Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627

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    <archimedes>
      <text>
        <body>
          <chap id="N10019">
            <p id="N16D94" type="main">
              <s id="N16DC5">
                <pb pagenum="233" xlink:href="005/01/241.jpg"/>
                <expan abbr="põdus">pondus</expan>
              grauatus humerus
                <expan abbr="deferẽtis">deferentis</expan>
              . </s>
              <s id="N16DDA">Etenim extrema ipſius
                <lb/>
              ligni valde ab eius medio, ſeu centro remota, dum inferius,
                <lb/>
              quantum ex ſe eſt, vibrando flectuntur ipſummet centrum,
                <lb/>
              ſeu medium ſecum rapere, ac detrahere conantur. </s>
              <s id="N16DE3">Quam­
                <lb/>
              obrem humerus, qui medio ſupponitur, non modo totius li­
                <lb/>
              gni ſuſtinet pondus, quod in ipſo grauitatis centro coacer­
                <lb/>
              uatur, ſed impetum quoque per eandem extremorum in­
                <lb/>
              flexionem ei illatum. </s>
              <s id="N16DEE">Tametſi hoc totum intelligatur non
                <lb/>
              iugiter, ſed per interualla tantum contingere, vt idem Bal­
                <lb/>
              dus animaduertit; Quandoquidem impetus ex ipſo motu
                <lb/>
              vibrationis acquiſitus quemadmodum deorſum tendendo
                <lb/>
              deprimit, ita ſurſum attollens ipſa extrema, portantem alle­
                <lb/>
              uiat, humerumque aliquantiſper nonnihil exonerat, vt milites
                <lb/>
              ſariſſam in humero geſtantes paſsim experiuntur. </s>
            </p>
            <p id="N16DFD" type="head">
              <s id="N16DFF">Quæſtio Vigeſimaoctaua.</s>
            </p>
            <p id="N16E02" type="main">
              <s id="N16E04">C
                <emph type="italics"/>
              vr iuxta puteos celonia faciunt eo, quo
                <lb/>
              viſuntur modo? </s>
              <s id="N16E0C">Ligno enim plumbi adiun­
                <lb/>
              gunt pondus, cùm alioqui vas ipſum & ple­
                <lb/>
              num, & vacuum pondus habeat. </s>
              <s id="N16E13">An quo­
                <lb/>
              niam duobus temporibus hauriendi diuiſo ope­
                <lb/>
              re (intingere enim oportet, & id ſurſum
                <lb/>
              trahere) continget demittere quidem vacuum faciliter,
                <lb/>
              trahere verò plenum difficulter. </s>
              <s id="N16E1E">Commodum igitur est pau­
                <lb/>
              lò tardius illud demittere, cùm multò leuiùs effectum ſuſtol­
                <lb/>
              latur pondus: id autem facit in extremo celonio adiunctum:
                <lb/>
              plumbum, aut lapis. </s>
              <s id="N16E27">Demittendi quidem maius ſit pon­
                <lb/>
              dus, quàm ſi ſolummodò vacuum oporteret demittere:
                <lb/>
              cùm verò plenum fuerit ſurſum id rapii plumbum, aut quic­
                <lb/>
              quid illi ponderis inerit. </s>
              <s id="N16E30">Quamobrem faciliora hoc modo
                <lb/>
              ambo ſunt, quàm illo.
                <emph.end type="italics"/>
              </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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