Explosives-geek and writer David Hambling recently did a short piece for Noah Shachtman's DANGER ROOM blog on Navy beach-clearing experiments using continuous-rod warheads. For those unfamiliar with the concept, a CR warhead is cylinder of explosives jackets in ductile metal rods that are welded together at opposite ends. When the warhead goes off, the rods deform into a ring of hot metal that can deeply into targets. CR warheads are typically used on anti-aircraft missiles because their effect radius can compensate for a mediocre guidance package.
This is a picture from the Wikipedia entry for CR warheads and there are only two words that can possibly describe it: flippin' sweet. (Note: A reader pointed out that this may be a picture of a Canadian pipe bomb and not a CR warhead. Either way, it is still an amazing photo.)