Altitude

[Brian Densmore]

> -----Original Message-----
> From: Hal Duston 
> 
> 
> Jonathan Hutchins wrote:
> > 
> > > Actually, I believe that vacuum is a better insulator 
> than the gaseous
> > > stew we use for atmosphere.
> > 
> > Two words: "Vacuum Tube".
> 
> Which requires a heater to remove the electrons from the 
> cathode and even
> then there isn't a spark.  If current flowed through the 
> vacuum even in the
> absence of a heater, then no vacuum tubes would work.
> 
> Also remember the 'L' in LCD stands for liquid.  Get it too 
> cold and it
> freezes.  If the liquid contains water, it expands upon freezing.  I'd
> imagine that would destroy a notebook screen rather nicely.
>
LCD displays should have no problem operating down beyond -40 degrees C/F.
Although response time will be noticeably slower and the voltage necessary
to drive it would have to increase and the display logic would have to know
how to deal with all this.