Borelli, Giovanni Alfonso, De motionibus naturalibus a gravitate pendentibus, 1670

Table of figures

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s id="s.000833">
                <pb pagenum="165" xlink:href="010/01/173.jpg"/>
                <arrow.to.target n="marg211"/>
                <lb/>
              eſt ſaltus, & proſilitio ligni ab aqua leuitatis eius
                <lb/>
              poſitiuæ, quandoquidem prædictus ſaltus effici po­
                <lb/>
              teſt in vtraque hypotheſi, ſcilicèt ſiuè admittatur,
                <lb/>
              ſiuè negetur leuitas poſitiua. </s>
            </p>
            <p type="margin">
              <s id="s.000834">
                <margin.target id="marg210"/>
              Lib. de vi
                <lb/>
                <gap/>
              ca. 9.</s>
            </p>
            <p type="margin">
              <s id="s.000835">
                <margin.target id="marg211"/>
              Cap. 4. poſi­
                <lb/>
              tiuam leui­
                <lb/>
              tatem noņ
                <lb/>
              dari.</s>
            </p>
            <p type="main">
              <s id="s.000836">Sed vt apertè inefficacia huius argumenti perci­
                <lb/>
              piatur, poſſumus ijſdem ferè verbis oſtendere falſum
                <lb/>
                <arrow.to.target n="marg212"/>
                <lb/>
              eſſe, quòd à leuitate poſitiua lignum ſursùm impel­
                <lb/>
              latur, ait enim
                <emph type="italics"/>
              ſaltum dependere non poſſe ab extruſione
                <lb/>
              aquæ ambientis, quia aqua non potest illud vltrà trude­
                <lb/>
              re, quàm ſit ipſi opus, vt locum inferiorem occupet.
                <emph.end type="italics"/>
              </s>
              <s id="s.000837"> Di­
                <lb/>
              cam ego eodem modo contra leuitatem poſitiuam,
                <lb/>
              quod non deberet eius leuitas propellere
                <expan abbr="lignũ">lignum</expan>
              plùs,
                <lb/>
              quàm requirit recta diſpoſitio, & conſtitutio natura­
                <lb/>
              lis, quia nempè (ſubijciam) non poteſt leuitas
                <expan abbr="lignũ">lignum</expan>
                <lb/>
              vltrà ſubleuare, quàm ſit ipſi opus vt locum ſuperi­
                <lb/>
              orem in aqua occupet, cùm ſit nempè leuitas nullą
                <lb/>
              alia de cauſa ligno communicata ab ipſa natura, niſi
                <lb/>
              vt vna pars ligni demerſa ſubſidat, altera verò ſupra
                <lb/>
              eam in aere emineat, non verò vt lignum integrum̨
                <lb/>
              extra aquam collocetin ipſo nempè aere. </s>
              <s id="s.000838">igitur con­
                <lb/>
              cedat aduerſarius neceſsè eſt non expulſum fuiſſe li­
                <lb/>
              gnum ſursùm à leuitate poſitiua ſupra
                <expan abbr="ſupremã">ſupremam</expan>
              aquæ
                <lb/>
              libellam, & hinc planè conijciet ſui argumenti inef­
                <lb/>
              ficaciam. </s>
            </p>
            <p type="margin">
              <s id="s.000839">
                <margin.target id="marg212"/>
              Retorquetur
                <lb/>
              idipſum ar­
                <lb/>
              gumentum
                <lb/>
              contra ad­
                <lb/>
              uerſarium. </s>
            </p>
            <p type="main">
              <s id="s.000840">Proſequitur deindè:
                <emph type="italics"/>
              quando cylindrus erat in fundo
                <expan abbr="noõ">non </expan>
                <lb/>
              poteſt inueniri, quæ pars aquæ illum ſursùm trudat non illa,
                <lb/>
              quæ in fundo, ſuppono enim perfectum cylindrum phyſicè,
                <lb/>
              & fundum vaſis exactè
                <expan abbr="planũ">planum</expan>
              adeò vt nulla ſenſibilis pars
                <lb/>
              aquæ interlabi posſit quamdiù cylinder vi detinetur ibi.
                <emph.end type="italics"/>
              </s>
            </p>
          </chap>
        </body>
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