Newton, Isaac, Philosophia naturalis principia mathematica, 1713

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                  <s>
                    <emph type="italics"/>
                  Corol.
                    <emph.end type="italics"/>
                  1. Cum Aqua vi Solis agitata aſcendat ad altitudinem
                    <lb/>
                    <arrow.to.target n="note458"/>
                  pedis unius & undecim digitorum cum octava parte digiti, eadem
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                  vi Lunæ aſcendet ad altitudinem octo pedum & digitorum octo,
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                  & vi utraque ad altitudinem pedum decem cum ſemiſſe, & ubi
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                  Luna eſt in Perigæo ad altitudinem pedum duodecim cum ſemiſſe
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                  & ultra, præſertim ubi Æſtus ventis ſpirantibus adjuvatur. </s>
                  <s>Tanta
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                  autem vis ad omnes Maris motus excitandos abunde ſufficit, &
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                  quantitati motuum probe reſpondet. </s>
                  <s>Nam in maribus quæ ab
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                  Oriente in Occidentem late patent, uti in Mari
                    <emph type="italics"/>
                  Pacifico,
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                  & Maris
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                    <emph type="italics"/>
                  Atlantici
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                  &
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                  Æthiopici
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                  partibus extra Tropicos, aqua attolli ſo­
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                  let ad altitudinem pedum ſex, novem, duodecim vel quindecim. </s>
                  <s>
                    <lb/>
                  In Mari autem
                    <emph type="italics"/>
                  Pacifico,
                    <emph.end type="italics"/>
                  quod profundius eſt & latius patet, Æſtus
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                  dicuntur eſſe majores quam in
                    <emph type="italics"/>
                  Atlantico
                    <emph.end type="italics"/>
                  &
                    <emph type="italics"/>
                  Æthiopico.
                    <emph.end type="italics"/>
                  Etenim
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                  ut plenus ſit Æſtus, latitudo Maris ab Oriente in Occidentem non
                    <lb/>
                  minor eſſe debet quàm graduum nonaginta. </s>
                  <s>In Mari
                    <emph type="italics"/>
                  Æthiopico,
                    <emph.end type="italics"/>
                    <lb/>
                  aſcenſus aquæ intra Tropicos minor eſt quam in Zonis tempera­
                    <lb/>
                  tis, propter anguſtiam Maris inter
                    <emph type="italics"/>
                  Africam
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                  & Auſtralem partem
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                    <emph type="italics"/>
                  Americæ.
                    <emph.end type="italics"/>
                  In medio Mari aqua nequit aſcendere, niſi ad littus
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                  utrumque & orientale & occidentale ſimul deſcendat: cum tamen
                    <lb/>
                  vicibus alternis ad littora illa in Maribus noſtris anguſtis deſcen­
                    <lb/>
                  dere debeat. </s>
                  <s>Ea de cauſa fluxus & refluxus in Inſulis, quæ à
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                  littoribus longiſſime abſunt, perexiguus eſſet ſolet. </s>
                  <s>In Portubus
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                  quibuſdam, ubi aqua cum impetu magno per loca vadoſa, ad
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                  Sinus alternis vicibus implendos & evacuandos, influere & effluere
                    <lb/>
                  cogitur, fluxus & refluxus debent eſſe ſolito majores, uti ad
                    <lb/>
                    <emph type="italics"/>
                  Plymuthum
                    <emph.end type="italics"/>
                  & pontem
                    <emph type="italics"/>
                  Chepſtowæ
                    <emph.end type="italics"/>
                  in
                    <emph type="italics"/>
                  Anglia
                    <emph.end type="italics"/>
                  ; ad montes S.
                    <emph type="italics"/>
                  Mi­
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                  chaelis
                    <emph.end type="italics"/>
                  & urbem
                    <emph type="italics"/>
                  Abrincatuorum
                    <emph.end type="italics"/>
                  (vulgo
                    <emph type="italics"/>
                  Auranches
                    <emph.end type="italics"/>
                  ) in
                    <emph type="italics"/>
                  Normania
                    <emph.end type="italics"/>
                  ;
                    <lb/>
                  ad
                    <emph type="italics"/>
                  Cambaiam
                    <emph.end type="italics"/>
                  &
                    <emph type="italics"/>
                  Pegu
                    <emph.end type="italics"/>
                  in
                    <emph type="italics"/>
                  India
                    <emph.end type="italics"/>
                  orientali. </s>
                  <s>His in locis mare,
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                  magna cum velocitate accedendo & recedendo, littora nunc in­
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                  undat nunc arida relinquit ad multa milliaria. </s>
                  <s>NeQ.E.I.petus
                    <lb/>
                  influendi & remeandi prius frangi poteſt, quam aqua attollitur
                    <lb/>
                  vel deprimitur ad pedes 30, 40, vel 50 & amplius. </s>
                  <s>Et par eſt
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                  ratio fretorum oblongorum & vadoſorum, uti
                    <emph type="italics"/>
                  Magellanici
                    <emph.end type="italics"/>
                  & ejus
                    <lb/>
                  quo
                    <emph type="italics"/>
                  Anglia
                    <emph.end type="italics"/>
                  circundatur. </s>
                  <s>Æſtus in hujuſmodi portubus & fretis,
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                  per impetum curſus & recurſus ſupra modum augetur. </s>
                  <s>Ad littora
                    <lb/>
                  vero quæ deſcenſu præcipiti ad mare profundum & apertum
                    <lb/>
                  ſpectant, ubi aqua ſine impetu effluendi & remeandi attolli &
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                  ſubſidere poteſt, magnitudo Æſtus reſpondet viribus Solis &
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                  Lunæ. </s>
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