Descartes, René
,
Renati Des-Cartes principia philosophiae
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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. </
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>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. </
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cur Cometarum caudae aliquando rectae,
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curvae appareant. </
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LXXXIV.
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Cur Solis proximi ce
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leriùs etiam feran-</
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tur, quàm paulòre
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motiores. </
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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. </
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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. </
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<
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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 </
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