Tyndall, John, 1820-1893 · New York : Appleton · leaf 92
ert, and produce a greatereffect than one upon the ear. And if instead of two tubeswe had ten of them, or better still, if we had a tube forevery orifice in the disk the puffs from the entire serieswould all issue, and would be all cut off at the same time.These puffs would produce a note of far… … is urged—through nine apertures, therefore, puffs escape aionce. On turning the whirling table, and alternately in-creasing and relaxing its speed, the sound rises and fallslike the loud wail of a changing wind. se SOUND § 4. Musical Sounds produced by a Tunvng-fork. Various other means may be…
Sound
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.