Descartes, René
,
Renati Des-Cartes principia philosophiae
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in eo ſitu, in quo nunc eſſe ſupponitur, poteſt con
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ſervare, quàm magna vis materiae primi elementi, in
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ejus centro exiſtentis, quae globulos ſecundi circum
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quaque ita propellit, ut ejus impulſui potiùs quàm
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motibus vicinorum vorticum obſequantur: quae
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interventu macularum debilitatur & frangitur. </
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CXVI.
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Quomodo deſtrui poſſit,
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antequam multae ma
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culae circa ejus ſtel
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lam ſint congregatae. </
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Vortex autem C inter quatuor S, ſ, G, H, duoſque
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alios M & N, qui ſupra iſtos quatuor intelligendi ſunt,
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ita eſt conſtitutus, ut quamvis
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denſae maculae circa ejus
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congregentur, nunquam tamen
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totus poſſit everti, quandiu iſti
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ſex ſunt viribus interſe aequales. </
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Quippe ſuppono vortices S, F,
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&stertium M,
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incumben
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tem ſupra punctum D, circa pro
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pria centra gyrare à D verſus C:
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itemque tres alios G, H, & ſextum N, ſupra ipſos po
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ſitum, verti ab E verſus C; vorticem autem C ita
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inter hos ſex eſſe conſtitutum, ut ipſos ſolos tangat,
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&sejus centrum ab eorum ſex centris aequidiſtet, axiſ
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que, circa quem gyratur, ſit in lineâ DE. </
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iſtorum ſeptem vorticum motus inter ſe optimè con
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veniunt; & quantumvis multis maculis ſidus vorticis C
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obruatur, adeò ut perexiguas, vel etiam planè
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habeat vires ad globulos coeli circa ſe poſitos ſecum
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in orbem rapiendos, non tamen ulla eſt ratio, cur alii
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ſex illud è loco ſuo expellant, quamdiu inter ſe ſunt
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aequales. </
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CXVII.
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Quomodo permultae
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maculae, circa ali
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quam ſtellam eſſe
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poſſint, antequam
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ejus vortex de deſtrua
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tur. </
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Sed ut ſciamus quo pacto tam multae maculae
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illud generari potuerint, putemus ipſum initio non </
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