Elementary Treatise on Natural Philosophy, Volumen4D. Appleton, 1891 |
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Página 861
... centre , 1002. Conjugate foci . Image erect or inverted , enlarged or diminished , 1003. Formulæ , 1004. Conjugate foci on secondary axis , 1005. March of conjugate foci , 1006. Construction for image , 1007. Size of image , 1008 ...
... centre , 1002. Conjugate foci . Image erect or inverted , enlarged or diminished , 1003. Formulæ , 1004. Conjugate foci on secondary axis , 1005. March of conjugate foci , 1006. Construction for image , 1007. Size of image , 1008 ...
Página 862
... centre of gravity , 1073. Cone of colour . Hue , depth , and brightness . Complemen- taries . All hues except purple are spectral , 1074. Three primary colour - sensations , red , green , and violet , 1075. Accidental images , negative ...
... centre of gravity , 1073. Cone of colour . Hue , depth , and brightness . Complemen- taries . All hues except purple are spectral , 1074. Three primary colour - sensations , red , green , and violet , 1075. Accidental images , negative ...
Página 868
... centre of the vibrating segments ; and these heaps will be in a state of violent agitation , with more or less of gyratory movement , as long as the plate is vibrating . This phe- nomenon , after long baffling explanation , was shown by ...
... centre of the vibrating segments ; and these heaps will be in a state of violent agitation , with more or less of gyratory movement , as long as the plate is vibrating . This phe- nomenon , after long baffling explanation , was shown by ...
Página 875
... centres of condensation , and D is a centre of rarefaction . In the third row B is a centre of condensa- tion , and E a centre of rarefaction . In the fifth row the con- densation and rarefaction have advanced by one more letter , and ...
... centres of condensation , and D is a centre of rarefaction . In the third row B is a centre of condensa- tion , and E a centre of rarefaction . In the fifth row the con- densation and rarefaction have advanced by one more letter , and ...
Página 876
... centres of condensation , and the greatest backward velocity at the centres of rarefaction . Each particle has its ... centre , the waves will be spheri- cal ; but this case is exceptional . A disturbance usually produces condensation ...
... centres of condensation , and the greatest backward velocity at the centres of rarefaction . Each particle has its ... centre , the waves will be spheri- cal ; but this case is exceptional . A disturbance usually produces condensation ...
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Términos y frases comunes
achromatic analyser angle of incidence beam body bright lines called centimetres centre coincidence colours concave mirror conjugate foci convex convex lens crystal curvature denote diameter direction distance employed equal experiment eye-piece flame focal length frequency of vibration fundamental note glass harmonics Hence Iceland-spar incident ray index of refraction interval inverted law of sines lens lenses luminous point magnifying power medium metres minimum deviation nearly node normal number of vibrations object object-glass oblique observer obtained octave optical ordinary parallel particles pencil perpendicular pipe pitch placed plane mirror plate polarization portion position principal axis principal focus prism produced propagation radius rarefaction ratio reflected rays refrangibility represented retina rotation screen seen side slit solar spectra spectrum spherical string subtends surface telescope tion tone traversing tube undulation velocity of sound vertical vibrations vibrations per second violet virtual image visual angle wave-front wave-length waves