Monthly Archives: March 2005

Good Vibrations An Exploration of Vibration, Sound, and Music
A wave is a disturbance that transports energy from one place to another without the transfer of matter. After a wave passes through a medium, there are no residual effects; the medium remains unchanged. For example, if you throw a stone in a pond, a circular wave [...]

The electrical force is so pervasive that it is difficult to name many aspects of the physical world not affected by it. At the most fundamental level, the attractive electrical force between electrons and protons holds atoms together. On a bit larger scale, electrical interactions between atoms are responsible for the formation of molecules. On a much grander scale, a rapid discharge of atmospheric electricity manifests itself as a flash of lightning. All these phenomena are governed by the same basic principles.