DelMonte, Guidubaldo, Mechanicorvm Liber

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    <archimedes>
      <text>
        <body>
          <chap id="N1043F">
            <p id="id.2.1.3.3.0.0.0" type="main">
              <s id="id.2.1.3.3.1.6.0">
                <pb xlink:href="036/01/020.jpg"/>
              centrum grauitatis, vt in F; cum ex
                <lb/>
              puncto F verſus D ſit deſcenſus, at
                <lb/>
              verò verſus B aſcenſus. </s>
              <s id="id.2.1.3.3.1.7.0">quare pun­
                <lb/>
              ctum F deorſum mouebitur. </s>
              <s id="id.2.1.3.3.1.8.0">& quo
                <lb/>
              niam per rectam lineam in centrum
                <lb/>
              mundi moueri non poteſt, cum à
                <lb/>
              puncto C immobili propter lineam
                <lb/>
              CF prohibeatur; deorſum tamen
                <lb/>
              ſicuti eius natura poſtulat, ſemper
                <lb/>
              mouebitur. </s>
              <s id="id.2.1.3.3.1.9.0">& cum infimus locus ſit
                <lb/>
              D, per
                <expan abbr="circumferentiã">circumferentiam</expan>
              FD mouebi
                <lb/>
              tur, donec in D perueniat, in quo
                <lb/>
              ſitu manebit,
                <expan abbr="põduſq">ponduſq</expan>
              ; immobile exi
                <lb/>
                <figure id="id.036.01.020.1.jpg" place="text" xlink:href="036/01/020/1.jpg" number="5"/>
                <lb/>
              ſtet. </s>
              <s id="id.2.1.3.3.1.10.0">tum quia deorſum amplius moueri non poteſt, cum ex pun­
                <lb/>
              cto C ſit appenſum; tum etiam, quia in eius centro grauitatis ſuſti
                <lb/>
              netur. </s>
              <s id="id.2.1.3.3.1.11.0">Quando autem F erit in D, erit quoq; linea FC in DC,
                <lb/>
              ſimulq; horizonti perpendicularis. </s>
              <s id="id.2.1.3.3.1.12.0">pondus ergo nunquam mane
                <lb/>
              bit, donec linea CF horizonti perpendicularis non exiſtat. quod
                <lb/>
              oſtendere oportebat. </s>
              <s id="id.2.1.3.3.1.13.0">quod
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              oſtendere oportebat. </s>
            </p>
            <p id="id.2.1.4.1.0.0.0" type="margin">
              <s id="id.2.1.4.1.1.1.0">
                <margin.target id="note2"/>
                <emph type="italics"/>
              Supp.
                <emph.end type="italics"/>
              3.
                <emph type="italics"/>
              huius.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="id.2.1.5.1.0.0.0" type="main">
              <s id="id.2.1.5.1.1.1.0">Ex hoc elici poteſt, pondus quocunq; modo
                <lb/>
              in dato puncto ſuſtineatur, nunquam manere; ni
                <lb/>
              ſi quando a centro grauitatis ponderis ad id pun
                <lb/>
              ctum ducta linea horizonti ſit perpendicularis. </s>
            </p>
            <p id="id.2.1.5.2.0.0.0" type="main">
              <s id="id.2.1.5.2.1.1.0">Vt iiſdem poſitis, ſuſtineatur
                <lb/>
              pondus à lineis CG CH. </s>
              <s id="id.2.1.5.2.1.1.0.a">Dico
                <lb/>
              ſi ducta BC horizonti ſit perpen­
                <lb/>
              dicularis, pondus A manere. </s>
              <s id="id.2.1.5.2.1.2.0">ſi verò
                <lb/>
              ducta CF non ſit horizonti per­
                <lb/>
              pendicularis, punctum F deorſum
                <lb/>
              vſq; ad D moueri; in quo ſitu pon­
                <lb/>
              dus manebit, ductaq; CD horizon
                <lb/>
              ti perpendicularis exiſtet. </s>
              <s id="id.2.1.5.2.1.3.0">quæ om­
                <lb/>
              nia eadem ratione oſtendentur.
                <figure id="id.036.01.020.2.jpg" place="text" xlink:href="036/01/020/2.jpg" number="6"/>
              </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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