A Bomb Is...
This reminds me of Alfred Poor's definition of a bomb. Something like "a lot of energy stored in a very small space".
http://www.manufacturing.net/news/2012/04/2-hurt-in-battery-explosion-at-gm-tech-center?et_cid=2587973&et_rid=45618225&linkid=http%3a%2f%2fwww.manufacturing.net%2fnews%2f2012%2f04%2f2-hurt-in-battery-explosion-at-gm-tech-center
Take Care
Charlie