While doing some morning reading I ran across an article related to electricity & earthquakes at Wired. (the article is at wired; not the quakes
)
http://www.wired.com/wired/archive/1...osts.html?pg=3
Quote:
|
Originally Posted by Wired
"This rock is basically a battery," Friedemann Freund says, tapping a 3-foot chunk of granite. To demonstrate his point, he's placed the rock in a refrigerator-sized steel press and attached wires to copper electrodes on either end. The touch of a button drops 20,000 pounds of pressure on the block, sending a few nanoamps of current through the wires.
|
