Descartes, René, Renati Des-Cartes principia philosophiae

Page concordance

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              porum terreſtrium particulis, quibus alatur & renove­
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              tur, eſſe non poteſt. </s>
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              LXXX.
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              De naturâ ignis, ejuſ­
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              que ab ae
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              re diverſi­
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              tate. </s>
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              15</s>
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              20</s>
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              25</s>
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              30</s>
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              Cùm enim globuli ſecundi elementi occupent omnia
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              intervalla circa Terram, quae ſatis magna ſunt ad illos
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              capiendos, & ſibi mutuò omnes ita incumbant, ut
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              abſque aliis moveri non poſſint (niſi fortè circulariter
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              circa proprium axem), quamvis materia primi elemen­
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              ti, omnes exiguos angulos à globulis iſtis relictos re­
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              plens, in ipſis quam-celerrimè moveatur, ſi tamen non
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              habeat plus ſpatii, quàm quòd in iſtis
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              contine­
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              tur, non poteſt ibi habere ſatis virium ad particulas
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              terreſtres, quae omnes à ſe mutuò &, à globulis ſecundi
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              elementi ſuſtinentur, ſecum rapiendas, nec proinde ad
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              ignem generandum. </s>
              <s>Sed ut ignis alicubi primùm exci­
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              tetur, debent aliquâ vi expelli globuli coeleſtes,
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              in­
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              tervallis nonnullarum particularum terreſtrium, quae
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              deinde ab invicem disjunct, atque in ſolâ materiâ
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              primi elementi natantes, celerrimo ejus motu rapian­
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              tur & quaquaverſus impellantur. </s>
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              LXXXI.
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              Quomondo primùm
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              excitetur. </s>
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              5</s>
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              10</s>
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              15</s>
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              Utque ille ignis conſervetur, debent iſtae
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              terreſſtres eſſe ſatis craſſae, ſolidae, atque ad motum
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              aptae, ut à materiâ primi elementi ſic impulſae, vim ha­
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              beant globulos coeleſtes, à loco illo in quo eſt ignis,
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              &sin quem redire parati ſunt, repellendi; atque ita
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              impediendi ne globuli iſti rurſus ibi
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              inter­
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              valla primo elemento relicta, ſicque vires ejus fran­
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              gendo ignem exſtinguant. </s>
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              LXXXII.
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              Quomodo conſervetur. </s>
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              20</s>
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              25</s>
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              Ac praeterea particulae terreſtres, in globulos iſtos
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              impingentes, non poſſunt ab iis impediri, ne ulteriùs
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              pergant, & egrediendo ex eo loco in quo
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              ele­
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              mentum ſuas vires exercet, ignis formam amittant, </s>
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