Valerio, Luca, De centro gravitatis solidorum, 1604

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        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="043/01/088.jpg" pagenum="80"/>
              Dico ſphæræ, vel ſphæroidis ABCD, centrum grauitatis
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              eſse E. </s>
              <s>Sint enim bini axes ſphæræ, vel ſphæroidis inter
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              ſe ad rectos angulos; & in ſphæroide ſit maior diameter
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              BD, minor AC, per binos autem hos axes plana tran­
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              ſeuntia ad eos axes erecta, ſecent ſphæram, vel ſphæroidem.
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              </s>
              <s>Qua ratione axes dimidij erunt axes hemiſphærij, vel he­
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              miſphæroidis: hemiſphærium autem, & ſphæroidis eſt fi­
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                <figure id="id.043.01.088.1.jpg" xlink:href="043/01/088/1.jpg" number="58"/>
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              gura circa axim in alteram partem deficiens, qualium om­
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              nium figurarum centrum grauitatis eſt in axe; igitur hemi­
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              ſphærij, vel hemiſphæroidis ABCD, centrum grauitatis
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              eſt in axi BE, ſicut & reliqui ADA, in axi ED; totius
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              igitur ſphæræ, vel ſphæroidis ABCD centrum grauitatis
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              eſt in axi BD. </s>
              <s>Eadem ratione & in axi AC; in communi
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              igitur ſectione centro E. </s>
              <s>Quod demonſtrandum erat. </s>
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            <p type="head">
              <s>PRIMI LIBRI FINIS.</s>
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            <p type="head"/>
          </chap>
        </body>
      </text>
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