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

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s id="s.000789">
                <pb pagenum="157" xlink:href="010/01/165.jpg"/>
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                <lb/>
              poſſit. </s>
              <s id="s.000790">Hoc profectò negatur, quia licèt aer non ſit
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              leuis, ſed per extruſionem à medio fluido ſursùm̨
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              expellatur, efformare debet quoque eminentiam il­
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              lam contornatam, & acuminatam, vt demonſtratum
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              eſt. </s>
            </p>
            <p type="margin">
              <s id="s.000791">
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              Cap. 4. poſi­
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              tiuam leui­
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              tatem noņ
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              dari.</s>
            </p>
            <p type="main">
              <s id="s.000792">Sed vtile erit parumpèr circumſtantias huius ex­
                <lb/>
                <arrow.to.target n="marg200"/>
                <lb/>
              perientię accuratiùs perpendere, inquit enim,
                <emph type="italics"/>
              par­
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              tem fistulæ ſuperiorem conuerte deorsùm, & erige fiſtulam
                <lb/>
              perpendicularitèr ad horizontem, videbis enim aerem, qui in
                <lb/>
              fundo fiſtulæ habuerat formam cylindri occupantem totam
                <lb/>
              cauitatem fistulæ in latum mox aſcendere, & ſic aſcendere,
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              vt ſe coarctans extendat in longum, & ſuperiorem cylindri
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              illius ſuperficiem, quæ plana erat ad modum diſculi, iam
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              conoidem factam eſſe.
                <emph.end type="italics"/>
              </s>
              <s id="s.000793"> Itaque hic author
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                <figure id="id.010.01.165.1.jpg" xlink:href="010/01/165/1.jpg"/>
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              cenſet quòd
                <expan abbr="quãdo">quando</expan>
              fiſtula RV
                <expan abbr="perpẽ-dicularitèr">perpen­
                  <lb/>
                dicularitèr</expan>
              ad
                <expan abbr="horizõtem">horizontem</expan>
              eleuatur, ae­
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              rem ROPX, quidum ſupernè conſiſte­
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              bat cylindricam formam habebat,
                <expan abbr="etiã">etiam</expan>
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              in hoc ſitu infimo perſeuerare poſſę
                <lb/>
              per aliquod tempus in eadem figurą
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              cylindrica, quod profectò ſi verum eſ­
                <lb/>
              ſet non facilè reddi ratio poſſet quare, & quemad­
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              modum à compreſſione aquæ
                <expan abbr="ſuperincumbẽtis">ſuperincumbentis</expan>
              pla­
                <lb/>
              na aeris ſuperficies OP efficiatur tumida, & conue­
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              xa, veluti eſt ABC. </s>
              <s id="s.000794">Alia igitur longè diuerſa ratione
                <lb/>
              res ſe habet. </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>