Huge wrote:
Chris Bacon writes:
Hm. Yet there's plenty of polished aluminium about. How *do* they
do it ?

You're looking at a coat of aluminium oxide. The fact that it's a nice
optically flat one due to the metal beneath being flat also is irrelevant. It
is simply impossible to have a bare coat of aluminium metal in air.

So aluminium oxidises in air, and you can't polish it. Other
metals also oxidise in air, so are you saying it's impossible
to polish them? If not, why not?