Descartes, René, Renati Des-Cartes principia philosophiae

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb pagenum="168"/>
              major & potentior evadet, ut ſi vortex H extendat
                <lb/>
              ſuam ſuperficiem uſque ad lineam 567, tunc facilè
                <lb/>
                <arrow.to.target n="fig43"/>
              vortex H totum ſidus C, non hîc
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              ampliùs fluidum & lucidum, ſed,
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              Cometae vel Planetae
                <arrow.to.target n="marg1069"/>
              du­
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              rum & opacum, ſecum abducet. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1061"/>
              CXVIII.
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              Quomodo iſtae multae,
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              maculae generentur. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1062"/>
              30</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1063"/>
              5</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1064"/>
              10</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1065"/>
              15</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1066"/>
              20</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1067"/>
              25</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1068"/>
              30</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1069"/>
              5</s>
            </p>
            <figure id="fig43" number="44"/>
            <p type="main">
              <s>
                <arrow.to.target n="marg1070"/>
                <lb/>
              Jam verò conſiderandum eſt,
                <lb/>
              quâ ratione debeat moveri talis
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              globus opacus & durus, ex mul­
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              tarum macularum
                <arrow.to.target n="marg1071"/>
              com­
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              poſitus, cùm primùm ab aliquo
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              vortice ſibi vicino abreptus eſt. </s>
              <s>Nempe ita gyrat cum
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              materiâ à quâ abripitur, ut quandiu minùs habet agi­
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              tationis quàm ipſa, verſùs centrum circa quod gyrat
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              detrudatur. </s>
              <s>Et quia omnes partes ejuſdem vorticis
                <arrow.to.target n="marg1072"/>
                <lb/>
              eâdem celeritate moventur, nec ſunt ejuſdem magnitu­
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              dinis; ſed à circumferentià uſque ad certum terminum
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              earum motus gradatim ſit tardior, ac deinde ab iſto ter­
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              mino uſque ad centrum gradatim fit celerior, & ipſae
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              ſunt minutiores, ut ſuprà dictum eſt a: ſi globus in
                <arrow.to.target n="marg1073"/>
                <lb/>
              vortice deſcendens adeò ſit ſolidus, ut priuſquam perve­
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              nerit ad terminum in quo partes vorticis omnium tar­
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              diſſimè moventur, acquirat agitationem aequalem agi­
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              tationi earum partium, inter quas verſatur, non ulte­
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              riùs deſcendit, ſed ex illo vortice in alios tranſit, &
                <arrow.to.target n="marg1074"/>
                <lb/>
              Cometa. </s>
              <s>Si verò minùs habeat ſoliditatis, atque idcirco
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              infra terminum illum deſcendat, ibi poſtea ad certam
                <lb/>
              diſtantiam à ſidere, quod illius vorticis centrum occu­
                <lb/>
              pat, ſemper manens, circa ipſum rotatur, & eſt Planeta b. </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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