The Problem of Human Life: Embracing the "evolution of Sound" and "evolution Evolved," with a Review of the Six Great Modern Scientists, Darwin, Huxley, Tyndall, Haeckel, Helmholtz, and MayerHall, 1880 - 512ÆäÀÌÁö |
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75 ÆäÀÌÁö
... air - waves , it did not occur to this learned investigator that air - waves themselves , as the means of sound - propa- gation , were a pure fallacy of science , without one fact , or , when fully analyzed , appearance of fact , to ...
... air - waves , it did not occur to this learned investigator that air - waves themselves , as the means of sound - propa- gation , were a pure fallacy of science , without one fact , or , when fully analyzed , appearance of fact , to ...
77 ÆäÀÌÁö
... air - waves , " and the intervals occur- ring between them " wave - lengths , " which determine , in the same manner as I have described , the pitch of tone . If the vibra tory motions of the instrument be slow , the air - waves ...
... air - waves , " and the intervals occur- ring between them " wave - lengths , " which determine , in the same manner as I have described , the pitch of tone . If the vibra tory motions of the instrument be slow , the air - waves ...
79 ÆäÀÌÁö
... air into these condensations and rare- factions , and they , as they are formed , propagate themselves in succession ... waves which strike the ear in a second , The loudness or intensity of a note depends on the distance within which the ...
... air into these condensations and rare- factions , and they , as they are formed , propagate themselves in succession ... waves which strike the ear in a second , The loudness or intensity of a note depends on the distance within which the ...
80 ÆäÀÌÁö
... air - waves or the undulatory motions of any inter- vening substance whatever , as they will pass through platinum , gold , or sheets of water , without the slightest disturbance of their particles , and still move the iron be- yond ...
... air - waves or the undulatory motions of any inter- vening substance whatever , as they will pass through platinum , gold , or sheets of water , without the slightest disturbance of their particles , and still move the iron be- yond ...
81 ÆäÀÌÁö
... air- waves " moulded , " " carved , " and sent off by its oscillations , which are exactly the same whether such string is connected with the sounding - board or not . If the air - waves are really moulded and sent off by the harp ...
... air- waves " moulded , " " carved , " and sent off by its oscillations , which are exactly the same whether such string is connected with the sounding - board or not . If the air - waves are really moulded and sent off by the harp ...
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absolutely absurdity admit air-particles air-waves amplitude animals argument atmosphere atoms cause compressed condensations and rarefactions constituting corporeal corpuscles Darwin demonstrated distance drum-skin embryo entirely evidence evolution evolutionists exactly existence explain fact feet a second force fork gemmules Haeckel heat Hence human Huxley hypothesis inches intelligent intelligent design iron Joseph Cook logical marsupial mechanical ment mind monera moneron natural selection necessarily organism Origin of Species orohippus oscillation over-tones ovule pangenesis pantheism particles phenomena philosophical physical physicists pitch produced Prof Professor Helmholtz Professor Tyndall prong prove pulses rarefactions reader reason result scientific single siren sonorous soul sound-pulse sound-waves species spontaneous stridulation string structure substance substantial supposed sympathetic vibration teaches theory of descent thing tion tone transmutation true truth tube tuning-fork tympanic membrane undulatory unison velocity of sound vibrational number vital and mental water-waves wave-length wave-motion wave-theory of sound waves
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29 ÆäÀÌÁö - That gravity should be innate, inherent and essential to matter so that one body may act upon another at a distance through a vacuum, without the mediation of anything else, by and through which their action and force may be conveyed from one to another is to me so great an absurdity that I believe no man who has in philosophical matters a competent faculty of thinking can ever fall into...
452 ÆäÀÌÁö - If such do occur, can we doubt (remembering that many more individuals are born than can possibly survive) that individuals having any advantage, however slight, over others, would have the best chance of surviving and of procreating their kind?
452 ÆäÀÌÁö - Several writers have misapprehended or objected to the term Natural Selection. Some have even imagined that natural selection induces variability, whereas it implies only the preservation of such variations as arise and are beneficial to the being under its conditions of life.
396 ÆäÀÌÁö - Not one man in a thousand has accuracy of eye and judgment sufficient to become an eminent breeder. If gifted with these qualities, and he studies his subject for years, and devotes his lifetime to it with indomitable perseverance, he will succeed, and may make great improvements ; if he wants any of these qualities, he will assuredly fail.
263 ÆäÀÌÁö - In the earlier ages of the church it held that the earth was the center of the universe, and that the sun. moon, and stars revolved around it.
445 ÆäÀÌÁö - And as Natural Selection works solely by and for the good of each being, all corporeal and mental endowments will tend to progress towards perfection.
513 ÆäÀÌÁö - I may be permitted to say, as some excuse, that I had two distinct objects in view : firstly, to show that species had not been separately created ; and, secondly, that natural selection had been the chief agent of change, though largely aided by the inherited effects of habit, and slightly by the direct action of the surrounding conditions.
447 ÆäÀÌÁö - Natural selection acts only by the preservation and accumulation of small inherited modifications, each profitable to the preserved being...
102 ÆäÀÌÁö - Imagine one of the prongs of the vibrating fork swiftly advancing. It compresses the air immediately in front of it, and when it retreats it leaves a partial vacuum behind, the process being repeated at every subsequent advance and retreat.
472 ÆäÀÌÁö - Hence there can be no doubt that the quagga affected the character of the offspring subsequently begot by the black Arabian horse.