Using Heat on Stuck Things, it works based on Physics

[Mark L. Chang]

nothing beats experience to prove physics. trying to get a dodge neon
crank pulley back on (6000# press fit), ice on the crank snub and pulley
in the oven worked great.

On Sun, Dec 21, 2003 at 04:37:19PM -0500 or thereabouts, Huw Powell wrote:
> 
> >Thus, the holes diameter will actually increase rather than 
> >decrease. It seems counter-intuitive until you think it out carefully. 
> >
> >Thanks to Larry Gonick in his book, Thinking Physics.
> 
> After my last debacle with thought experiments I should know better, but 
> the easiest way for me to get my head around this one (I initially 
> "bought" the proposition that the hole would get smaller), was to leave 
> the hole out - just scribe a circle on the piece of metal.  When you 
> heat the metal up, it *all* gets bigger, ie, every point gets slightly 
> further away from every other point.  Just like the incredible expanding 
> universe.  So the hole gets bigger no matter how large or small the 
> piece of metal it is a part of.  Or, I guess, not a part of.  Can a hole 
> be part of something?  I know you can't paint a hole yellow...
> 
-- 
Comedian: You laugh on the outside, but inside you harbor a bitter resentment
toward people who have enough money for food.