...to the illustration of the coffin-makers, and will now assume that the slower workman, B, makes 100 blows in a minute, whereas the quicker workman, A,...it from one or two simple examples, have omitted to see a curious theoretical difficulty that attends it. Let us go a step further, and suppose the higher...

...strengthen, sometimes weaken each other ; beats are thus obtained, the number of which per second corresponds to the difference of the number of vibrations per second of the two notes produced by the sirens. If the twelve holes of the two discs be kept in action, and the blower...

...strengthen, sometimes weaken each other ; beats are thus obtained, the number of which per second corresponds to the difference of the number of vibrations per second of the two notes produced by the sirens. If the twelve holes of the two discs be kept in action, and the blower...

...more frequent. 45. Determine rate of loaded fork with monochord (23), knowing that of unloaded. Show that the number of beats per second is equal to the difference between the numbers of vibrations per second of the two forks. 46. Increase the load on one fork till...

...places where the waves counteract each other, and therefore two beats in each second. Hence the rule that the number of beats per second is equal to the difference between t/ie rates of vibration of the notes. ' It is found practically that it is not necessary for...

...places where the waves counteract each other, and therefore two beats in each second. Hence the rule that the number of beats per second is equal to the difference between tlte rates of vibration of tke notes. It is found practically that it is not necessary for...

...general, beats are produced by two musical sounds of nearly the same pitch emitted at the same time. The number of beats per second is equal to the difference of the rates of vibration. Beats are frequently heard in the sound of church bells, and in the lower octaves...

...alternate increase and diminution in volume, is produced. This is called the beating of the tones, and the number of beats per second is equal to the difference of the vibration number of the two tones. F1o. 8. — OEGAN TONOMETER FOE TESTING FOR APPRECIATION FOR DIFFERENCES...

...the component sounds differ very little ill pitch, — that is, in vibration rates. It has been found that the number of beats per second is equal to the difference in the vibration rates of the two beating sounds. But the ear cannot distinctly separate more than...

...subsidence of sound must occur twenty times during the second, and twenty beats are produced. Therefore, the number of beats per second is equal to the difference of the vibration rates of the two sounds. . VIII. PITCH. 204. Musical Sounds are those which are pleasant...