Wilderness Survival - Fire from ice - Mar 14, 2009

This page provides a description of the process that a hiker had to go through in trying to start a fire by making a lens out of ice. The author also provides a link to other successful and less successful attempts.

Moving Electrons - Oct 1, 2008

This is a hands-on classroom activity on electricity and magnetism created by the Advanced Light Source team as part of a 1996 workshop for teachers.

Parallel - Sep 7, 2008

This Adobe Shockwave simulation, provides the gravitational analog for two "electrical resistors" placed in parallel.

The Soda Bottle Speaker - Sep 2, 2008

This resource provides instructions for constructing a simple "Soda Bottle Speaker." A parts list and information about the materials user are included, as well as two experiments to study the properties of the speaker.

PhET: Lasers - Jul 29, 2008

This webpage contains an interactive simulation that allows users to explore the physics behind lasers. Two simulations are available, the first showing the optical excitation of a single atom and the second showing the result of interactions between multiple atoms.