Hi,
From what I know, is that when you want to boil a cup of water in a
microwave (b.t.w. over here we tend to call it a magnetron),
you are required to put a metal spoon in the cup of water to make sure
it will boil in a regular way.
I seem to recall it has to do something with the surface structure of
the spoon, so bubbles will be created.
A similar kind of experiment was done by Mythbusters and others as well
with a bottle of Coke and some Mentos.
It was concluded that structure of the Mentos was one of the main
reasons the Coke gushed like a fountain out of the bottle.
Kind regards,
MoB
