There is a nice, complicated chart with curves and such. I probably have a copy somewhere at home, but finding it is another matter. But have you put a hygrometer on the parts in question? Can you leave it on the keys during an interesting time? One with a maximum and minimum function, I mean. A bit more direct than the calculations! Nothing like data... Doug On Feb 12, 2008, at 1:34 PM, Jeff Tanner wrote: > On Feb 9, 2008, at 7:31 AM, Don wrote: > >> Hi Jeff, >> >> Do a "dew point" calculation for the recital hall. >> Regards, >> Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. >> > > Hi Don, > With a big southern country boy grin on my face and a big tummy > full of humility... > > I'm a musician with a business degree who began studying piano > technology at a relatively young age. I do understand the basics > that warmer air can hold more moisture and that by heating air the > relative humidity will go down and vice versa, and that it is more > complicated than that. I looked at a web site with formulas for > calculating dew point, and it looks to be outside the basics for > business calculus I could actually work for a short time 20 years > ago and appears to involve calculations for saturation vapor > pressure and water vapor pressure among other things. Do you have > a simpler formula? or do you actually understand all this? > > http://www.natmus.dk/cons/tp/atmcalc/atmoclc1.htm > > Tanner >
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