Quote Originally Posted by EJ
And i love the way that people talk about explosions in terms of hiroshima bombs, because the latest greatest modern H bombs are ~ 9000 times as powerful.....
Actually, Hiroshima Bomb is now referred to as a Unit. See, you also talked in terms of it. Isn't it? 1 Modern H Bomb = 9000 * Hiroshima Bomb.

So, its a benchmark. We refer each and everytime about Hiroshima because we have seen the tragedy and its aftermath. Its easy to talk in terms of something about which we already know.