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Excerpt: ...with the varying obliquity of the incident ray. 16. I found also that when QRE made a straight line, that is, when the incident ray entered the Crystal without being refracted (as I ascertained by the circumstance that then the point E viewed by the extraordinary refraction appeared in the line CD, as seen without refraction) I found, I say, then that the angle QRG was 73 degrees 20 minutes, as has been already remarked; and so it is not the ray parallel to the edge of the Crystal, which crosses it in a straight line without being refracted, as Mr. Bartholinus believed, since that inclination is only 70 degrees 57 minutes, as was stated above. And this is to be noted, in order that no one may search in vain for the cause of the singular property of this ray in its parallelism to the edges mentioned. 17. Finally, continuing my observations to discover the Pg 61 nature of this refraction, I learned that it obeyed the following remarkable rule. Let the parallelogram GCFH, made by the principal section of the Crystal, as previously determined, be traced separately. I found then that always, when the inclinations of two rays which come from opposite sides, as VK, SK here, are equal, their refractions KX and KT meet the bottom line HF in such wise that points X and T are equally distant from the point M, where the refraction of the perpendicular ray IK falls; and this occurs also for refractions in other sections of this Crystal. But before speaking of those, which have also other particular properties, we will investigate the causes of the phenomena which I have already reported. It was after having explained the refraction of ordinary transparent bodies by means of the spherical emanations of light, as above, that I resumed my examination of the nature of this Crystal, wherein I had previously been unable to discover anything. 18. As there were two different refractions, I conceived that there were also two different emanations of waves of light, and...
Treatise on Light PDF ePub
Treatise on Light by Christiaan Huygens - Free Ebook ~ Treatise on Light In which are explained the causes of that which occurs in reflexion, & in refraction and particularly in the strange refraction of Iceland crystal Language
Treatise on Light: : Christiaan Huygens ~ Treatise on Light / Christiaan Huygens / ISBN: 9781421944364 / Kostenloser Versand fĂŒr alle BĂŒcher mit Versand und Verkauf duch .
A Treatise on Light: : Robert Alexander Houstoun ~ A Treatise on Light / Robert Alexander Houstoun / ISBN: 9781340343736 / Kostenloser Versand fĂŒr alle BĂŒcher mit Versand und Verkauf duch .
Treatise on Light : Christiaan Huygens : Free Download ~ LibriVox recording of Treatise on Light, by Christiaan Huygens. Read by Availle. Treatise on Light was published in 1690 and is probably the largest scientific volume on light published before Newton's Opticks. The book explains how light travels (i.e., that it has a certain velocity), and what happens when it hits a surface (refraction and reflection). A large portion of the book is devoted .
Treatise On Light: : Huygens, Christiaan ~ Treatise On Light / Huygens, Christiaan / ISBN: / Kostenloser Versand fĂŒr alle BĂŒcher mit Versand und Verkauf duch .
Treatise on Light (Illustrated Edition): Huygens ~ Treatise of Light by Christian Huygens was published in 1690. The questions about the nature of light, how fast it travels, why it travels at all, and of course the phenomenon of reflection, refraction, birefringence are addressed using geometrical optics. These questions were quite current and poorly understood back then. While the book appears to be just a delightful exercise in geometry, it contains proofs and discussions relevant to ray optics that are used to the day. The .
Treatise on Light - Wikipedia ~ Treatise on Light (French: Traité de la LumiÚre) is a 1690 book written by the Dutch polymath Christiaan Huygens on his wave theory of light.Huygens' starting point was Descartes' theory, as presented in the Dioptrique, which Huygens aimed to supplant.Huygens' theory is also seen as the historical rival of Newton's theory, which was presented in the Opticks.
Opticks by Isaac Newton - Free Ebook ~ Free kindle book and epub digitized and proofread by Project Gutenberg.
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A Treatise on Physical Geography - Google Books ~ A Treatise on Physical Geography: Comprising Hydrology, Geognosy, Geology, Meteorology . DIVISION FOURTH METEOROLOGY OR DESCRIPTION OF THE ATMOSPHERE AND THE PHENOMENA DEPENDENT ON HEAT LIGHT A. 170: Composition of the Air . 171: Effects of Respiration and Combustion on Air . 173: Elasticity and Height of the Air . 174: Temperature of the Air . 175: Aqueous Meteors . 177: Clouds . 179 .
A Treatise on Electricity and Magnetism - Wikipedia ~ A Treatise on Electricity and Magnetism is a two-volume treatise on electromagnetism written by James Clerk Maxwell in 1873. Maxwell was revising the Treatise for a second edition when he died in 1879. The revision was completed by William Davidson Niven for publication in 1881. A third edition was prepared by J. J. Thomson for publication in 1892.
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A Book Forged in Hell: Spinoza's Scandalous Treatise and ~ The story of one of the most importantâand incendiaryâbooks in Western history When it appeared in 1670, Baruch Spinoza's Theological-Political Treatise was denounced as the most dangerous book ever publishedâ"godless," "full of abominations," "a book forged in hell . . . by the devil himself." Religious and secular authorities saw it as a threat to faith, social and political harmony .
LibriVox ~ Treatise on Light was published in 1690 and is probably the largest scientific volume on light published before Newton's Opticks. The book explains how light travels (i.e., that it has a certain velocity), and what happens when it hits a surface (refraction and reflection). A large portion of the book is devoted to the double refraction occurring in Iceland chrystal, and all drawn conclusions .
Opticks: : Or, A Treatise of the - Google Books ~ Try the new Google Books. Check out the new look and enjoy easier access to your favorite features. Try it now. No thanks. Try the new Google Books . eBook - FREE. Get this book in print. AbeBooks; On Demand Books; ; Find in a library; All sellers » Opticks:: Or, A Treatise of the Reflections, Refractions, Inflections and Colours of Light. Isaac Newton. William Innys at the West-End of .
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The Project Gutenberg eBook #32625: A treatise on probability ~ This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg Title: A Treatise of Probability Author: John Maynard Keynes Release Date: February 9, 2014 [EBook .
A REVISED ELECTROMAGNETIC THEORY WITH FUNDAMENTAL APPLICATIONS ~ §1.3 The contents of the present treatise...14 Chapter 2. Short Review of Some Modified Theories §2.1 Theories based on additional vacuum currents...15 2.1.1 Quantum mechanical theory of the electron...16 2.1.2 Theory of the photon with a rest mass...16 2.1.3 Nonzero electric ïŹeld divergence theory...17 2.1.4 Nonzero electric conductivity theory...17 2.1.5 Single charge theory .
Friedrich Accum â Wikipedia ~ Friedrich Christian Accum (* 29.MĂ€rz 1769 in BĂŒckeburg; â 28. Juni 1838 in Berlin) war ein deutscher Chemiker, dessen Hauptverdienste in der Förderung der Leuchtgaserzeugung, dem Kampf gegen LebensmittelverfĂ€lschungen und der Popularisierung der Chemie liegen.. Zwischen 1793 und 1821 lebte Accum in London, wo er ein eigenes Labor betrieb, Chemikalien und LaborgerĂ€te verkaufte .
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