Physiclips thoroughly presents mechanics concepts about light with animations and film clips. Learn about light and color, wavelengths, speed of light, electromagnetic waves, Young's experiment, and photons.

Student teams conduct an experiment that uses gold nanoparticles as sensors of chemical agents to determine which of four sports drinks has the most electrolytes. In this way, students are introduced to gold nanoparticles and their...

Einstein Light highlights the Theory of Special Relativity and related topics. Learn how Galileo, Maxwell, and Einstein contributed to our knowledge of relativity, electricity, magnetism, and time by watching fun, interactive modules.

Learn how to build your very own speaker with items usually found around the house. Follow step-by-step instructions and discover how to use your speaker to listen to the radio.

Can you hear a magnet? In this activity you will be able to transfer the sound from your iPhone, iPod or radio to a cassette-tape player.

This site, in German, offers numerous apps that illustrate common physics principles. Apps are organized into categories: mechanics, oscillations and waves, electrodynamics, optics, thermodynamics, the theory of relativity, physics of...

Create a simple device to see how a force is exerted on a current by a magnetic field. This activity shows how an electric motor can be made with this force.

Create a magnetic field that is stronger than Earth so a compass needle will orient itself to the new field in this activity.

Learn how to make an electric motor in this simple activity.

A historical approach to special relativity, giving all the events and names in the history of discovery of special relativity. Many links to these individuals.