[64943] in North American Network Operators' Group
Re: cooling systems
daemon@ATHENA.MIT.EDU (Joe Abley)
Wed Nov 5 17:32:23 2003
In-Reply-To: <5.2.0.9.2.20031105123659.03f12030@216.82.101.6>
Cc: nanog@merit.edu
From: Joe Abley <jabley@isc.org>
Date: Wed, 5 Nov 2003 17:31:16 -0500
To: Eric Kuhnke <eric@fnordsystems.com>
Errors-To: owner-nanog-outgoing@merit.edu
On 5 Nov 2003, at 15:42, Eric Kuhnke wrote:
> For those who have never visited Fairbanks, there is a phenomena
> observed at -15C and lower known as "square tire". The rubber in tires
> of parked vehicles will become stiff and freeze into position, making
> the vehicle impossible to move without destroying the tires.
The coldest recorded temperature in North America was -63C in Snag,
Yukon on 3 February 1947. On the same day, in Tanacross, Alaska, -59.4C
was recorded.
-15C is a normal daytime winter temperature in Southwestern Ontario; a
very cold day might approach -30C. There are a fabulous number of
places in Canada where the temperature remains below -15C for weeks and
months at a time. I haven't been here (in Southwestern Ontario) that
long, but I think if there was some danger that tyres would rip off my
wheels when I drove off in the morning, someone would have tried to
sell me something by now.
It is hard to believe that tyres used in Alaska would cease to be
useful at only -15C. That's not even cold, really. Shirt and sandals
weather.
Joe
