At 12:32 AM 4/17/2009, craig cowan wrote:
>When you see
>studs/bolts that seem to grow, but also morph fluidly into the object they
>are attached too, it is simply amazing (In a terrible way).

Rust has two characteristics that promote this, I believe.  First, it
has about ten times the volume of the original metal; and second,
it's very brittle.  The way the exhaust nuts taper into the flange
metal -- I wonder if oxygen depletion at the larger surface has
something to do with it.

  --
David Beierl - Providence RI USA -- http://pws.prserv.net/synergy/Vanagon/
'89 Po' White Star "Scamp"