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Date: | Wed, 4 Nov 1998 16:20:28 -0800 |
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Please help me. Uncharacteristically, perhaps, I'm not trying to be
contentious. I really don't understand this model. You like it drier when
it's cold or you like it drier when it's warm? Most people find it MORE
difficult to handle high temperatures when the relative humidity is high,
mainly because their sweat won't evaporate (a problem which, thankfully,
harpsichords usually don't have to deal with).
>Owen misunderstands me, and I have re-read his earlier post of the third; I
>meant what I said. I keep the relative humidity at 30-40% measured at the
>ambient temperature of about 16C (60.8F). If you took this air and heated
>it up to (say) 24C (75.2F), the relative humidity would measure much lower
>(17-23% by my calculations), and I (and my harpsichord and other wooden
>belongings) would find it too dry. In the summer, when the temperature may
>occasionally be as warm as 24C (75.2F), the relative humidity tends to range
>between 70% and 100%, and when it's nearer the former figure it feels dry
>while when it's nearer the latter figure it feels muggy. It seems that the
>same relative humidity is more "comfortable" at a lower temperature, even
>though the same relative humidity at that lower temperature implies a lower
>absolute humidity. In other words, at a higher temperature, one prefers a
>higher relative humidity measured at that temperature. This is what I
>cannot explain, but I think the experience is not unique to me.
>
>Incidentally, I have had trouble with dial-reading hygrometers, so I use a
>sling psychrometer when I really want to know the relative humidity.
>
>Ed Dunham.
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