Simple, commonplace and vital to our electronic world - take a closer look at the current-fighting backbone of circuitry, the resistor! more Make presents: The LED http://www.youtube.com/watch?v=P3PDLsJQcGI The Capacitor - http://www.youtube.com/watch?v=ZYH9dGl4gUE audio & video by Collin Cunningham Makezine.com