kilted in north dakota

[Steeplechase]

Welcome to Xmarks! If you fullfill the wish list, that will be a impressive collection.

[Robin]

Welcome!

[Alan H]

Thirty degrees below Zero?

Is that thermodynamically POSSIBLE? ;)

[GlassMan]

30 degrees below is possible as long as you're using the Fahrenheit scale.

[Jerry]

Welcome to the forum, from central Va.

[Jerry]

30 degrees below is possible as long as you're using the Fahrenheit scale.

It's also possible on the Centegrade scale. The only temperature scales that I know of where 30 below zero in not possible are Kelvin and Rankine. Both of those are based not on the freezing point of water but on "absolute zero, which is defined at the temperature at which all molecular motion ceases. On the Kelvin scale, water freezes at 273 deg, and boils at 373 deg.

[GlassMan]

Thanks, forgot to mention Centigrade.

[Jerry]

Thanks, forgot to mention Centigrade.

Apologies, Glassman, I'm a retired Instrument tech, and I can't resist the tech stuff.

[Colin]

It's also possible on the Centegrade scale. The only temperature scales that I know of where 30 below zero in not possible are Kelvin and Rankine. Both of those are based not on the freezing point of water but on "absolute zero, which is defined at the temperature at which all molecular motion ceases. On the Kelvin scale, water freezes at 273 deg, and boils at 373 deg.

You had better believe it is. I remember many a Manitoba winter where -30 C was the norm for weeks on end. It really makes me appreciate the fact that I am now sitting in a climate in shorts on Dec. 23rd.