The Nature of Light, with a General Account of Physical OpticsHenry S. King & Company, 1875 - 356 стор. |
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Сторінка 2
... termed incan- descence , and the self - luminous worlds , as the sun and fixed stars , are doubtless in a condition of intense in- candescence . All artificial sources of light depend upon the development of light during incandescence ...
... termed incan- descence , and the self - luminous worlds , as the sun and fixed stars , are doubtless in a condition of intense in- candescence . All artificial sources of light depend upon the development of light during incandescence ...
Сторінка 5
... the flame . A burner constructed with this object in view is here shown ( fig . 2 , ) and is termed the oxygen lamp or burner . In this burner coal - gas FIG . 2 . flows through the upper horizontal tube SOURCES OF LIGHT . 5.
... the flame . A burner constructed with this object in view is here shown ( fig . 2 , ) and is termed the oxygen lamp or burner . In this burner coal - gas FIG . 2 . flows through the upper horizontal tube SOURCES OF LIGHT . 5.
Сторінка 15
... luminous point ; the space behind the opaque body which is common to all these cones receives no rays from the luminous body and is termed the nucleus of the shadow ; but this is surrounded by RECTILINEAR PROPAGATION OF LIGHT . 15.
... luminous point ; the space behind the opaque body which is common to all these cones receives no rays from the luminous body and is termed the nucleus of the shadow ; but this is surrounded by RECTILINEAR PROPAGATION OF LIGHT . 15.
Сторінка 16
... termed the half shadow or penumbra . Fig . 8 shows the case of a large luminous sphere , A , opposite which is a smaller opaque one , B ; the simple construction shows what determines B พ Shadow nucleus , and penumbra . the limits of ...
... termed the half shadow or penumbra . Fig . 8 shows the case of a large luminous sphere , A , opposite which is a smaller opaque one , B ; the simple construction shows what determines B พ Shadow nucleus , and penumbra . the limits of ...
Сторінка 18
... termed the parallax of the sun ; and from thence the calculation has been made that the distance of the earth from the sun amounts to 24,000 semidiameters of the earth , and after this distance is determined it results , from the visual ...
... termed the parallax of the sun ; and from thence the calculation has been made that the distance of the earth from the sun amounts to 24,000 semidiameters of the earth , and after this distance is determined it results , from the visual ...
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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