Descartes, René, Renati Des-Cartes principia philosophiae

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    <archimedes>
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        <body>
          <chap>
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              <s>
                <pb pagenum="208"/>
              particulas tertii elementi, ad menſuram ſuae magnitu­
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              dinis accommodatas: ita ut non tam facilè alii globuli
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              paullò majores per eaſdem tranſire poſſent. </s>
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            <p type="margin">
              <s>
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              XII.
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              Meatuſque inter ipſas
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              habuiſſe anguſtiores. </s>
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              <s>
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              Notandum denique tunc frequenter accidiſſe, ut
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              majores & ſolidiores ex iſtis particulis tertii elementi,
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              alias minores & tenuiores ſub ſe haberent, quia, cùm
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              uniformi tantùm motu circa Terrae axem volverentur,
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              atque ob irregularitates ſuarum figurarum ſibi mutuò
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              facilè adhererent etſi unaquaeque, quò ſolidior & craſ­
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              ſior erat, eò majori vi à globulis ſecundi
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              cir­
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              cumjacentibus verſus centrum pelleretur, non tamen
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              ſemper poterant ſolidiores ſe à minùs ſolidis ita extri­
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              care, ut infra ipſas deſcenderent; ſed non rarò eundem
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              ordinem, quem cùml primùm formarentur obtinue­
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              rant, retinebant. </s>
            </p>
            <p type="margin">
              <s>
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              XIII.
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              Non ſemper craſſiores,
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              tenuioribus inferio­
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              res fuiſſe. </s>
            </p>
            <p type="margin">
              <s>
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              10</s>
            </p>
            <p type="main">
              <s>­
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              Cùm
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              autem poſtea globus Terrae, in tres iſtas re­
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              giones diſtinctus, verſus Solem devolutus eſt (vortice
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              ſcilicet in quo antea erat abſumto), non magna qui­
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              dem mutatio in intimâ & mediâ ejus regione potuit
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              inde oriri; ſed quantum ad exteriorem, primùm duo,
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              deinde tria, poſtmodum quatuor, & plura alia corpora
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              diverſa, in eâ diſtingui debuerunt. </s>
            </p>
            <p type="margin">
              <s>
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              XVI.
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              De primâ formatione
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              diverſorum corpo­
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              rum, in tertiâ Terrae
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              regione. </s>
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            <p type="margin">
              <s>
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              20</s>
            </p>
            <p type="main">
              <s>
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              Quorum corporum produdionem paullo poſt expli­
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              cabo; ſed priuſquam hoc aggrediar, tres quatuorve
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              praecipuae actiones, à quibus pendet, hîc
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              conſide­
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              randae. </s>
              <s>Prima eſt globulorum coeleſtium motus, gene­
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              raliter ſpectatus. </s>
              <s>Secunda, gravitas. </s>
              <s>Tertia, lumen. </s>
              <s>Et
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              quarta, calor. </s>
              <s>Per globulorum coeleſtium generalem
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              motum, intelligo continuam eorum agitationem, quae
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              tanta eſt, ut non modò ſufficiat ad ipſos motu
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              circa Solem diurno circa Terram deferendos, ſed </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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