I have a toolbox with a bunch of tools in it. In addition, I have a large plastic box where I keep all my bolts and nails in a disarray.
Some of the bolts are a little rusty, and some of my tools (e.g. screwing bits) are rusty, and now I am concerned as to wether storing them all together (some of them touching each other), might induce the unrusted tools to rust as well.
Of course a thorough (i.e. scientific) explanation would be even more appreciated.