How Shit Works: Vibrators

How Shit Works is the new tutorial article series here at Slashdong. We aim to teach people about science, math and engineering, one sex-based object/action at a time. We'll try to keep things silly and as easy to understand as possible, but beware, you may run into an equation or graph every so often, and after these reading these articles, you might actually UNDERSTAND it. If you understand these things, you will be a geek, and if you are a geek, you will get laid often.

So if you want to get laid often, continue reading.

Kicking off this series is a tutorial on the engineering behind vibrators. A power source, a variable resistor and a DC motor all combine into one orgasm producing power house, and now it's time to take a peek under the hood to see what makes the things tick (or, well, vibrate).