Women Mathematicians
Dictionary of Units of Measurement
Eric Weisstein's World of Mathematics
Math.com
Math Reference Tables
Mathematics Portal
Metric Conversions -- Includes calculators and conversion tables.
PlanetMath
S.O.S. MATHematics -- Resource for math review material.
Science.gov: Computers and Communication and Mathematics
What's Special about this Number

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