True -- even relatively small explosions produce (small) mushroom clouds. It's a result of the physics of the bang, not the nature of the explosive.
That said though, because Hollywood screenwriters are generally an ignorant and superstitious lot, when we see a mushroom cloud on the screen it means nuke -- as Sweno noted.
-- Bob
---------
Then the horns kicked in...
...and my shoes began to squeak.
That said though, because Hollywood screenwriters are generally an ignorant and superstitious lot, when we see a mushroom cloud on the screen it means nuke -- as Sweno noted.
-- Bob
---------
Then the horns kicked in...
...and my shoes began to squeak.