Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627

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          <chap id="N10019">
            <p id="N16BC0" type="main">
              <s id="N16BFF">
                <pb pagenum="229" xlink:href="005/01/237.jpg"/>
                <emph type="italics"/>
              ipſum quidem B deorſum nutans, ſurſum eleuat C, ipſum au­
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              tem C deorſum nutans, B ſurſum eleuat, ambo autem ſurſum
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              eleuata hoc faciunt.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="N16C11" type="head">
              <s id="N16C13">COMMENTARIVS.</s>
            </p>
            <p id="N16C17" type="main">
              <s id="N16C19">Dvplicem Ariſtoteles cauſam affert, ob
                <expan abbr="quã">quam</expan>
              difficilius
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              procera ligna ab extremo ſuper
                <expan abbr="humerũ">humerum</expan>
              geſtantur,
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              quàm è medio, æquali exiſtente pondere, à quo to­
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              ta geſtandi difficultas naſci videretur. </s>
              <s id="N16C2C">Vna eſt, quia procera
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              ligna, vt plurimùm ex ſe flexibiliora ſunt, ac vibrationi, & flu­
                <lb/>
              ctuationi magis obnoxia, quàm breuiora. </s>
              <s id="N16C33">Quapropter ſi to­
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              ta ferè longitudo ligni ſuper humerum geſtati, à tergo po­
                <lb/>
              natur, parte tantum ante relicta qua manu ſuſtineatur, cre­
                <lb/>
              ſcit cum ipſa longitudine flexibilitas: vnde magis agitatio­
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              ne ipſa portantis fluctuando vibratur: vibratio autem non
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              parum geſtationem impedit, retrahendo quodammodo la­
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              tionem, dum frequentiſſimo motu ſurſum, ac deorſum vi­
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              brati ligni extremitas tendit,
                <expan abbr="proindeq.">proindeque</expan>
              non ad partes ante­
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              riores, iuxta motum progreſſiuum ferentis. </s>
              <s id="N16C4A">De quo vibra­
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              tionis effectu iterum redibit ſermo quæſtione ſequenti vbi
                <lb/>
              fuſiùs, ac luculentiùs declarabitur. </s>
              <s id="N16C51">Interim concluditur ex
                <lb/>
              Ariſtotele, propter maiorem huiuſmodi fluctuationem, ac
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              vibrationem difficilius procera ligna ab extremo ſuper hu­
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              merum geſtari, quàm ſi è medio ſuſtinerentur, atque aſpor­
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              tarentur, cum hoc pacto, minus ab humero, seu fulcimen­
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              to producta, minus vibrationi eſſent obnoxia. </s>
            </p>
            <p id="N16C5E" type="main">
              <s id="N16C60">Quoniam verò cauſa hæc vniuerſalis non eſt, nec adæ­
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              quata, ſiquidem nec omnia ligna quantumuis procera fle­
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              xibilia ſunt, aut vibrari poſſunt; nec difficultas geſtationis
                <lb/>
              à ſola vibratione
                <expan abbr="intercedẽte">intercedente</expan>
              procedit; hinc eſt, quod Ariſto­
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              teles alteram propoſitæ difficultatis cauſam, tanquam vni­
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              uerſaliorem in medium afferat. </s>
              <s id="N16C71">Ea autem eſt, quia quæ­
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              cumque difficilius eleuantur, difficilius pariter poſtquam
                <lb/>
              eleuata fuerint ſuſtinentur, aut geſtantur, cum tàm latio,
                <lb/>
              quàm ſuſtentatio ſit veluti continuata quædam eleuatio ob </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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