Metal expansion with heat.

[Chuck O'Connell]

Hi All,

I've a question related to the casting of metal sundials.

Which metals expand the most with heating and by how much?
(I don't want the best behaved - I want the *worst* - metals that
expand the *most*).

If I remember rightly, Tony Moss made reference to metal expansion
in an earlier e-mail.

Thanks,

Chuck.