A cold problem

-40F=-40C I believe.

Probably not going to happen

At least not very often south of the Canadian border. Air temperature anyway. Wind chill could get there much more frequently in extreme conditions.

> At what temperature are Fahrenheit and Centigrade equal?

Equal to what? I thought it was widely understood that the Fahrenheit scale was the one and only true measure of temperature and that the Celsius merely a runner-up that has gone as far as it has by fudging the obvious fact that water freezes at 32° and boils at 212°. Pretending that those same facts occur at 0° and 100° (significant errors in both cases as may be seen) has attracted many devotees, but surely not in those parts of North America below Latitude 49° N and above the Republic of Mexico.

Agreed Kent.

Metric is a PIT Upper Foot.

But some cannot count past ten, being bereft of further metacarpal or other such extensions.

YOS

TNAI

Derek ....

That's why I wear slip-on shoes, I can get to 11--20 quicker!:-D

-JD-