Provides a long list of physics formulas for easy reference.

Several pages from an excellent site which describe the science of spectroscopy. The unique atomic emission (and absorption) line spectrum of elements are illustrated and explained. Includes a Java applet depicting the quantum energy...

This is an understandable tutorial which guides the viewer through the innovations which led up to the verification of Bose-Einstein Condensation (BEC) in 1995. Follow the "Next," link at the bottom of the page to explore the following...

Several pages with an interesting discussion of the visible light spectrum and atomic absorption and emission line spectrum. Features excellent graphics, thorough and understandable discussion, and many interactive Java applets.

A collection of video lectures from course investigating the theory behind modern physics taught at Stanford University. The course introduces the basic concepts of particle physics by teaching about light, quantum field, Diary Equation,...

The Pauli Exclusion Principle requires that all electrons in an atom have unique energy levels.

A lovely biographical piece about Ernest Rutherford. A number of personal notes, along with extensive information about the physics work he did. Nice quote at the end.

A graphical and verbal description of a demonstration which illustrates the phtoelectric effect. Directions, safety precautions, and explanations are provided. Ideally suited as an idea-generator for a student project or lab investigation.