On Fri, 23 Sep 2011 07:59:18 +0100, Andy Burns
wrote:

John Williamson wrote:

Dave Liquorice wrote:

On Thu, 22 Sep 2011 19:49:00 +0100, Andy Burns wrote:

See if any of the companies that do car dent removal use a magnetic
induction heating tool,

Magnetic induction, stainless steel, hum...

It works on copper.

And tubas, apparently.

And you can happily induce currents in aluminum. Came across this being
used as a brake on huge wide-format digital photographic printers. Very
neat.

--
Rod