OK, don't know if this has been aswered before, but it occured to me while driving to work: I was stuck in traffic near a truck loaded with newly made steel pipes. Still, the bunches of pipes were already rusted. That got me puzzled.
Since I have a colleague that's specialised in anything "galvanisation" related, I asked her why was that? And she explained that steel was the most "partial to rust" alloy of all. Being exposed to air could do the trick.
And so, now I wonder: Why is it that Superman (aka Man of Steel) doesn't, well... rust? Even when immerged or showering or when soaked by the rain?
Does it all comes to his protecting aura?
Carole
