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 27
Сторінка 19
... completely darkened , and a very small opening of from 1-3 millimètres ( th — 1th of an inch ) be made in the shutter , a very pretty appearance may be observed upon a paper screen placed opposite to the opening . The neighbouring ...
... completely darkened , and a very small opening of from 1-3 millimètres ( th — 1th of an inch ) be made in the shutter , a very pretty appearance may be observed upon a paper screen placed opposite to the opening . The neighbouring ...
Сторінка 116
... completely homogeneous , since in addition to the red , it contains an orange - coloured constituent which is refracted more strongly than the red of the Lithium and yet less strongly than the yellow of Sodium . The Indium further shows ...
... completely homogeneous , since in addition to the red , it contains an orange - coloured constituent which is refracted more strongly than the red of the Lithium and yet less strongly than the yellow of Sodium . The Indium further shows ...
Сторінка 138
... completely remove the deflection . We obtain therefore upon the screen a white image of the slit deflected to one side . In the combination of the two prisms we thus possess a prism causing no dispersion of colour , or an achromatic ...
... completely remove the deflection . We obtain therefore upon the screen a white image of the slit deflected to one side . In the combination of the two prisms we thus possess a prism causing no dispersion of colour , or an achromatic ...
Сторінка 139
... completely abolish the dispersion of the former , and the combined prism is not completely achromatic . The very small dispersion of colour that still remains can only be removed by a properly selected thicker prism ,. ACHROMATISM . 139.
... completely abolish the dispersion of the former , and the combined prism is not completely achromatic . The very small dispersion of colour that still remains can only be removed by a properly selected thicker prism ,. ACHROMATISM . 139.
Сторінка 150
... its feeble red stain is completely overpowered and concealed by the brilliant yellow of the Sodium . The spectroscope , however , shows distinctly the red line of Lithium close to the yellow Sodium line , each 150 OPTICS .
... its feeble red stain is completely overpowered and concealed by the brilliant yellow of the Sodium . The spectroscope , however , shows distinctly the red line of Lithium close to the yellow Sodium line , each 150 OPTICS .
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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