> >> I'll bite.
> 
> Let's chew on it :)
> 
> >> The former seems to obey the "laws" of Physics and the 
> latter dinna 
> >> then we conclude that holes in a heated piece of metal 
> will expand as 
> >> the metal expands to maintain the scale of the heated object.
> 
> > Gah!  There's always one in a crowd  :)
> > 
> > Yep, everything expands proportionally, including the holes 
> (whatever 
> > shape they may be).  I don't know of any homogenous metal 
> that shrinks 
> > when heated...
> > 
> > Some people remain unconvinced of this, no amount of logic 
> or reason 
> > will sway them.  It gets more frustrating when said skeptic states 
> > "Well yes, I have heated up metal to be able to get a bearing in or 
> > out, but I still don't believe the hole gets bigger".  Gadzooks!
> 
> Let's say you have a big chunk of metal. And let's say you 
> take a flame to the immediate neighborhood of the hole. And 
> let's say the chunk itself (farther away from the hole) stays 
> at room temperature; only the area around the hole gets 
> heated. Does the hole get bigger? 


Yes, and as a bonus you crack the casting to were trying to get the bearing
into.

You'll be saying more than 'Gadzooks!' when that happens  :)

Tony

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