[CAUT] temperature and pitch

[Laurence Libin]

Just a small point, but heat doesn't rise; hot air rises. Heat is sucked up 
by cold in any direction.
Laurence

----- Original Message ----- 
From: "Jeff Tanner" <tannertuner at bellsouth.net>
To: <caut at ptg.org>
Sent: Saturday, December 12, 2009 2:52 PM
Subject: Re: [CAUT] temperature and pitch


.........>
> It really doesn't matter whether this is a grand or vertical. With both, 
> the heat rises and if you have the lid closed, you close in the warmer air 
> and create a small environment that is different from the air outside. 
> Though I haven't recorded the numbers, I have in the past measured the 
> difference in the temperature of a grand with a DC system inside the 
> closed cover on the plate and outside on a nearby table. There can be a 
> couple degrees difference. So, anytime I measure temp/hum in a room for a 
> piano with D/C, I always measure it outside the piano, because the air 
> inside the piano is different.
>
>> ...............