Light: A Course of Experimental Optics, Chiefly with the Lantern |
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absorption adjusted analyser aperture apparatus appear arranged axes axis bands beam beautiful bi-axial black card blue calcite centre circular colour common light complementary colours concave convergent crossed crystal dark diffracted direction disc dispersion distance double refraction effects elasticity ether experiment film fluorescence focus focusing Fresnel's give glass green heat inches diameter index of refraction interference John Herschel lantern law of sines lens lenses lime-light lines mica mirror molecules motion mounted nearly Newton's Newton's rings Nicol NICOL PRISM nozzle object optic axis optical stage ordinary parallel particles pass perpendicular phenomena plane-polarised polariscope polarised light position prism produced quarter-wave plate quartz rays retardation right angles rings rotated screen seen selenite shown slide slide-stage slit solution spar spectra spectrum square surface theory thickness thin total reflection tourmaline tube uni-axial velocity vibrations violet wave-length waves white light yellow