I find these alternate energy threads fascinating, especially due to the latest ransom we've been expected to pay at the pumps!!! Someone mentioned generating a watt of power from stressing a crystal. Can someone offer a practical procedure where one could start experimentation with this. Just think of a flashlight where one could hammer on it to make it work. This is what we do anyway when the bulb goes, but with white leds, not a problem anymore. Technological advancement; got to love it! Craig