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

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          <chap>
            <p type="main">
              <s id="s.000146">
                <pb pagenum="31" xlink:href="010/01/039.jpg"/>
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                <lb/>
              molis ſupra baſim HD inſiſteret procul dubio ad ma­
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              iorem ſublimitatem eleuaretur prædictum fluidum̨
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              minùs graue ſpecie, quàm aqua AH, cuius
                <expan abbr="abſolutũ">abſolutum</expan>
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              pondus æquale eſſet ponderi eiuſdem aquæ commu­
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              nis AH, quare ab eleuatiori loco fluidum prædictum
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              deorsùm excurrendo eleuaret lignum depreſſum BD
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              præcisè vt in ſiphone ſuperiùs expoſito contingeret. </s>
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            <p type="margin">
              <s id="s.000147">
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              Cap. 2. dę
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              momentis
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              grauium in
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              fluido inna­
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              tantium.</s>
            </p>
            <p type="main">
              <s id="s.000148">Ex hac theoria facili negotio reſolui ac
                <expan abbr="demõſtra-ri">demonſtra­
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                ri</expan>
              poſſunt omnes propoſitiones, quæ ab Archimedę
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              in primo de infidentibus humido demonſtrantur. </s>
            </p>
            <p type="main">
              <s id="s.000149">
                <emph type="center"/>
              PROP. XII.
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              </s>
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            <p type="main">
              <s id="s.000150">
                <emph type="center"/>
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              In aſcenſu, vel deſcenſu ſolidi in fluide neque libra linearis
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              eſt, neque habet centrum grauitatis in vno puncto
                <lb/>
              ſed libra eſſe ſolet ſuperficialis, cuius fulci­
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              mentum eſt linea circa centrum figuræ,
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              & grauitas communis exercetur
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              quoque in linea aliqua.
                <emph.end type="italics"/>
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s id="s.000151">SOlummodò indicabo
                <expan abbr="nõ">non</expan>
              ſemper vſurpari in præ­
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              dicta mechanica operatione punctum, quod
                <expan abbr="cõ-mune">com­
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                mune</expan>
              centrum grauitatis vocari vulgò ſolet; propte­
                <lb/>
              rea quòd libra compoſita ex ſolido & fluido ambien­
                <lb/>
              te non ſemper linearis eſt, ſed ſuperficiem aliquando
                <lb/>
              componit, in qua nedum fulcimentum, ſed etiam lo­
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              cus vbi exercetur communis grauitas linea eſſe ſolet
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              aliquando recta, aliquando curua, & multoties com­
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              poſita ex pluribus rectis. </s>
              <s id="s.000152">ſi enim in medio aquæ im­
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              mergatur directè & perpendiculariter ad
                <expan abbr="horizontẽ">horizontem</expan>
              </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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