A while back, I read a Tom Clancy book in which they theorized about a weapon based on kinetic energy. In short, they would drop huge steel rods that were controlable in order to eliminate buildings and the like. These weapons were protrayed as extremely powerful. So, on to my questions: 1. Would weapons like these work and be efficient if brought up on board the http://www.nasa.gov/mission_pages/constellation/ares/aresV/index.html" [Broken]? 2. If so, how much energy would be released by the resulting concusion and what are the implications for destructive magnitude?