Salusbury, Thomas
,
Mathematical collections and translations (Tome I)
,
1667
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aſſignes a reaſon of the continual motion of the Eaſtern Winde,
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and alſo of a like motion in the Water. </
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>In the ſecond, It would
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draw from the ſame Sourſe the cauſe of the Ebbing and Flowing.
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>The firſt part hath (as I have ſaid) ſome appearance of
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lity, but yet extreamly leſs then that which we take from the
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Terreſtrial motion. </
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>The ſecond is not onely wholly improbable,
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but altogether impoſſible and falſe. </
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>And coming to the firſt,
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whereas it is ſaid that the Concave of the Moon carrieth about
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the element of Fire, and the whole Air, even to the tops of the
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higher Mountains. </
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>I anſwer firſt, that it is dubious whether
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there be any element of Fire: But ſuppoſe there be, it is much
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doubted of the Orbe of the Moon, as alſo of all the reſt; that is,
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Whether there be any ſuch ſolid bodies and vaſt, or elſs, Whether
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beyond the Air there be extended a continuate expanſion of a
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ſubſtance of much more tenuity and purity than our Air, up and
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down which the Planets go wandring, as now at laſt a good part
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of thoſe very Phyloſophers begin to think: But be it in this or in
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that manner, there is no reaſon for which the Fire, by a ſimple
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contract to a ſuperficies, which you your ſelf grant to be ſmooth
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and terſe, ſhould be according to its whole depth carried round in
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a motion different from its natural inclination; as hath been
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fuſely proved, and with ſenſible reaſons demonſtrated by^{+}
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Il Sag-
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giatore
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: Beſides the other improbability of the ſaid motions
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transfuſing it ſelf from the ſubtileſt Fire throughout the Air, much
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more denſe; and from that alſo again to the Water. </
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>But that
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a body of rugged and mountainous ſurface, by revolving in it
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ſelf, ſhould carry with it the Air contiguous to it, and againſt
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which its promontaries beat, is not onely probable but neceſſary,
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and experience thereof may be daily ſeen; though without
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ing it, I believe that there is no judgement that doubts thereof.
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>As to the other part, ſuppoſing that the motion of Heaven did
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carry round the Air, and alſo the Water; yet would that motion
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for all that have nothing to do with the Ebbing and Flowing.
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<
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>For being that from one onely and uniform cauſe, there can
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low but one ſole and uniform effect; that which ſhould be
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vered in the Water, would be a continuate and uniform courſe
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from Eaſt to Weſt; and in that a Sea onely, which running
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paſs environeth the whole Globe. </
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<
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>But in determinate Seas, ſuch
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as is the Mediterrane ſhut up in the Eaſt, there could be no ſuch
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motion. </
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>For if its Water might be driven by the courſe of
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Heaven towards the Weſt, it would have been dry many ages
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ſince: Beſides that our Water runneth not onely towards the
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Weſt, But returneth backwards towards the Eaſt, and that in
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dinal Periods: And whereas you ſay by the example of Rivers,
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that though the courſe of the Sea were Originally that onely </
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