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 63
Сторінка 5
... bright light should be produced . But in a petroleum lamp , the introduction of a moderate quantity of air , by effecting the combustion of the superfluous particles of carbon , causes a higher degree of heat , and con- sequently a more ...
... bright light should be produced . But in a petroleum lamp , the introduction of a moderate quantity of air , by effecting the combustion of the superfluous particles of carbon , causes a higher degree of heat , and con- sequently a more ...
Сторінка 6
... bright . 4. If more oxygen be admitted than is necessary to produce the greatest degree of illumination , the brilliancy of the flame is diminished , but its heat becomes correspondingly increased in intensity . If a bundle of iron wire ...
... bright . 4. If more oxygen be admitted than is necessary to produce the greatest degree of illumination , the brilliancy of the flame is diminished , but its heat becomes correspondingly increased in intensity . If a bundle of iron wire ...
Сторінка 9
... bright than the carbon points themselves ; the particles of carbon of which it is composed detach themselves from the positive pole , which is the hottest of the two , and fly across to the negative pole . As a result of this , after a ...
... bright than the carbon points themselves ; the particles of carbon of which it is composed detach themselves from the positive pole , which is the hottest of the two , and fly across to the negative pole . As a result of this , after a ...
Сторінка 15
... bright body which possesses innumerable luminous points , we must , in order to know the nature of the shadow , imagine a shadow cone for each luminous point ; the space behind the opaque body which is common to all these cones receives ...
... bright body which possesses innumerable luminous points , we must , in order to know the nature of the shadow , imagine a shadow cone for each luminous point ; the space behind the opaque body which is common to all these cones receives ...
Сторінка 20
... bright spot ( a ) which , in conse- quence of the rectilinear course of the rays of light is only illuminated with the light of the point A , whilst no other part of the screen can receive light from this point . In the same way , the ...
... bright spot ( a ) which , in conse- quence of the rectilinear course of the rays of light is only illuminated with the light of the point A , whilst no other part of the screen can receive light from this point . In the same way , the ...
Загальні терміни та фрази
absorption æther angle of incidence angle of refraction aperture appears axis of incidence beam body bright lines carbon points centre circle colour concave lens concave mirror conjugate points consequently convex lens corresponding Crown 8vo crystal dark lines Demy 8vo difference of path diffraction direction double refraction electric emergence equal fall fasciculus Fcap flame flint glass fluorescence focal distance focus Heliostat Iceland spar illuminated incident ray index of refraction lamp lenses luminous point medium metal Nicol Nicol's prism object observed obtained particles pass perpendicular placed plane of vibration polariscope position principal plane prism propagated Quartz radius ray of light rays proceeding real image reflected rays reflexion refracting angle refrangible right angles rotated screen Second Edition seen shadow side slit Sodium solar spectrum source of light spectra surface telescope thickness tion traverse tube undergoes vapour velocity vertical violet virtual image vols whilst yellow
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