"Undulatory theory" Quotes from Famous Books
 ... competent to do all that is required of it to produce natural species.... I adopt Mr. Darwin's hypothesis, therefore, subject to the production of proof that physiological species may be produced by selective breeding; just as a physical philosopher may accept the undulatory theory of light, subject to the proof of the existence of the hypothetical ether; or as the chemist adopts the atomic theory, subject to the proof of the existence of atoms; and for exactly the same reasons, namely, that it has an immense amount of ...
— Thomas Henry Huxley; A Sketch Of His Life And Work • P. Chalmers Mitchell
... ruled out of court, the two former classes, at least, justly enough. Now official science apparently regards all the long and universally rumoured abnormal occurrences as in the same category with Keely's Motor, and Perpetual Motion, not as in the same category with the undulatory theory of light, or the theory of the circulation of the blood. Clairvoyance, or ghosts, or suspensions of the law of gravitation, are things so widely contradictory of general experience and of ascertained laws, that they are pronounced ...
— Cock Lane and Common-Sense • Andrew Lang
... variance with fact, which nevertheless did great things for the advancement of astronomical knowledge. Kepler was the wildest of guessers. Newton's corpuscular theory of light was of much temporary use in optics, though nobody now believes in it; and the undulatory theory, which has superseded the corpuscular theory and has proved one of the most fertile of instruments of research, is based on the hypothesis of the existence of an 'ether,' the properties of which are defined in propositions, some of which, to ordinary ...
— The Advance of Science in the Last Half-Century • T.H. (Thomas Henry) Huxley
... luciferous element, which element I suppose to be diffused throughout the boundless regions of space."[349] The nature of light is however still as great a mystery as when Job demanded, "Where is the way where light dwelleth?" The undulatory theory of light, now generally accepted, assumes that light is caused by the vibrations of the ether in a plane transverse to the direction of propagation. In order to transmit motions of this kind, the parts of the luminiferous ...
— Fables of Infidelity and Facts of Faith - Being an Examination of the Evidences of Infidelity • Robert Patterson
... Scriptores Optici, London, 1823, 4to, edited for the veteran of ninety-two by Mr. Babbage[469] at twenty-nine. This excellent volume contains James Gregory, Des Cartes, Halley, Barrow, and the optical writings of Huyghens, the Principia of the undulatory theory. It also contains, by the sort of whim in which such men as Maseres, myself, and some others are apt to indulge, a reprint of "The great new Art of weighing Vanity,"[470] by M. Patrick Mathers, ...
— A Budget of Paradoxes, Volume I (of II) • Augustus De Morgan |
