Descartes, René, Renati Des-Cartes principia philosophiae

Table of figures

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              tus, qui ſunt inter globulos ſecundi elementi, verſus
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              eclipticam emittat & verſus polos recipiat, quin ha­
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              beat vim ſecum rapiendi globulos iſtos uſque ad certam
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              diſtantiam. </s>
              <s>Hujuſque diſtantiae terminum deſigna­
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              mus ellipſi HNQR, non circulo: quamvis enim Sol
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              ſphaericus, ac non minori vi pellat materiam coeli cir­
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              cumjacentem verſus polos quàm verſus eclipticam,
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              illâ actione in quâ ejus lucem conſiſtere diximus a, non
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              poteſt tamen idem intelligi de hac alterâ actione, quâ
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              iſtam coeli materiam ſecum in orbeni rapit,
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              pen­
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              det à ſolo ejus motu circulari circa ſuum axem; qui
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              motus procul dubio potentior eſt in eclipticâ, quàm
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              verſus polos; & ideò hîc H & Q magis diſtare debent
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              ab S, quàm N & R. </s>
              <s>Atque hinc infra b ratio reddetur,
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              cur Cometarum caudae aliquando rectae,
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              curvae appareant. </s>
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              LXXXIV.
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              Cur Solis proximi ce­
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              leriùs etiam feran-</s>
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              tur, quàm paulòre­
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              motiores. </s>
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              5</s>
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              10</s>
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              15</s>
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              Cùm autem hîc, intra terminum H Q, inferiores
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              globuli materiae coeleſtis celeriùs moveantur quàm
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              ſuperiores, debent etiam eſſe minores; ſi enim eſſent
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              majores vel aequales, hoc ipſo haberent plus virium,
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              ideoque ſuperiores evaderent. </s>
              <s>Sed ubi ſemel contin­
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              git, aliquem tantà eſſe minorem iis qui ſupra ipſum
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              ſunt, ut magis ab iis magnitudine ſuperetur, quàm illos
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              celeritate ſuperet, ſemper poſtea illis inferior manere
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              debet. </s>
              <s>Etſi verò globulos iſtos in principio
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              accu­
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              ratiſſimè aequales à Deo factos fuiſſe ſupponamus c, fieri
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              tamen non potuit, lapſu temporis, ob inaequalitatem
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              atiorum quae percurrun, & inaequalitatem eorum </s>
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