Hence the rule has been derived, that the number of beats per second is equal to the difference of the number of vibrations per second of the two sounds. Nature - Side 211redigert av - 1876Uten tilgangsbegrensning - Om denne boken
| Sir Norman Lockyer - 1876 - 558 sider
...to the illustration of the coffin-makers, and will now assume that the slower workman, B, makes loo **blows in a minute, whereas the quicker workman, A,...it from one or two simple examples, have omitted to** sec a curious theoretical difficulty that attends it. Let us go a step further, and suppose the higher... | |
| Pietro Blaserna - 1876 - 212 sider
...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... | |
| Pietro Blaserna - 1876 - 256 sider
...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... | |
| Frederick Guthrie - 1879 - 180 sider
...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... | |
| George Grove - 1879 - 802 sider
...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... | |
| George Grove - 1880 - 778 sider
...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... | |
| Adolphe Ganot - 1881 - 550 sider
...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... | |
| James Kerr Love, William Hall Addison - 1896 - 398 sider
...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... | |
| Le Roy Clark Cooley - 1897 - 480 sider
...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... | |
| Henry Smith Carhart, Horatio Nelson Chute - 1901 - 464 sider
...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... | |
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