An online encyclopedia of physics terms and formulas. Fully searchable, and also browesable alphabetically and by topic. Part of Eric's Treasure Troves of Science.
The Institute of Physics is a leading scientific society. We are a charitable organisation with a worldwide membership of more than 50,000, working together to advance physics education, research and application.
The American Physical Society through PhysicsCentral, communicates the excitement and importance of physics to everyone. We invite you to visit our site every week to find out how physics is part of your world.