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

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      <text>
        <body>
          <chap>
            <p type="main">
              <s id="s.001156">
                <pb pagenum="225" xlink:href="010/01/233.jpg"/>
                <arrow.to.target n="marg299"/>
                <lb/>
              mercurius eam attingat, propterea quòd partes illæ
                <lb/>
              aereæ, quæ priùs ſummè dilatatæ erant in amplo ſpa­
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              tio inani in ſummitate fiſtulæ, poſtea reſtricto ſpatio
                <lb/>
              ob mercurij aſcenſum denuò condenſantur, & proin­
                <lb/>
              dè mirum non eſt veſicam cyprinam ab aere eam am­
                <lb/>
              biente denſiori, quàm ſit aer intra veſicam
                <expan abbr="cõtentus">contentus</expan>
              ,
                <lb/>
                <expan abbr="compreſſionẽ">compreſſionem</expan>
              pati debere, & proinde detumeſcere. </s>
            </p>
            <p type="margin">
              <s id="s.001157">
                <margin.target id="marg299"/>
              Cap. 5. de ae
                <lb/>
              ris grauitate
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              æquilibrio,
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              ſtructura, &
                <lb/>
              vi elateria
                <lb/>
              eius.</s>
            </p>
            <p type="main">
              <s id="s.001158">Quando verò ſubdit, quod aer intra fiſtulam im­
                <lb/>
              miſſus dum mercurius eleuatus eſt ad prædictam al­
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              titudinem cubiti vnius, & quadrantis proximè,
                <expan abbr="ſursũ">ſursum</expan>
                <lb/>
              fertur tanto impetu, vt ſupremum fiſtulæ fundum, &
                <lb/>
              baſis diffringatur; diſſiliatque, & quia ab exceſſu exi­
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              gui ponderis tantus impetus creari non poteſt, hinc
                <lb/>
              deducit non poſſe à cylindro aeris ambiente, & ab
                <lb/>
              eius
                <expan abbr="põdere">pondere</expan>
              vllo pacto impelli neque mercurius, ne­
                <lb/>
              que aer in prædicta fiſtula. </s>
            </p>
            <p type="main">
              <s id="s.001159">
                <emph type="center"/>
              PROP. CVII.
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s id="s.001160">
                <emph type="center"/>
                <emph type="italics"/>
              Aer in fiſtula Torricelliana adueniens nedùm pondere, ſed
                <lb/>
              vi elaſtica, & impetu in motu acquiſito diffringere
                <lb/>
              fundum ſupremum fistulæ poteſt.
                <emph.end type="italics"/>
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s id="s.001161">HVic difficultati occurro
                <expan abbr="cõſiderando">conſiderando</expan>
              quòd mer­
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              curius in fiſtula ſursùm impellitur ab aere ex­
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              terno non vnica, ſed triplici vi, ponderis nimirum,
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              virtutis elaſticæ ad modum machinæ, & impetus in
                <lb/>
              motu acquiſiti: ſed præcipua, & inſignis actio in ca­
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              ſu noſtro impetui tribui debet. </s>
              <s id="s.001162">Quia poſtquam è
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              fiſtula cum mercurio extante in aere pendula effluit </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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