Salusbury, Thomas
,
Mathematical collections and translations (Tome I)
,
1667
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be equal, the alterations of the annual Period would fail.</
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Three wayes of
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altering the
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portion of the
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ditions of the
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nal Revolution to
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the annual motion.
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That which
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us is hard to be
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derſtood, is with
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Nature eaſie to be
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effected.
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If the Diurnal
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motion ſhould not
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alter, the annual
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Period would ceaſe
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>SAGR. </
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>It ſeems then, that the Monethly alteration of
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bings and flowings dependeth on the alteration of the annual
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motion of the Earth? </
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>And the annual alteration of thoſe
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bings and flowings do, it ſeems, depend on the additions and
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ſubſtractions of the diurnal converſion? </
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<
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>And here now I finde
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my ſelf worſe puzzled than before, and more out of hope of
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being able to comprehend how this intricacy may be, which is
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more inextricable, in my judgment, than the Gordian knot. </
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<
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>And
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I envy
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Simplicius,
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from whoſe ſilence I argue that he doth
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prehend the whole buſineſſe, and is acquit of that confuſion
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which greatly puzzleth my brains.</
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>SIMP. </
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>I believe verily,
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Sagredus,
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that you are put to a
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a ſtand; and I believe that I know alſo the cauſe of your
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fuſion, which, if I miſtake not, riſeth from your underſtanding
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part of thoſe particulars but even now alledged by
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Salviatus,
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and but a part. </
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>It is true likewiſe that I find my ſelf free from the
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like confuſion; but not for that cauſe as you think, to wit,
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cauſe I apprehend the whole, nay it happens upon the quite
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contrary account; namely, from my not comprehending any
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thing; and confuſion is in the plurality of things, and not in
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nothing.</
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>SAGR. </
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<
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>You ſee
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Salviatus,
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how a few checks given to
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cius
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in the dayes preceding, have rendered him gentle, and
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brought him from the
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capriol
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to the
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amble.
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But I beſeech you
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without farther delay, put us both out of ſuſpence.</
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>SALV. </
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>I will endeavour it to the utmoſt of my harſh way of
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expreſſing my ſelf, the obtuſeneſſe of which, the acuteneſſe of
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your wit ſhall ſupply. </
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<
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>The accidents of which we are to enquire
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the cauſes are two: The firſt reſpecteth the varieties that happen
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in the ebbings and flowings in the Monethly Period; and the
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thr relateth to the Annual. </
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<
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>We will firſt ſpeak of the
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ly, and then treat of the Annual; and it is convenient that we
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reſolve them all according to the Fundamentals and Hypotheſis
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already laid down, without introducing any novelty either in
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ſtronomy, or in the Univerſe, in favour of the ebbings and
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ings; therefore let us demonſtrate that of all the ſeveral
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dents in them obſerved, the cauſes reſide in the things already
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known, and received for true and undoubted. </
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<
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>I ſay therefore,
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that it is a truly natural, yea neceſſary thing, that one and the ſame
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moveable made to move round by the ſame moving virtue in a
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longer time, do make its courſe by a greater circle, rather than
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by a leſſer; and this is a truth received by all, and
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firmed by all experiments, of which we will produce a few.
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In the wheel-clocks, and particularly in the great ones, to </
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