How does that work then...?

WillyNelson · 30 Nov 2011 at 13:49

I'm having a bit of a slow moment and I can't for the life of me work out how the min side on this max/min thermometer works. When it gets colder, how does the liquid in the left hand min side move up the scale? :confused:

andicole0 · 30 Nov 2011 at 13:51

The thermometer part is a U tube, as temp changes one side goes up the other down, therefore both min and max get pushed up at different times.

Andi.

WillyNelson · 30 Nov 2011 at 14:24

But surely if the liquid is in the bottom of the U, a sit expands both sides will go up?

JayMax · 30 Nov 2011 at 21:06

http://en.wikipedia.org/wiki/Six's_thermometer

And there's your answer

WillyNelson · 2 Dec 2011 at 09:06

Thanks, all makes sense now. The alcohol at the top of the min scale reacts to the temp while the liquid in the U merely indicates it.