He has created a science site with many interactive physics experiments, from sliding down a ramp to tinkering with a solar system. Requires shockwave plug-in. Fifty Years of the Transistor - 1997 was the 50th anniversary of the invention of the transistor. Here is its history written by the lab where it was invented. Fireworks, Half a Dozen Pi's, and the Fourth of July - Estimate the size of fireworks bursts in the sky using a simple formula.
Article includes discussion of physics and math involved.
Fizzics Fizzle - Interactive guide to physics. Flywheel Physics - Flywheel fundamentals. South High School Physics - Offering help for the high school physics student with dynamic animation examples, problem sets and a comprehensive guide to the material. There is a section for teachers and one for students. How Things Work - A service providing answers to questions about physics, science, and how things in the world around us work.