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Seite 301 - What kind of action or disposition this is, whether it consists in a circulating or a vibrating motion of the ray or of the medium or something else, I do not here inquire.
Seite 346 - Tis true, that from theory I argue the corporeity of light; but I do it without any absolute positiveness, as the word ' perhaps' intimates; and make it at most but a very plausible consequence of the doctrine, and not a fundamental supposition, nor so much as any part of it."— (Phil.
Seite 281 - Pope," because he never proved fallible in any of his numerous experiments or of his subtle theoretical speculations ; Jenner, lastly, whose discovery I have no need to extol in the presence of fathers of families.
Seite 348 - ... arm a large quarto volume. This was the first volume of the Natural Philosophy. She placed it on the table, and without saying a word opened it at page 787, and pointed with her finger to a diagram in which the curvilinear route of the diffracted bands, on which the discussion turned, was theoretically established.
Seite 324 - Young to different hieroglyphics could only rest on readings which had not, as yet, been made, and which could not then be made. From want of knowing the composition of white light, Hooke had not an exact idea of the nature of interferences, as Young on his part deceived himself by an imagined syllabic or dissyllabic value of hieroglyphics. Young, by unanimous consent, is regarded as the author of the theory of interferences. Thence, by a parity of reasoning which seems to me inevitable, Champollion...
Seite 287 - Calligraphia Grceca. He was not long, however, in perceiving the immense superiority of one of his pupils, and he recognized, with praiseworthy modesty, that in their common studies the true tutor was not always he who bore that title. At this period Young drew up, continually referring to the original sources, a detailed analysis of the numerous systems of philosophy which were professed in the different schools of Greece.! His friends spoke of this work with the most lively admiration. I know not...
Seite 327 - ... (p. 337.) Dr. Young displayed singular modesty and forbearance in his controversy with Champollion, treating him throughout with all the respect due to his acknowledged eminence, and while mildly reproaching him with omitting to give him the due credit for his own share in the research, yet in no way insinuating that any discreditable motive led to the omission. Dr. Peacock, however, thinks a far more stringent tone of criticism might have fairly applied ; he takes up the cause of Young with...
Seite 291 - The wish to see his name inscribed iu the list of fellow-laborers in this truly national collection beside the names of Newton, Bradley, Priestley, and Cavendish, has always been among the students of the celebrated universities of Cambridge, Oxford, Edinburgh, and Dublin* the most anxious as well as legitimate object of emulation. Here is always the highest point of ambition of the man of science...
Seite 323 - ... one hand the lively discussion to which the age of these monuments had given rise completely terminated ; on the other, we observe it established beyond question that under the Roman dominion hieroglyphics were still in full use on the banks of the Nile. The alphabet which had given such unhoped-for results, whether applied to the great obelisks at Karnac, or to other monuments which are also recognized as being of the age of the Pharaohs, presents to us the names of many other kings of this...
Seite 213 - Fresnel had obtained their joint experimental results, of the non-interference of oppositely polarized pencils, and when Fresnel pointed out that transverse vibrations were the only possible translation of this fact into the undulatory theory, he himself protested that he had not courage to publish such a conception ; and accordingly, the second part of the Memoir was published in Fresnel's name alone.