In this project you will build your own speaker from household materials and find out how speakers convert electrical signals into sound. Background Sounds, such as songs or the audio track on a ...

Fascinated by the idea, he broke down this accidental discovery into a step-by-step guide on how to make a simple, very simple speaker. All that’s required is a magnet, copper wire, some tape, a ...

The theory behind speaker operation is pretty simple. There’s a coil that is attached to some type of diaphragm and a permanent magnet. When electrical signals pass through the coil a magneti… ...

When a hacker finds himself with a metal disc and magnet surgically implanted in his skull, chances are pretty good that something interesting will come from it. [Eric Cherry]’s implant, desi… ...