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" ... as the angle of reflection is always equal to the angle of incidence, the image for any point can be seen only in the reflected ray prolonged. "
Scientific Dialogues: Intended for the Instruction and Entertainment of ... - Page 107
by Jeremiah Joyce - 1809
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The great art of artillery, tr. from the Fr. by G. Shelvocke

Kazimierz Siemienowicz - 1729
...according to the Nature of the Rays of all Luminous Bodies, with whom (as we are taught by Optics) the Angle of Reflection is always equal to the Angle of Incidence. Wherefore all the Rays in general being confined and refifted by the Body they would project, and having...
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Miscellanea Curiosa Mathematica: Or, The Literary Correspondence ..., Volume 1

Francis Holliday - 1749 - 316 pages
...the fides of the figure b, myn,p'y and A, 2, 3, 4, A, will be the path of the moving body A, becaufe the angle of reflection is always equal to the angle of incidence, and the center of the ball, perpendicular to the point of contract ; hence by drawing 2 F, 3 G and...
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Lectures on Natural and Experimental Philosophy: Considered in It ..., Volume 2

George Adams - 1794
...that is, either perpendicularly or obliquely; and experience has proved, that when light is reflected, the angle of reflection is always equal to the angle of incidence. Thus, fuppofe ab, jig. 25, pi. i, to be the furface of a plane mirror, If a ray of light fc falls perpendicularly...
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Letters of Euler on Different Subjects in Natural Philosophy: Addressed to a ...

Leonhard Euler - 1802
...equal to B' MP, and the angle A mw, equal to the angle B m P. Toil This property is thus enounced : The angle of reflection is always equal to the angle of incidence. I have already taken notice of this ftriking property ; but my defign, at prefent, is to fhew what the...
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System of Theoretical and Practical Chemistry ...

Friedrich Christian Accum - 1808
...without coming into contact with the matter which repels it. The ray is then said to be reflected. The angle of reflection is always equal to the angle of incidence. EXPERIMENT II. To prove that the angle of refection is equal to the angle of incidence. There are several...
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A General View of the Natural History of the Atmosphere: And of ..., Volume 1

Henry Robertson (M.D.) - 1808
...through a stratum more rare. The rays of light are likewise capable of being reflected from bodies; and the angle of reflection is always equal to the angle of incidence. A ray is said to be perfectly reflected, when the whole of it is again thrown out, either as it struck...
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The British encyclopedia, or, Dictionary of arts and sciences, Volume 4

William Nicholson - 1809
...anil called looking-glasses. The doctrine of mirrours depends wholly on that fundamental law, that the angle of reflection is always equal to the angle of incidence. See OPTICS. Parallel rays falling directly on a planę speculum are reflected back upon themselves;...
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The Modern Preceptor Or a General Course of Education: Containing ..., Volume 2

John Dougall - 1810 - 580 pages
...angle, equal to that formed with the same body, by the original impinging ray ; or, in other words, the angle, of reflection is always equal to the angle of incidence. Thus, if the original ray fall perpendicularly on the reflecting body, the reflected ray will return...
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Elements of Chemistry ...

Thomas Thomson - 1810 - 351 pages
...elastic ball were made to strike obliquely ajcainst the ground. The ray is then said to be reflected. The angle of reflection is always equal to the angle of incidence. When a ray of light passes within a certain distance of another body, it is bent to-iciirda it ; at...
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Pantologia. A new (cabinet) cyclopædia, by J.M. Good, O. Gregory ..., Volume 8

John Mason Good - 1819
...and called, looking-gUstes. The doctrine of mirroiirs depends wholly on that fundamental law, that the angle of reflection is always equal to the angle of incidence. See OPTICS. Parallel rays falling directly on a plane speculum arc reflected back upon themselves ;...
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