In a message dated 6/15/2000 3:33:28 AM, Ric wrote: <<So a perfect problem for the "emperical" (measuring) scientists would be, "does humidity affect frequency of tones, or any part of the frequency of tones?">> Nah, this has long been answered by aeronautical and acoustical engineers. i.e. <<"The velocity of sound in air at 32°F (0°C) is 1,089 ft/sec (331.9 m/sec), but at 68°F (20°C) it is increased to about 1,130 ft/sec (344.4 m/sec). *Sound travels more slowly in gases than in liquids, and more slowly in liquids than in solids.*">> This excerpt is from the Encyclopedia of Acoustics and answers the above question. But begging the question, and addressing the problem of measurement,...... If a source of pitch/tone were such that it gave off a 'measured'/'perceived' pitch of 440 hz at 70F , 10% RH and 22 mb AP would the 'perceived' pitch/tone be the same 440hz at 100F, 90% RH 26mb AP ? And the 'measured'? And further does the answer to this question, as posed in a gaseous state, also apply to a soundboard in its solid state? And ancillary to this question is the proposition that the speed/frequency of sound is infinitely variable through three, possibly four, coordinates thereby rendering only "if"-"then" answers plausible or even possible. And equally plausibly to the color(reflected light frequency dependant) of the Kings clothes being dependent on whether or not the King is in fact wearing clothes. Of course there are philosophical answers but not being "measurable" I won't go into them at this time. :-) Jim Bryant (FL)
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