"C-4 is in the news quite a bit these days -- it's a powerful explosive that’s used in terrorist attacks all over the world
http://www.google.com/search?hl=en&q=c+4&btnG=Google+Search"
You can also use it to "cook" a can of beans & franks.
That method works a lot faster then attaching a string to the same can of beans and franks and dangling the can in front of a rather large generator exhaust pipe.
Don't ask me how I know.