Duff, A. Wilmer (Alexander Wilmer), b. 1864, ed, Guthe, Karl Eugen, 1866-1915, Hallock, William, 1857-1913, Lewis, E. Percival (Exum Percival), 1863-1925, Goodspeed, Arthur W. (Arthur Willis), b. 1860, Carman, Albert Pruden, b. 1861, McClung, Robert Kenning, 1874- · Philadelphia, P. Blakiston's Son & Co · leaf 418
case the vibrations INTERFERENCE. 401 must have been parallel to the film, and therefore to the mirror,in order that the incident and reflected rays should be in a con-dition to interfere at P, whilein the second case the vibra-tions must have been in theplane of incidence on thefilm, and therefore… … Fig. 279. 464. Lippmanns Color Photography. This method is dependent onthe formation of nodal reflecting planes in a film by Wieners process. Atransparent sensitive film several wave-lengths thick is floated on mercury,and a colored image, say a spectrum, is thrown normally upon it Sta-tionary…
Physics
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