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affinity amplitude analogy argument atoms battery believe Bunsen cell cause cell chemical affinity compressible condensation corpuscles diaphragm difference distance Doctor says doctrine elasticity electric current electricity electro-motive force electrolytic cell energy equal experiment explain fact feet fork galvanometer give given gravitation Hall says Hall's book heard heat hence immaterial inches incidental air waves instrument intensity iron length light locust loud luminiferous ether magnetism mass material measure membrane miles mind mode of motion molecular molecule move Natural Philosophy nature odor organ pipe particles pass philosophy phonograph physical physicists pitch placed platinum produce Prof prongs propagation rarefaction ratio reason resonant jar rheostat Scientific Arena seen sound-waves sounding body substance substantial substantialists supposed telephone theory of sound things thought tion tone tricity tube tuning-fork Tyndall velocity of sound vibration volts water-waves wave theory wave-length wave-theory wire words Zetetic
Página 1 - An' set your beauties a' abread ! Ye little ken what cursed speed The blastie 's makin' ! Thae winks and finger-ends, I dread, Are notice takin' ! 0 wad some power the giftie gie us To see oursel's as others see us ! It wad frae monie a blunder free us, And foolish notion : What airs in dress an' gait wad lea'e us, And ev'n devotion ! ROBERT BURNS.
Página 3 - It is hardly necessary to add that anything which any insulated body, or system of bodies, can continue to furnish without limitation, cannot possibly be a material substance; and it appears to me to be extremely difficult, if not quite impossible, to form any distinct idea of anything capable of being excited and communicated in the manner the Heat was excited and communicated in these experiments, except it be MOTION.
Página 145 - And sees them, when the rain is done, On the bridge of colors seven Climbing up once more to heaven, Opposite the setting sun. Thus the Seer, With vision clear, Sees forms appear and disappear, In the perpetual round of strange, Mysterious change From birth to death, from death to birth, From earth to heaven, from heaven to earth ; Till glimpses more sublime Of things, unseen before, Unto his wondering eves reveal The Universe, as an immeasurable wheel Turning forevermore In the rapid and rushing...
Página 27 - This one, you will remember, vibrates 256 times in a second, the length of the sonorous wave which it produces being, therefore, 4 feet 4 inches. The fork is now detached from its case, so that when struck against its pad you hardly hear it. I hold the vibrating fork over this glass jar, AB, fig.
Página 24 - ... from the cannon the velocity of sound rose to a maximum considerably above the ordinary velocity, and then fell gradually to about the velocity usually received.
Página 9 - ... of hearing, which it was supposed to affect in a manner resembling that in which our nostrils are affected when they give us the sensation of smell. Yet, even in those early years of science, there were some, and, in particular, the celebrated founder of the Stoic school, who held that sound, that is, the cause of sound, was only the particular motion of external fross matter, propagated to the ear, and Ihere producing that agitation of the organ by which the soul is immediately affected with...
Página 88 - ... greater or less intensity. Q. 12. On what law or principle does this sound-force travel when thus generated or liberated from the forceelement of Nature? A. By the same law or analogous principle on which I now ask the puzzled reader, who fails to see how the locust can fill an area two miles square with sonorous substance and not appreciably reduce its weight, to tell me, approximately, how much reynard has reduced his feet in size and weight by the clouds of odor diffused along his track for...