Sound : an elementary text-book for schools and colleges (1913)
Capstick, John Walton, 1858- · leaf 202
he mode corresponding to the deepest tone that the bell cangive out. Pig. 91 represents the mouth of the bell when it is vibratingin this mode; A, B, G, D are the ends of the nodal lines.Between these points there are segments where the rimvibrates rapidly in and out. If at any moment it is… … It is evident that the blow of -ttie^clapper is suited to setup this form of vibration, but it can also be produced inanother way. When for a moment the bell has the shape in which thesegment AB is inside its normal position the length of rimbetween A and B must be less than that between A and…
Sound
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