Descartes, René, Renati Des-Cartes principia philosophiae

Table of figures

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              ſecundùm quos materia coeleſtis circa centrum S
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              gyrat; & poſtquam eò pervenit, ita curſum ſuum ulte­
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              riùs perſequitur, ut ſemper magis ac magis recedat à
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              centro S, donec ex vortice A E I O in alium migret. </s>
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              Ut ſi moveatur initio ſecundùm lineam NC,
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              pervenit ad C, ubi haec linea curva N C tangit circu­
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              lum, qui ibi deſcribitur à globulis ſecundi elementi
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              circa centrum S: non poteſt non ſtatim recedere ab S
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              per lineam curvam C2, ſitam inter hunc-circulum, &
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              rectam eum in puncto C tangentem. </s>
              <s>Cùm
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              dela­
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              tum ſit ad C, à materiâ ſecundi elementi magis re­
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              motâ ab S quàm ea quae eſt in C, ac proinde celeriùs
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              acta, ſitque ipſâ ſolidius, ut ſupponimus: non poteſt
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              non habere majorem vim ad perſeverandum in ſuo
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              motu ſecundùm lineam rectam tangentem
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              cir­
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              culum; ſed ſtatim atque receſſit à puncto C, occurrit
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              materiae ſecundi elementi celeriùs motae, quae illum
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              nonnihil avertit à lineâ rectâ, ſimulque augendo ejus
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              celeritatem efficit ut ulteriùs aſcendat ſecundùm lineam
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              curvam C 2, quae eò minus diſtat à rectâ tangente,
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              hoc ſidus ſolidus eſt, & quò majori cum celeritate de­
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              latum eſt ab N ad C. </s>
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              CXXVI.
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              De principio motûs
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              Cometae. </s>
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              25</s>
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              30</s>
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              5</s>
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              5</s>
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              10</s>
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              15</s>
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              20</s>
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            <figure id="fig46" number="47"/>
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              Cùm autem per hunc vorticem AEIO hac ratione
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              progreditur, tantam vim agitationis acquirit, ut facilè
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              inde in alios vortices migret, atque ex his in alios.
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              Notandumque eſt, cùm pervenit ad 2, egrediturque
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              limites vorticis in quo eſt, ipſum adhuc aliquandiu
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              retinere ejus materiam circa ſe fluentem, nec planè ab
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              eâ liberari, donec ſatis altè in alium vorticem AEV
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              penetrârit: nempe donec pervenerit ad 3. </s>
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              modo ducit ſecum materiam hujus ſecundi vorticis </s>
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