The Nature of Light: With a General Account of Physical OpticsD. Appleton, 1876 - 356 pagini |
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Pagina 27
... vertical line , or perpendicular ( n p ) , to fall on the reflecting sur- face at the point n ( fig . 14 ) where it is struck by the incident ray . The plane drawn through the incident ray and the perpendicular , which is itself vertical ...
... vertical line , or perpendicular ( n p ) , to fall on the reflecting sur- face at the point n ( fig . 14 ) where it is struck by the incident ray . The plane drawn through the incident ray and the perpendicular , which is itself vertical ...
Pagina 28
... vertical slit at the centre of its curve ( a ) , and from this point outward is divided into 90 ° . The mirror f , the back of which is shown in the figure , is capable of being rotated round a vertical axis , FIG . 15 . Model for the ...
... vertical slit at the centre of its curve ( a ) , and from this point outward is divided into 90 ° . The mirror f , the back of which is shown in the figure , is capable of being rotated round a vertical axis , FIG . 15 . Model for the ...
Pagina 34
... vertical . A small beam of the parallel rays of the sun , directed into the chamber through a vertical slit by means of a Heliostat , is reflected from the anterior surface and forms a bright vertical line upon a screen , S , placed at ...
... vertical . A small beam of the parallel rays of the sun , directed into the chamber through a vertical slit by means of a Heliostat , is reflected from the anterior surface and forms a bright vertical line upon a screen , S , placed at ...
Pagina 58
... vertical transparent slit . The internal surface of the semicircular wall is divided into 90 ° towards each side , commencing from a point exactly opposite. Apparatus for demonstrating the law of refraction . 58 OPTICS .
... vertical transparent slit . The internal surface of the semicircular wall is divided into 90 ° towards each side , commencing from a point exactly opposite. Apparatus for demonstrating the law of refraction . 58 OPTICS .
Pagina 82
... Vertical image . making the strongly divergent rays parallel or con- vergent , but simply diminishes their divergence . An actual union of the refracted rays can now no longer take place , but if prolonged backwards , they pass through ...
... Vertical image . making the strongly divergent rays parallel or con- vergent , but simply diminishes their divergence . An actual union of the refracted rays can now no longer take place , but if prolonged backwards , they pass through ...
Alte ediții - Afișează-le pe toate
The Nature of Light: With a General Account of Physical Optics Eugene Lommel Vizualizare completă - 1876 |
The Nature of Light: With a General Account of Physical Optics Eugene Lommel Vizualizare completă - 1876 |
The Nature of Light: With a General Account of Physical Optics Eugene Lommel Vizualizare completă - 1884 |
Termeni și expresii frecvente
absorption æther amount angle of incidence angle of refraction aperture appears beam blue body bright lines carbon points centre circle conjugate points consequently convex convex lens corresponding crown glass crystal dark lines difference of path diffraction direction double refraction electric elementary waves equal example exhibit fasciculus flame flint glass fluid fluorescence focal distance green half wave-length Heliostat homogeneous Iceland spar illuminated incident rays index of refraction lens lenses luminous point marginal rays medium metal movement Nicol's prism object observed obtained optic axis parallel particles pass perpendicular phenomena placed plane of vibration polariscope polarised ray position principal plane prism Prof propagated Quartz ray of light real image reflected reflexion refracted ray refracting angle refrangible regarded right angles rotated screen seen slit Sodium solar spectrum source of light spectra spectroscope surface telescope thickness tion traverse tube undergoes undulatory vapour velocity vertical violet whilst yellow
Pasaje populare
Pagina 345 - Prof. MICHAEL FOSTER, MD Protoplasm and the Cell Theory. H. CHARLTON BASTIAN, MD, FRS The Brain as an Organ of Mind. Prof. AC RAMSAY, LL.D., FRS Earth Sculpture : Hills, Valleys, Mountains, Plains, Rivers, Lakes ; how they were Produced, and how they have been Destroyed.
Pagina 345 - FRS The Old Chemistry viewed from the New Stand-point. W. LAUDER LINDSAY, MD, FRSE Mind in the Lower Animals. Sir JOHN LUBBOCK, Bart, FRS On Ants and Bees. Prof. WT THISELTON DYER, BA, B.
Pagina 349 - This admirable monograph, by the distinguished Erving Professor of Chemistry in Harvard University, is the first American contribution to 'The International Scientific Series,' and a more attractive piece of work in the way of popular exposition upon a difficult subject has not appeared in a long time. It not only well sustains the character of the volumes with which it is associated, but its reproduction in European countries will be an honor to American science.
Pagina 347 - ... Law/ have we seen so many fruitful thoughts suggested in the course of a couple of hundred pages. ... To do justice to Mr. Bagehot's fertile book, would require a long article. With the best of intentions, we are conscious of having given but a sorry account of it in these brief paragraphs. But we hope we have said enough to commend it to the attention of the thoughtful leader."-
Pagina 348 - While, in the strongest manner, asserting the union of mind with brain, he yet denies ' the association of union in place ,* but asserts the union of close succession in time,' holding that ' the same being is, by alternate fits, under extended and under unextended consciousness.
Pagina 347 - ... proceeds as it has begun, it will more than fulfil the promise given to the reading public in its prospectus. The first volume, by Professor Tyndall, was a model of lucid and attractive scientific- exposition ; and now we have a second, by Mr. Walter Bagehot, which is not only very lucid and charming, but also original and suggestive in the highest degree. Nowhere since the publication of Sir Henry Maine's 'Ancient Law/ have we seen so many fruitful thoughts suggested in the course of a couple...