 | Mary Somerville - 1834 - 390 páginas
...noises are occasioned by irregular impulses communicated to the ear, and if they be short, sudden, a»d repeated beyond a certain degree of quickness, the...intervals of silence, and the sound appears continuous, because, like the eye, it retains the perception of excitement for a moment after the impulse has ceased.... | |
 | Mary Somerville - 1834 - 666 páginas
...noises are occasioned by irregular impulses communicated to the ear, and if they be short, sudden, and repeated beyond a certain degree of quickness, the...intervals of silence, and the sound appears continuous, because, like the eye, it retains the perception of excitement for a moment after the impulse has ceased.... | |
 | 1842 - 496 páginas
...noises are occasioned by irregular impulses communicated to the ear, and if they be short, sudden, and repeated beyond a certain degree of quickness, the...intervals of silence, and the sound appears continuous. Still such sounds will be mere noise ; in order to produce a musical sound, the impulses, and, consequently,... | |
 | Alexander John Ellis - 1845 - 212 páginas
...rumble, according as its parts are more or less continuous ; and so for other varieties of noise. " The ear, like the eye, retains for a moment of time,...repeated beyond a certain degree of quickness, the car loses the intervals of silence and the sound appears continuous. The frequency of repetition necessary... | |
 | Mary Somerville - 1849 - 568 páginas
...noises are occasioned by irregular impulses communicated to the ear ; and, if they be short, sudden, and repeated beyond a certain degree of quickness, the...intervals of silence, and the sound appears continuous. Still such sounds will be mere noise : in order to produce a musical sound, the impulses, and consequently... | |
 | William Holms Chambers Bartlett - 1859 - 408 páginas
...communicated to it a perception of excitement. »°und produced; If, therefore, a short and sudden impulse he repeated beyond a certain degree of quickness, the...intervals of silence and the sound appears continuous. The probable frequency of repetition necessary for the production of continuous sound is stated to be not... | |
 | William Holms Chambers Bartlett - 1866 - 378 páginas
...communicated to it a perception of excitement. »°™d produced; If, therefore, a short and sudden impulse be repeated beyond a certain degree of quickness,...intervals of silence and the sound appears continuous. The probable frequency of repetition necessary for the production of continuous sound is stated to be not... | |
 | William Clarke - 1880 - 770 páginas
...the ear retains for a moment of time, after the impluse on it has ceased, a perception of excitement, if a sudden and short impulse be repeated beyond a certain degree of quickness, the sound will appear continuous. The frequency of repetition necessary for this production of a continued... | |
 | Adam Smith - 1931 - 376 páginas
[ Lo sentimos, pero el contenido de esta página es de acceso restringido. ] | |
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In consequence, if a sudden and short impulse be repeated beyond a certain degree of quickness, the ear loses the intervals of silence and the sound appears continuous. 