Descartes, René, Renati Des-Cartes principia philosophiae

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb pagenum="214"/>
              dine planè aequalis. </s>
              <s>Sit, exempli cauſſâ, B corpus ter­
                <lb/>
              reſtre in medio ae
                <gap/>
              re exſiſtens, & conſtans pluribus par­
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              ticulis tertii elementi, quàm moles ae
                <gap/>
              ris ipſi aequalis,
                <lb/>
                <arrow.to.target n="fig57"/>
              ac proinde pauciores
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              vel anguſtiores
                <arrow.to.target n="marg1346"/>
                <lb/>
              poros, in quibus mate­
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              ria coeleſtis continea­
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              tur: manifeſtum eſt, ſi
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              hoc corpus B verſus I
                <lb/>
              deſcendat, molem ae
                <gap/>
                <arrow.to.target n="marg1347"/>
                <lb/>
              ris ei aequalem in ejus
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              locum aſcenſuram. </s>
              <s>Et
                <lb/>
              quia in iſtâ mole ae
                <gap/>
              ris,
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              plus materiae coeleſtis
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              quàm in eo continetur, manifeſtum etiam eſt, in
                <arrow.to.target n="marg1348"/>
                <lb/>
              eſſe vim ad illud deprimendum. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1342"/>
              XXIII.
                <lb/>
              Quomodo partes omnes
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              Terrae, ab iſtâ mate­
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              riâ coeleſti deorſum
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              pellantur, & ita fiant
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              graves. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1343"/>
              15</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1344"/>
              20</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1345"/>
              25</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1346"/>
              5</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1347"/>
              10</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1348"/>
              15</s>
            </p>
            <figure id="fig57" number="59"/>
            <p type="main">
              <s>
                <arrow.to.target n="marg1349"/>
                <lb/>
              Atque ut hic calculus red ineatur, conſiderandum
                <lb/>
              eſt, in meatibus iſtius corporis B eſſe etiam aliquid
                <lb/>
              materiae coeleſtis, quae opponitur aequali quantitati
                <lb/>
              ſimilis materiae coeleſtis, quae in ae
                <gap/>
              ris
                <arrow.to.target n="marg1350"/>
              contine­
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              tur, eamque reddit otioſam; itemque in mole ae
                <gap/>
              ris
                <lb/>
              eſſe aliquas partes terreſtres, quae opponuntur to­
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              tidem aliis partibus terreſtribus corporis B, nihilque
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              in eas eſſiciunt. </s>
              <s>His autem utrimque detractis, quod
                <lb/>
              reliquum eſt materiae coeleſtis in iſtâ mole ae
                <gap/>
              ris,
                <arrow.to.target n="marg1351"/>
                <lb/>
              agere in id quod reliquum eſt partium terreſtrium
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              in corpore B; atque in hoc uno ejus gravitatem
                <lb/>
              conſiſtere. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1349"/>
              XXIV.
                <lb/>
              Quanta ſit in quoque
                <lb/>
              corpore gravitas. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1350"/>
              20</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1351"/>
              15</s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg1352"/>
                <lb/>
              Utque nihil omittatur, advertendum etiam eſt, per
                <lb/>
              materiam coeleſtem non hic intelligi ſolos
                <arrow.to.target n="marg1353"/>
                <lb/>
              ſecundi elementi, ſed etiam materiam primi iis </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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