Tyndall, John, 1820-1893 · London : Longmans, Green · leaf 401
bolic curves ; and this mustbe their character according to the principle of interference. This remarkable case of interference, which was firstnoticed by Dr. Thomas Young, and thoroughly investi-gated by the brothers Weber, may be rendered audibleby means of resonance. Bringing a vibrating fork… … ings of the sound accompanying the forks rotation. Whilethe fork is over the jar with its corner downwards, andthe sound entirely extinguished, let a pasteboard tube bepassed over one of its prongs, as in fig. 174, a loud re-sonance announcesthe withdrawal ofthe vibrations ofthat prong. To ob-tain…
Sound
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer01inte-19-1.webp)
