Learn how to build a theremin in this free online video guide to electronic musical instruments, including the history of theremins, playing tips, and how to build your own. The theremin is one of the earliest fully...
Learn about the physics of resistance in a wire. Change its resistivity, length, and area to see how they affect the wire's resistance. The sizes of the symbols in the equation change along with the diagram of a...
Look inside a resistor to see how it works. Increase the battery voltage to make more electrons flow though the resistor. Increase the resistance to block the flow of electrons. Watch the current and resistor...
This page is an index to the interactive Java tutorials developed to help students understand topics in electricity and magnetism. Created by Florida State University, the site contains tutorials about concepts such as...
This lesson points out that the motion of objects (velocity or acceleration) is almost never constant, and applies this idea to the motion of a person walking. The discussion covers the energy transfers involved in...
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