Tyndall, John, 1820-1893 · London : Longmans, Green · leaf 77
CTUKE II. and alternately increasing and relaxing its speed, thesound rises and falls like the loud wail of a changingwind. § 4. Musical Sounds produced by a Tuning-fork. Various other means may be employed to throw theair into a state of periodic motion. A stretched stringpulled aside and suddenly… … resin of the bow enables the hairs to grip the prong,which is thus pulled aside. But the resistance of theprong soon becomes too strong, and it starts suddenlyback; it is, however, immediately laid hold of again bythe bow, to start back once more as soon as its resistancebecomes great enough. This…
Sound
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.
