Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 127
f the prongs can frequently be seen withthe eye, but if a needle point be attached to the fork by a bit of wax, and Lthe pointbe drawn along apiece of smokedpaper, the vibra-tions develope asinuous line; thenby attaching it tosome instrument,as a revolving cyl-inder, which movesit uniformly,… … 118 ACOUSTICS. Section II.—The Theoky of Music. 416. The Fundamental Note. A musical instrument isin tune when different notes harmonize. Two instrumentsare in tune with each other when any one note upon bothis produced by the same number of vibrations. Since thetuning of instruments is thus purely…
Physics
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