the unity of natural phenomena1873 |
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appear atmospheres attractive forces becomes bismuth Boucheporn calorific carbon carbonic acid cause cell centre chemical action chemical affinity cohesion colors conceive conception conductor cules degree Descartes direction distance duced effect electric current electric unit elements endowed ethereal atoms experiments facts Father Secchi fluid galvanometer gaseous gases gravity heat-units heavenly bodies Hirn hundred hydrogen hypothesis idea Joule Jupiter Kepler kilogramme kilogrammetres law of Kepler laws Leucippus light liquid living force luminous luminous ray manner mass matter mechanical equivalent medium millimetres molecular molecules motion muscle necessary nerve Newton nomena observed orbit oxygen pass phenomenon physical forces physical science physicists planetary planets poles possess present principle produced propagated quantity of heat regard retina rotation shock solar sorbed sound space spectrum substance take place temperature theory tion transformation tricity tube unity universe velocity vibrations vis viva vols waves
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Página 21 - Natural History must, in good time, become the analysis of the thoughts of the Creator of the Universe, as manifested in the animal and vegetable kingdoms, as well as in the inorganic world.
Página 38 - The motion of heavy bodies no longer appears to us other than as a transformation of the aetherial motions ; and gravity henceforth enters into that majestic unity to which we have conducted all physical forces. . . . Are there then strictly speaking, two kinds of matter ? We can hardly conceive it, now that we have resolved everything into motion. In what respect would these two kinds of matter differ ? Would not the one be subject to the same laws of motion as the other ? Can there be two systems...
Página 77 - ... in imagining all space to be filled with jelly. You must imagine the atoms vibrating, and their vibrations you must figure as communicated to the ether in which they swing being propagated through it in waves. These waves enter the pupil, cross the ball of the eye, and 'break upon the retina at the back of the eye. The act, remember, is as real, and as truly mechanical as the breaking of the sea- waves upon the shore. Their motions are communicated to the retina, transmitted thence along the...