Elementary Treatise on Natural Philosophy, Volumen4D. Appleton, 1891 |
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Página 861
... axis , 1005. March of conjugate foci , 1006. Construction for image , 1007. Size of image , 1008. Example , 1009. Image on cross - wires , 1010. Aberra- tion of lenses , 1011. Virtual images , 1012. Concave lens , 1013. Focometer , 1014 ...
... axis , 1005. March of conjugate foci , 1006. Construction for image , 1007. Size of image , 1008. Example , 1009. Image on cross - wires , 1010. Aberra- tion of lenses , 1011. Virtual images , 1012. Concave lens , 1013. Focometer , 1014 ...
Página 862
... axis shows rings and cross , 1109. Explanation , 1110. , Crystals are isotropic , uniaxal , or biaxal , 1111. Rota- tion of plane of polarization . Quartz and sugar . Production of colour , 1112 . Magneto - optic rotation . Kerr's ...
... axis shows rings and cross , 1109. Explanation , 1110. , Crystals are isotropic , uniaxal , or biaxal , 1111. Rota- tion of plane of polarization . Quartz and sugar . Production of colour , 1112 . Magneto - optic rotation . Kerr's ...
Página 869
... axis , it will be seen that the flame is alternately rising and falling , Fig . 597. - Chemical Harmonica . its successive images , as drawn out into a horizontal series by the rotation of the mirror , resembling a number of equidistant ...
... axis , it will be seen that the flame is alternately rising and falling , Fig . 597. - Chemical Harmonica . its successive images , as drawn out into a horizontal series by the rotation of the mirror , resembling a number of equidistant ...
Página 872
... axis . One end is pressed against the chest of the patient , while the observer applies his ear to the other . He is thus enabled to hear the sounds produced by various internal actions , such as the beating of the heart and the passage ...
... axis . One end is pressed against the chest of the patient , while the observer applies his ear to the other . He is thus enabled to hear the sounds produced by various internal actions , such as the beating of the heart and the passage ...
Página 889
... axis ; but this explana- tion fails to account for the utility of the bell , which experience has shown to be considerable . It appears from a theoretical investigation by Lord Rayleigh that the speaking - trumpet causes a greater total ...
... axis ; but this explana- tion fails to account for the utility of the bell , which experience has shown to be considerable . It appears from a theoretical investigation by Lord Rayleigh that the speaking - trumpet causes a greater total ...
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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