Newton, Isaac, Philosophia naturalis principia mathematica, 1713

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                  motibus revolvebantur, permittatur Syſtema totum Legibus Me­
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                  chanicis; vas & globus in ſe invicem agent mediante fluido, ne­
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                  que motus ſuos in ſe mutuo per fluidum propagare prius ceſſa­
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                  bunt, quam eorum tempora periodica æquentur inter ſe, & Syſte­
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                  ma totum ad inſtar corporis unius ſolidi ſimul revolvatur. </s>
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                  DE MOTU
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                  CORPORUM</s>
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                  <s>
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                  Scholium.
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                    <emph.end type="center"/>
                  </s>
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                  <s>In his omnibus ſuppono fluidum ex materia quoad denſitatem
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                  & fluiditatem uniformi conſtare. </s>
                  <s>Tale eſt in quo globus idem
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                  codem cum motu, in eodem temporis intervallo, motus ſimiles &
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                  æquales, ad æquales ſemper à ſe diſtantias, ubivis in fluido conſti­
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                  tutus, propagare poſſit. </s>
                  <s>Conatur quidem materia per motum
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                  ſuum circularem recedere ab axe Vorticis, & propterea premit
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                  materiam omnem ulteriorem. </s>
                  <s>Ex hac preſſione fit attritus par­
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                  tium fortior & ſeparatio ab invicem difficilior; & per conſequens
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                  diminuitur materiæ fluiditas. </s>
                  <s>Rurſus ſi partes fluidi ſunt alicubi
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                  craſſiores ſeu majores, fluiditas ibi minor erit, ob pauciores ſuper­
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                  ficies in quibus partes ſeparentur ab invicem. </s>
                  <s>In hujuſmodi caſi­
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                  bus deficientem fluiditatem vel lubricitate partium vel lentore alia­
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                  ve aliqua conditione reſtitui ſuppono. </s>
                  <s>Hoc niſi fiat, materia ubi
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                  minus fluida eſt magis cohærebit & ſegnior erit, adeoque motum
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                  tardius recipiet & longius propagabit quam pro ratione ſuperius
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                  aſſignata. </s>
                  <s>Si figura vaſis non ſit Sphærica, movebuntur particulæ
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                  in lineis non circularibus ſed conformibus eidem vaſis figuræ, &
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                  tempora periodica erunt ut quadrata mediocrium diſtantiarum à
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                  centro quamproxime. </s>
                  <s>In partibus inter centrum & circumferen­
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                  tiam, ubi latiora ſunt ſpatia, tardiores erunt motus, ubi anguſtiora
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                  velociores, neque tamen particulæ velociores petent circumferen­
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                  tiam. </s>
                  <s>Arcus enim deſcribent minus curvos, & conatus recedendi
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                  à centro non minus diminuetur per decrementum hujus curva­
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                  turæ, quam augebitur per incrementum velocitatis. </s>
                  <s>Pergendo a
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                  ſpatiis anguſtioribus in latiora recedent paulo longius a centro,
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                  ſed iſto receſſu tardeſcent; & accedendo poſtea de latioribus ad
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                  anguſtiora accelerabuntur, & ſic per vices tardeſcent & accelera­
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                  buntur particulæ ſingulæ in perpetuum. </s>
                  <s>Hæc ita ſe habebunt in
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                  vaſe rigido. </s>
                  <s>Nam in fluido infinito conſtitutio Vorticum innote­
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                  ſcit per Propoſitionis hujus Corollarium ſextum. </s>
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                  <s>Proprietates autem Vorticum hac Propoſitione inveſtigare co­
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                  natus ſum, ut pertentarem ſiqua ratione Phænomena cœleſtia per </s>
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