[chbot] Test Tubes for Stirling Engine

[Chris Hellyar]

Are beakers not very slightly tapered?  Would they be blown into / onto
a mould and so need to be tapered to aid in releasing em?

( Knowing nothing about the process used to make a beaker! :-) )

On Tue, 2010-11-30 at 09:27 +1300, Charles Manning wrote:
> I have two stirling engines (from kit) which I should bring to a meeting as 
> there are some interested folk.
> 
> I have bought stuff from lab warehouse in the past and they provided good 
> service. I considered using a beaker as a cylinder to give a big see-through 
> chamber.