Show The Curiosities of Sound In the very high or mountainous regions sounds become diminished in Tmifl I ness so that t a conversation cannot be carried on in I ton 10t an carrlel ordinary tone of voice in inlnes or In I adivine bell the reverse of this Is 11ln I Inl bel the case Speech becomes so staitling that It must be carried on In whispers to bo at l endurable to tho car Sounds of all kinds bcoonfe musical if the vibrations of air are uniform and rapid enough It Is said that the puffs o an engine would make < tremendous tremen-dous organ peal of music If they could be made to attain the rapidity of fifty or sixty I second nto rapldty fty Everything In nature has Us keynote an It Is = were and attuned to one par ticular musical sound The fact can be very easily verified in everyday life Stand near an open piano and speak in an ordinary tone while speaking you 1 will suddenly hear a airing within 1 Yevcrberatc to your voice The tick of a wctch tlc sound of every human voice the bark of r dog the mew tck of a cat I the noise of a wagon the roll of thunder tJt N the fall of rol rain < faU 1011 the running of water Sis fuel evorything about us can easily bo placed bY an nltentve runnlnE car on its proper musical noteone of the sounds or of the scale This is I a moot Interesting experiment and easily verlllcd SIt a Intercstn S S-It Is said that the car can distinguish thll eleven Ils dlRlnEulsh octavos of sound but rule an a ocaves ot onl those made by quick short vibrations arc more Vbtlltons easily conveyed For instance the whirr of a locust makes moro distinct impression Jiot dlstnct imrneMlon than the sighing tho wild through the trees A whirlwind In its whl1whHl is approach Is noiseless it Is only when It strikes some obstacle that the volume of o sound becomes terrific to us Then we receive the secondary shorter waves from the destruction of this ob btacle Tyndall says nil friction 5 Is 1 Tyndnl al irlcton rhythmic Flames are sensitive to sound They will bend and flicker and oven respond with notoriously a leap of quivering light to I high shrill sound This Ls another Interesting qulvernn use a glass s tube with a small Jet of I tth tu1J smal Jet gas by lowering or raising it to certain points we can cauue it to shriek I IIClnts out shrilly or to answer shrll answO sympathetically to Its own Keynote when sung or spoken by the voice mpathetcnlJ I J |