"Undulatory" Quotes from Famous Books
 ... with which their names are coupled. Among these may be cited Copernicus' theory of the earth's movement, Lamarck's classification of vertebrate and invertebrate animals, the laws of friction, the laws of combustion and respiration, the elevation of the continents, the laws of gravitation, the undulatory theory of light and heat, steam as a motive power in navigation, flying machines, the invention of the camera obscura, magnetic attraction, the use of the stone saw, the system of canalisation, breech loading cannon, the construction of fortifications, ...
— Leonardo da Vinci • Maurice W. Brockwell
... Benjamin until after Huxley had completed his "forcible and eloquent" answer to the scientific part of the Bishop's argument, and proceeded to make his famous retort. (The "Athenaeum" reports him as saying that Darwin's theory was an explanation of phenomena in Natural History, as the undulatory theory was of the phenomena of light. No one objected to that theory because an undulation of light had never been arrested and measured. Darwin's theory was an explanation of facts, and his book was full of new ...
— The Life and Letters of Thomas Henry Huxley Volume 1 • Leonard Huxley
... directly demonstrable that light consists of waves of some kind or other, and that these waves travel at a certain well-known velocity, seven times the circumference of the earth per second, taking eight minutes on the journey from the sun to the earth. This propagation in time of an undulatory disturbance necessarily involves a medium. If waves setting out from the sun exist in space eight minutes before striking our eyes, there must necessarily be in space some medium in which they exist and which conveys them. ...
— Scientific American Supplement, No. 717, September 28, 1889 • Various
... Spaniards. An undulatory shock consists of one or several waves, the movement to and fro being along a nearly horizontal line; a subsultory shock of movements in a nearly vertical direction; while a vorticose shock consists of undulatory or subsultory movements crossing one ...
— A Study of Recent Earthquakes • Charles Davison
... phenomenal is light. Unlike sound-waves, whose transmission requires air or other material media, light-waves pass freely through the vacuum of interstellar space. Even the hypothetical ether, held as the interplanetary medium of light in the undulatory theory, can be discarded on the Einsteinian grounds that the geometrical properties of space render the theory of ether unnecessary. Under either hypothesis, light remains the most subtle, the freest from material dependence, ...
— Autobiography of a YOGI • Paramhansa Yogananda
... 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 ...
— Thomas Henry Huxley; A Sketch Of His Life And Work • P. Chalmers Mitchell
... have been carried out to catalogue (according to their wave-length on the undulatory theory of light) all the lines of each chemical element, under all conditions of temperature and pressure. At the same time, all the lines have been catalogued in the light of the sun and the ...
— History of Astronomy • George Forbes
... of one of the most picturesquely diversified regions on the American continent. Broad plains, numerous groups and ranges of hills and forest-clad mountains, deep river gorges, and valleys of practically every conceivable form are strewn to the point of prodigality over this vast undulatory area. ...
— History and Comprehensive Description of Loudoun County, Virginia • James W. Head
... evidence, save the explanation they are calculated to afford of some of the phenomena; but they are supposed to produce their effects according to known laws: the ordinary laws of continued locomotion in the one case, and in the other those of the propagation of undulatory movements among the particles of an ...
— A System Of Logic, Ratiocinative And Inductive • John Stuart Mill
... brilliantly white, and in various places pink, red and light-blue screens mellowed it into an artistic effect that was very soothing to the eye. The ceiling was hung with festoons of prisms as brilliant as the purest diamonds, and in them, owing to the gently undulatory movement of the vessel, colors more beautiful than those of a rainbow played entrancingly. Rare pictures in frames of delicate gold were interspersed among the clusters of prisms, and the floor was covered with carpets that felt as soft beneath ...
— The Land of the Changing Sun • William N. Harben
... polarising angles as ordinarily defined, but the polarisation of the beam, by the incipient cloud, has thus far proved itself to be absolutely independent of the polarising angle. The law of Brewster does not apply to matter in this condition, and it rests with the undulatory theory to explain why. Whenever the precipitated particles are sufficiently fine, no matter what the substance forming the particles may be, the direction of maximum polarisation is at right angles to the illuminating ...
— Fragments of science, V. 1-2 • John Tyndall |
