The Nature of Light, with a General Account of Physical OpticsHenry S. King & Company, 1875 - 356 стор. |
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Результати 1-5 із 43
Сторінка 19
... beam of the sun's rays be allowed to enter a chamber through a wide opening in the window shutter , it may be easily followed by the illumination of the floating particles of dust , and it may be shown that it has everywhere the same ...
... beam of the sun's rays be allowed to enter a chamber through a wide opening in the window shutter , it may be easily followed by the illumination of the floating particles of dust , and it may be shown that it has everywhere the same ...
Сторінка 26
... beam of parallel rays of light from the sun be allowed to pass obliquely through an opening in the window shutter ( fn , fig . 14 ) and to fall upon the plane surface of mercury at rest ( s s ' ) , it will be seen that from the point ...
... beam of parallel rays of light from the sun be allowed to pass obliquely through an opening in the window shutter ( fn , fig . 14 ) and to fall upon the plane surface of mercury at rest ( s s ' ) , it will be seen that from the point ...
Сторінка 28
... beam of parallel rays be allowed to pass through the slit and fall on the mirror , the reflexion will illuminate and make visible that part of the circumference of the circle towards which it is directed . The indicator c now stands ...
... beam of parallel rays be allowed to pass through the slit and fall on the mirror , the reflexion will illuminate and make visible that part of the circumference of the circle towards which it is directed . The indicator c now stands ...
Сторінка 34
... beams of light can be made to travel in the desired horizontal direction . 19. The principle of the method , based on ... beam of the parallel rays of the sun , directed into the chamber through a vertical slit by means of a Heliostat ...
... beams of light can be made to travel in the desired horizontal direction . 19. The principle of the method , based on ... beam of the parallel rays of the sun , directed into the chamber through a vertical slit by means of a Heliostat ...
Сторінка 40
... beam of parallel solar rays , thrown horizontally into the chamber by means of the Heliostat , be allowed to fall upon a concave mirror with small aperture parallel to its axis ( fig . 26 ) , it will be seen - for the path of the rays ...
... beam of parallel solar rays , thrown horizontally into the chamber by means of the Heliostat , be allowed to fall upon a concave mirror with small aperture parallel to its axis ( fig . 26 ) , it will be seen - for the path of the rays ...
Загальні терміни та фрази
absorption æther angle of incidence angle of refraction aperture appears beam blue body bright lines carbon points centre circle colour consequently convex convex lens corresponding Crown 8vo crown glass crystal dark lines Demy 8vo difference of path diffraction direction double refraction elementary waves equal exhibit fasciculus Fcap flame flint glass fluorescence focal distance green half wave-length Heliostat homogeneous Iceland spar illuminated Illustrations incident rays index of refraction International Scientific Series lens lenses luminous point marginal rays metal Nicol's prism object observed optic axis parallel particles pass perpendicular phenomena placed plane of vibration polariscope polarised ray position Post 8vo principal plane prism propagated Quartz ray of light reflected reflexion refracted ray refracting angle refrangible regarded right angles rotated screen Second Edition seen slit Sodium solar spectrum source of light spectra surface telescope thickness tion traverse tube undulatory vapour velocity vertical violet vols whilst yellow
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