The system of the world; demonstrated in an easy and popular manner. Being a proper introduction to the most sublime philosophy. By the illustrious Sir Isaac Newton. Translated into English - Softcover

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1740 edition. Excerpt: ...though the actions of the luminaries fhould ceafe. This power of retaining the imprefled-motion leflens the difference of the alternate tides, and makes thofe tides which Immediately fucceed after the fyzygies greater, and thofe which follow next after the quadratures lefs. And hence it is that the alternate tides at Plymouth and Briftol, do not differ much more one from the other, than by the height of a foot, or of 15 inches inches, and that the greateft tides of all at thofe ports are not the firft but the third after the fyzygies. Andbefides, all the motions are retarded in their paffage through ftiallow channels, fo that the greateft tides of all in fome ftreights and mouths of rivers, are the fourth, or even die fifth after the fyzygies. 3 I T may alfo happen that the greateft tide may be the fourth or fifth That the mot;ons after the fyzygies, or fall out yet of the fea may be later, becaufe the motions of retard!d.by TMPef r,;,... ff ments m its channels. the Sea are retarded in pafling through fhallow places towards the (hores. For fo the tide arrives at the jveftern coaft of Ireland at the third lunar hour, and an'hour or two after, at the ports in the foudiern coaft of the fame ifland, as alfo at the iflands CaJJiterides commonly Sor lings; then fuccefllvely ztFalmouth, 'Plymouth, Portland, the ifle of Wight, Winchejter, 'Dover, the mouth of the Thames, and Londoneridge, fpending twelve hours in this pafiage. But furdier the propagation of the tides may be obftruded even by the channels of the ocean itfelf, when they are not of depth enough; for the flood happens at the third lunar, hour in the Canary Iflands, and at all thofe weftern coafts that lie F 3 totowards the Atlantic ocean, as of Ire land, France, Spain, and all Africa to the...

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