 | John Tyndall - 1867 - 372 páginas
...swaying to and fro. Thus, also, we send sound through the air, and shake the drum of a distant ear, while each particular particle of the air concerned in the...transmission of the pulse makes only a small oscillation. Scientific education ought to teach us to see the invisible as well as the visible in nature ; to picture... | |
 | Bernard Cracroft - 1868 - 348 páginas
...swaying to and fro. Thus, also, we send sound through the air, and shake the drum of a distant ear, while each particular particle of the air concerned in the...transmission of the pulse makes only a small oscillation." Professor Tyndall adds : — " Scientific education ought to teach us to see the invisible as well... | |
 | 1876 - 848 páginas
...swaying to and fro. Thus, also, we send sound through the air, and shake the drum of a distant ear, while each particular particle of the -air concerned in...transmission of the pulse makes only a small oscillation.* Ina similar way the particles of air which fill the cavity of the ear are finally driven against the... | |
 | Alexander Wilford Hall - 1878 - 300 páginas
...swaying to -and fro. Thus also we send sound through the air and shake the drum of the distant ear, while each particular particle of the air concerned in the...illustrations prevents one from suspecting that, so far from seriously intending them as a pertinent inculcation of scientific truth, he was adroitly attempting... | |
 | Elroy McKendree Avery - 1878 - 480 páginas
...swaying to and fro. Thus also we send sound through the air, and shake the drum of a distant ear, while each particular particle of the air concerned in the...transmission of the pulse makes only a small oscillation." 423. Sound Waves. — The layers of air are crowded more closely together by each outward vibration... | |
 | 1883 - 402 páginas
...he says: " Thus, also, we si'inl sound through the air, and shake the drum of the distant ear, while each particular particle of the air concerned in the...transmission of the pulse makes only a small oscillation." Here, according to this renowned author, sound is a something sent out through the air by the sounding... | |
 | Elroy McKendree Avery - 1885 - 616 páginas
...sound through the air, and shake the drum of a distant ear, while each particular particle of the ai r concerned in the transmission of the pulse makes only a small oscillation." (See First Prin., Exps. 141-144.) 485. Sound Waves. — The layers of air are crowded more closely... | |
 | Elroy McKendree Avery - 1895 - 630 páginas
...swaying to and fro. Thus also we send sound through the air, and shake the drum of a distant ear, while each particular particle of the air concerned in the...transmission of the pulse makes only a small oscillation." The Medium of Sound. Experiment 102. — Place a small music box or alarm clock on a thick layer of... | |
 | Elroy McKendree Avery, Charles Peter Sinnott - 1897 - 168 páginas
...swaying to and fro. Thus also we send sound through the air, and shake the drum of a distant ear, while each particular particle of the air concerned in the...transmission of the pulse makes only a small oscillation." The distance through which the individual particle swings is called the amplitude of vibration. In... | |
 | Don Glass - 1996 - 222 páginas
...to and fro. "Thus, also, we send sound through the air, and shake the drum of a distant ear, while each particular particle of the air concerned in the...transmission of the pulse makes only a small oscillation." If you try John Tyndall's demonstration yourself, you'll see that each person in line can't help pushing... | |
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... would have broken the glass ; had he been close to a drum-head he would have shaken the drum. We could thus transmit a push through a row of a hundred boys, each particular boy, however, only swaying to and fro. Thus, also, we send sound through the... 