Exploding manholes are one of those weird and interesting side effects of living in a large city. Imagine walking down the street when all of a sudden a manhole covers flies 50 feet in the air!
One evening, people heard their local lake rumbling. A day and a half later, 1,700 people were dead. What happened on that fateful night?
Wind energy is great, but what happens when there's no breeze? The Iowa Stored Energy Park will store compressed air underground. Can it replace traditional energy sources?