Comment: Here is how to build one

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Here is how to build one

I'll let you know what how mine turns out. The effects on ferromagnetic fluids are particularly intriguing, when one considers the effect of frequency on water. The fact that simply placing a magnet in the center and hooking it to an ipod gives you a speaker has some pretty mind blowing implications. I look forward to having a coil of my own, and seeing what I can do with it. Understanding the math is not required to build one, just a little curiosity.

This is the article that got my posting privileges revoked: