Descartes, René
,
Renati Des-Cartes principia philosophiae
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elementi circumjacentes, aequaliter undequaque re
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pellere; non minùs illos in quos obliqu tantùm
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reflectitur, quàm illos in quos directè impingit. </
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Notandum deinde materiam iſtam primi elementi,
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quamdiu verſatur inter globulos ſecundi, habere qui
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dem motum rectum, à polis AB ad Solem, & à Sole
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ad eclipticam YM, ac circularem circa polos toti coelo
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AMBY communem; ſed prieterea etiam, maximam &
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praecipuam partem ſuae agitationis impendere in mi
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nutiarum ſuarum figuris aſſidu mutandis, ut omnes
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exiguos angulos, per quos tranſit, accurat poſſit im
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plere. </
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>Unde ſit, ut eius vis, valde diviſa, debilior ſit;
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ac ſingulae ejus minuti motibus globulorum ſecundi
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elementi ſibi vicinorum obſequantur, ſemperque pa
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ratae ſint ad exeundum ex illis anguſtiis, in quibus ad
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tam obliquos motus coguntur, atque ad rectà pergen
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dum verſus quaſcunque partes. </
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>Eam autem materiam,
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quae eſt in corpore Solis coacervata, valde multum
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virium ibi habere, propter conſenſum ſuarum omnium
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partium in eoſdem celerrimos motus, omneſque illas
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ſuas vires impendere in globulis ſecundi elementi cir
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cumjacentibus hinc inde propellendis. </
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LXXVI.
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De motu primi ele
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menti, dum verſatur
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inter globulos ſecun
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di. </
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Atque ex his poteſt intelligi, quantum materia
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primi elementi conferat ad illam actionem, in quâ
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lucem conſiſtere antè monuimus; & quomodo illa
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actio non modò verſus eclipticam, ſed etiam verſus
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polos in omnes partes ſe diſfundat. </
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>Nam primò, ſi
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putemus eſſe aliquod ſpatium in H, ſolâ materiâ primi
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elementi repletum, & tamen ſatis magnum ad unum
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aut plures ex globulis ſecundi recipiendos a, non </
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