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"FRESNEL, AUGUSTIN. - OVERTHROWING THE CORPUSCULAR THEORY OF LIGHT.
Reference : 43910
(1816)
Mémoire Sur la Diffraction de la lumière, où l'on examine particulièrement le phénomène des franges colorées que présentent les ombres des corps éclairés par un point lumineux. (Memoir on the Diffraction of Light....)
(Paris, Crochard, 1816) No wrappers. In: 'Annales de Chimie et de Physique', Tome I, Sec. Series, Cahier Mars 1816. With htitle to vol. I. Pp. 225-336 and 1 folded engraved plate. (The entire issue offered). Fresnel's paper: pp. 239-281. The plate shows the diffraction patterns.
First appearance of Fresnel's landmark mémoir - this mémoir was his first paper on diffraction, and was later given the prize of the French Academy and published in Memoires de l'Academie in 1826 in full, together with his further developments of his light theory - in which he for the first time explained the causes of the diffraction effects as the mutual interference of the secondary waves emitted by those portions of the original wave-front which have not been obstructed by the diffraction screen. His methods of calculation utilized the principles of both Huygens and Young and he summed the effects due to different portions of the same primary wave-front. The memoir records also Fresnel's famous mirror-experiment.""In broad context Fresnel's work can be viewed as the first successfull assault on the theory of imponderables and a major influence on the development of nineteenth-centurty energetics."" (DSB V, p. 171).""Augustin Fresnel seems to have adopted a wave theory of light from the very beginning of his studies. His first paper, presented to the Academy...in October 1815, and entitled ""La Diffraction de la Lumiere"" (the paper offered), was written after a long correspondance with Arago, who had promised Fresnel his full support. ""The wave theory"" Fresnel wrote, ""is well suited to explaining the complicated propagation of light phenomena, and since, as we know from the case of sound, waves can surcomvent obstacles, I decided to make a study of shadows.....It is because they cross in regions common to them both that two pencils of rays can produce fringes. hence it follows that the vibrations of rays which cross at very small angles can cancel out whenever crests of one correspond to the throughs of the other.""
"FRESNEL, AUGUSTIN. - OVERTHROWING THE CORPUSCULAR THEORY OF LIGHT
Reference : 44120
(1816)
Mémoire sur la Diffraction de la lumiere, où l'on examine particulierement le phènomene des franges colorées que présentent les ombres des corps éclairés par un point lumineux. (Ce Mémoire a été déposé a l'Institut le 33 octobre 1815). (+) Mémoire...
Paris, Crochard, 1816, 1819. Bound in 2 contemp. hcloth. Gilt lettering to spines. In: ""Annales de Chimie et de Physique"" Series 2, Tome 1 a. Tome 11. Entire volumes offered.(4),452 pp. a. 3 engraved folded plates. + 448 pp. a. 3 folded engraved plates. Fresnel's papers: pp. 239-281 a. pp. 246-296 a. pp. 337-378. Arago's paper: pp. 5-30. Some scattered brownspots.
First appearance of Fresnel's landmark papers on the phenomena of diffraction, presenting Fresnel's first priinted paper on the subject. These two papers won the Academy's prize for 1818 and were later expanded and published as a long memoir in 1826. The first paper offered initiated the attack on the corpuscular theory of light, which was completely owerthrown by a series of succesfull papers by Fresnel the next few years. In the second paper Fresnel summed up all his work prior to this date in completed form. The paper is called ""extract"", but the longer memoir was not published until 1826. The paper is A CLASSIC IN PHYSICS.""In broad context Fresnel's work can be viewed as the first successfull assault on the theory of imponderables and a major influence on the development of nineteenth-centurty energetics."" (DSB V, p. 171).Diffraction arises because of the way in which waves propagate" this is described by the Huygens-Fresnel principle. The propagation of a wave can be visualized by considering every point on a wavefront as a point source for a secondary radial wave. The subsequent propagation and addition of all these radial waves form the new wavefront. When waves are added together, their sum is determined by the relative phases as well as the amplitudes of the individual waves, an effect which is often known as wave interference. The summed amplitude of the waves can have any value between zero and the sum of the individual amplitudes. Hence, diffraction patterns usually have a series of maxima and minima. (Wikipedia)-The volumes contains many other importent papers by Arago & Petit, Vaugelin, Humphrey Davy, d'Arcet, Laplace, Gay-Lussac, Alex. v. Humboldt, Thenard, Will. Prout, Stromeyer, Berzelius, Brewster, Theod. de Saussure, Ampère etc.
