And so, supposing that light impinging on a refracting or reflecting ethereal superficies puts it into a vibrating motion, that physical superficies … - Isaac Newton

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And so, supposing that light impinging on a refracting or reflecting ethereal superficies puts it into a vibrating motion, that physical superficies being by the perpetual applause of rays always kept in a vibrating motion, and the ether therein continually expanded and compressed by turns, if a ray of light impinge on it when it is much compressed, I suppose it is then too dense and stiff to let the ray through, and so reflects it; but the rays that impinge on it at other times, when it is either expanded by the interval between two vibrations or not too much compressed and condensed, go through and are refracted.

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About Isaac Newton

Sir Isaac Newton (January 4, 1643 – March 31, 1727 or in Old Style: December 25, 1642 – March 20, 1727) was an English mathematician, physicist, astronomer, alchemist, theologian, and author (described in his time as a "natural philosopher"), widely recognised as one of the greatest mathematicians and physicists and among the most influential scientists of all time. He was a key figure in the philosophical revolution known as the Enlightenment. His book Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), first published in 1687, established classical mechanics. Newton also made seminal contributions to optics, and shares credit with German mathematician Gottfried Wilhelm Leibniz for developing infinitesimal calculus.

Biography information from Wikiquote

Also Known As

Alternative Names: Sir Isaac Newton Isaacus Newtonus Isaacus Neutonus I. Newton I. Newtonius I. Neutonius Newton
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Additional quotes by Isaac Newton

And upon a wing of abominations he shall cause desolation, even until the consummation, and that which is determined be poured upon the desolate. The Prophets, in representing kingdoms by Beasts and Birds, put their wings stretched out over any country for their armies sent out to invade and rule over that country. Hence a wing of abominations is an army of false Gods: for an abomination is often put in scripture for a false God; as where Chemosh is called the abomination of Moab, and Molech the abomination of Ammon. The meaning therefore is, that the people of a Prince to come shall destroy the sanctuary, and abolish the daily worship of the true God, and overspread the land with an army of false gods; and by setting up their dominion and worship, cause desolation to the Jews, until the times of the Gentiles be fulfilled. For Christ tells us, that the abomination of desolation spoken of by Daniel was to be set up in the times of the Roman Empire, Matth. xxiv. 15.

Geometry was invented that we might expeditiously avoid, by drawing Lines, the Tediousness of Computation. Therefore these two Sciences ought not to be confounded. The Antients did so industriously distinguish them from one another, that they never introduc'd Arithmetical Terms into Geometry. And the Moderns, by confounding both, have lost the Simplicity in which all the Elegancy of Geometry consists. Wherefore that is Arithmetically more simple which is determin'd by the more simple Æquations, but that is Geometrically more simple which is determin'd by the more simple drawing of Lines; and in Geometry, that ought to be reckon'd best which is Geometrically most simple. Wherefore, I ought not to be blamed, if with that Prince of Mathematicians, Archimedes and other Antients, I make use of the Conchoid for the Construction of solid Problems.

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