[time-nuts] Thunderbolt stability and ambient temperature

[Joseph M Gwinn]

time-nuts-bounces at febo.com wrote on 06/10/2009 07:23:56 PM:

> Joseph M Gwinn wrote:
> 
> > I read somewhere the suggestion to take the cast iron block 
> from an old 
> > automobile engine and put it in a heavy insulated wooden 
> cabinet: ~250 Kg 
> > of iron in an insulated box.  Cracked blocks are useless in 
> an engine, and 
> > so are available in junkyards quite cheap.
> 
> Yes, but water is so much easier to find, and easier to
> package, plus it has a great storage capability.

And evaporates and leaks.  But yes, I've used water for quick jobs.

Joe Gwinn