Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627

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        <body>
          <chap id="N10019">
            <p id="N124EB" type="main">
              <s id="N12504">
                <pb pagenum="77" xlink:href="005/01/085.jpg"/>
              te magis grauitaret, nempe ex plumbo adiuncto, & ex ma­
                <lb/>
              iori longitudine brachij, nunquam libra ponderibus, ac mer­
                <lb/>
              cibus vacua, in æquilibrio poſſet conſtitui, fed ſatis apertè
                <lb/>
              huiuſmodi lanx ſemper deorſum tenderet, altera verò ſur­
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              ſum;
                <expan abbr="ideoq.">ideoque</expan>
              nulla ex hoc oriretur deceptio,
                <expan abbr="nullaq.">nullaque</expan>
              fraus,
                <lb/>
              quæ ex deceptione conſequitur. </s>
              <s id="N1251E">Quando igitur Ariſtote­
                <lb/>
              les ait, purpurarios plumbum, vel quid ſimile in eam, quam
                <lb/>
              deferri volunt partem conſtituere, intelligendus eſt de par­
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              te, ſeu de brachio libræ minori, quod certè ſurſum aſcende­
                <lb/>
              ret ad deſcenſum maioris, ac deferri non poſſet ad conſti­
                <lb/>
              tuendum Aequilibrium, niſi ſimilibus adiumentis quantum
                <lb/>
              opus eſt deprimeretur; vt rectè etiam notat Cardanus lib.
                <lb/>
              1. de principijs prope finem. </s>
            </p>
            <p id="N12530" type="head">
              <s id="N12532">Quæſtio Secunda.</s>
            </p>
            <p id="N12535" type="main">
              <s id="N12537">C
                <emph type="italics"/>
              vr ſiquidem curſum ſuerit ſpartum, quan­
                <lb/>
              do deorſum lato pondere quiſpiam id amouet,
                <lb/>
              rurſum aſcendit libra: ſi autem deorſum con­
                <lb/>
              ſtitutum fuerit, non aſcendit, ſed manet? </s>
              <s id="N12543">An
                <lb/>
              quia ſurſum quidem ſparto existente plus li­
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              bræ extra perpendiculum fit: quare neceſſe
                <lb/>
              eſt deorſum ferri id quod plus eſt, donec aſcendat, quæ bifa­
                <lb/>
              riam libram diuidit, ad ipſum perpendiculum, cùm onus in­
                <lb/>
              cumbat ad libræ partem ſurſum raptum.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="N12554" type="main">
              <s id="N12556">
                <emph type="italics"/>
              Sit libra recta, vbi BC, ſpartum autem AD. </s>
              <s id="N1255C">Hoc igi­
                <lb/>
              tur deorſum proiecto perpendiculum erit, vbi ADM. </s>
              <s id="N12562">Si igi­
                <lb/>
              tur in ipſo B ponatur onus, B quidem erit, vbi E, C autem
                <lb/>
              vbi H s quamobrem ea, quæ bifariam libram ſecat, primò
                <lb/>
              quidem erit DM ipſius perpendiculi: incumbente autem
                <lb/>
              onere DG, quare libræ ipſius vbi EH, quòd extra perpen­
                <lb/>
              diculum eſt AM, vbi eſt PQ, maius eſi dimidio. </s>
              <s id="N12571">Si igitur
                <lb/>
              amoueatur onus ab ipſo E, neceſſe eſt deorſum ferri H mi­
                <lb/>
              nus enim eſt E. </s>
              <s id="N12579">Siquidem igitur ſurſum habuerit ſpartum,
                <emph.end type="italics"/>
              </s>
            </p>
          </chap>
        </body>
      </text>
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