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Chemistry Science Help Online — This is a free website, designed to help students, from all around the world, learn Chemistry. On the site, your students will find lessons, worksheets, practice quizzes, crossword puzzles and more. CHEMTUTOR Structure of Chemical Sciences Chemistry:WebElementsTM Periodic table (professional edition - you can also jump from here to the Scholar Edition) Periodic Table of the Elements Knowledge by Design: The Learning Matters of Chemistry U of Florida: Pictures of Atomic Orbitals Transmission Electron Microscope ChemTeam Cathode Ray Tube Results ChemTeam Chemistry Tutorial Hobby Projects - useful collection of electronic design problems DirectoryScience.com Science Lobby: Virtual Laboratory: Ideal Gas Law Buy This Book Homework Helpers - Chemistry, by Greg Curran. Paperback, 320 pages (March 2004). Our Price: Click for Price Earth and Environmental Topics: Activity: Gravity Gauge Activity: Orbital Forces Activity: Weight Equinox International EPA's Global Warming Site US EPA Office of Air and Radiation Environmental Web Directory The NIST Reference on Constants, Units, and Uncertainty Geophysical Institute of Alaska NASA Observatorium Educator's Resources DOE's National Renewable Energy Laboratory Sources of the Magnetic Field Your Weight On Other Worlds General Topics: Science.Gov — Gateway to authoritative selected science information provided by US Government agencies, including R&D results. This Week in Science — the online headquarters for the weekly science news radio show Electronic Transactions on Artificial Intelligence The Smithsonian Institution The Biospace Home Page The Free Online Computing Dictionary Mathematics: The Fine Structure Constant, a 20th Century Mystery. Solution to a 20th century mystery. Feynman's conjecture of a relation between alpha, the fine structure constant, and pi. The formula for alpha and some of its consequences, plus a variety of science-related links by Dr James G. Gilson, Emeritus Staff, Queen Mary College, University of London. A Catalog of Mathematics Resources on the WWW and the Internet   Explore SSS Online Click on a topic below to explore SSS Online: Contents What's New on SSS-Mag SSS Online Ezine Ezine Menu Reference Topics Glossary Website Info Advertising SS Topics Menu SS Tutorial SS History SS Enigmas RF Topics Menu RF Spectrum The dB Smith Charts Wireless Topics OFDM CDMA Ultra Wideband Antenna Links Design Topics Tech Notes & Tips Design Tools FREE Software Menu Pegasus Menu Ham Radio Topics Practical Communications Theory Fun & Games Fun Links Link Index Assorted Topics Search E-zine Menu Pegasus Tech Welcome Home   Tel: 865-717-9339   ||   FAX: 865-717-9904    ||   E-Mail: This site © 1995-2007 by SSS Online, Inc. All rights reserved. Revised June 25, 2007