Valerio, Luca, De centro gravitatis solidorum, 1604

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      <text>
        <body>
          <chap>
            <pb xlink:href="043/01/012.jpg" pagenum="4"/>
            <p type="head">
              <s>V.</s>
            </p>
            <p type="main">
              <s>Cuiuſlibet figuræ grauis centrum grauitatis
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              eſt punctum illud, à quo ſuſpenſum graue perſe
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              manet partibus quomodocumque circa conſti­
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              tutis. </s>
            </p>
            <p type="head">
              <s>VI.</s>
            </p>
            <p type="main">
              <s>Axis priſmatis, & pyramidis & eius fruſti di­
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              citur recta linea, quæ in pyramide à vertice ad
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              baſis centrum figuræ vel grauitatis pertinet: in
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              reliquis autem, quæ baſium oppoſitarum figuræ
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              vel grauitatis centra iungit. </s>
            </p>
            <p type="head">
              <s>VII.</s>
            </p>
            <p type="main">
              <s>Si qua figura ſolida planis parallelis ita ſeca­
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              ri poſſit, vt quæcumque ſectiones centrum ha­
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              beant, & ſint inter ſe ſimiles; aliqua autem recta
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              linea, ſiue ad centra baſium oppoſitarum prædi­
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              ctis ſectionibus parallelarum, & ſimilium, vt in
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              cylindro; ſiue ad verticem, & centrum baſis ter­
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              minata, vt in cono, hemiſphærio, & conoide, tran­
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              ſeat per centra omnium prædictarum ſectionum;
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              ea talis figuræ axis nominetur: ipſa autem figura,
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              ſolidum circa axim. </s>
              <s>Quæ ſi vel vnam tantum ha­
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              beat baſim, vel duas inæquales, & parallelas: dua­
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              rum autem quarumlibet prædictarum ſectionum
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              vertici, vel minori baſi propinquior ſit minor re-</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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