Re: Cold

"Russell Wallace" <russell.wallace.nospam@[EMAIL PROTECTED]
> wrote in message 
news:ke9nj.24294$j7.450403@[EMAIL PROTECTED]
>...
> Right, so the threshold seems to be maybe down to -60C, above which you 
> can operate with suitable cold-weather clothing, and below which you
start 
> needing special equipment. And I suppose once you're using special 
> high-tech gear,

or special low-tech furs and skins.

 there isn't really another qualitative threshold until
> it gets too cold to sustain atmospheric pressure (suit design and 
> operation become trickier once it has to maintain a pressure difference)
- 
> which won't happen until the temperature gets _much_ lower.

Depending on your narrative objectives, remember that on earth, the 
headline-and-record-book low temperatures are (almost invariably) recorded

at the bottoms of steep inversions in river valleys and depressions. The 
aboriginal people avoided country like that in winter, leaving fish camps
in 
the fall for the high country, where they hunted or tended flocks. There, 
the temperatures might be 10 or 20 degrees C warmer. They weren't stupid.

Cheers,
Fred