Keely
"That tuning forks can be so constructed as to show coincident or concordant association with each other, is but a very weak illustration of the fact which governs pure acoustic assimilation. The best only approach a condition of about a fortieth, as regards pure attractive and propulsive receptiveness. By differentiating them to concordant thirds, they induce a condition of molecular bombardment between themselves, by alternate changes of long and short waves of sympathy. Bells rung in vacuo liberate the same number of corpuscles, at the same velocity as those surrounded by a normal atmosphere, and hence the same acoustic force attending them, but are inaudible from the fact that, in vacuo, the molecular volume is reduced. Every gaseous molecule is a resonator of itself, and is sensitive to any and all sounds induced, whether accordant or discordant." [attractive and propulsive receptiveness] [Snell Manuscript - The Book, GRADUATION OF MACHINES, page 5]

See Also

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8.3 - Conventional View of Wave Motion
8.4 - Wave types and metaphors
Compression Wave
etheric wave motion
Geometry and Mathematics of Octave Waves
Longitudinal Wave
nodal wave
Nodal Waves
octave wave
octave wave shaft
Rayleigh Wave
seed of the octave wave
sympathetic polar wave
sympathy
The Octave Wave - painting
Transverse Wave
wave
wave number
wave octave formula
wave plate
waveguide