Dear Bill, I used to tune for a large hotel in their lounge here. I would usually get there about 8am in the morning. On most tunings there (every 2 weeks) the temperature on my little Radio Shack humidity - temperature gauge would be reading in the low 60's degrees and about 80% humidity. On the gauge it actually displayed "wet". I got in the habit of looking up for storm clouds above. Cold and clammy. James Grebe R.P.T. from St. Louis pianoman@inlink.com "Take me through the darkness to the break of the day" ---------- > From: Maxpiano@aol.com > To: pianotech@ptg.org > Subject: Re: Piano On Ice. > Date: Sunday, October 19, 1997 5:59 AM > > In a message dated 97-10-19 01:00:43 EDT, you write: > > << I had always assumed that the relative > humidity approached 0% as the temperature dropped below freezing since any > moisture that had been in the atmosphere would be frozen and thus removed > from > its vaporous state. >> > > Relative humidity is just that: relative. As opposed to absolute humidity. > It is a percentage relative to the amount the air could hold at a given > temperature. Since air will hold more water as the temperature goes up, and > less as the temperature goes down, the relative humidity increases as the > temperature goes down. The reason water runs out of an air conditioner is > that in the cold interior of the device the percentage has reached 100(%), > not 0%, and the excess moisture drops out. > > I speak from a relatively uneducated perspective, just observation. Perhaps > the more erudite persons on the list could elucidate better. > > Bill Maxim, RPT
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