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

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              <s id="s.000778">
                <pb pagenum="156" xlink:href="010/01/164.jpg"/>
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            <p type="margin">
              <s id="s.000779">
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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>
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            <p type="margin">
              <s id="s.000780">
                <margin.target id="marg196"/>
              In prop. 74.</s>
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            <p type="margin">
              <s id="s.000781">
                <margin.target id="marg197"/>
              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.000782">His præmiſſis examinari modò debent ſigillatim̨
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              oppoſitiones ſuperiùs adductæ. </s>
            </p>
            <p type="main">
              <s id="s.000783">
                <emph type="center"/>
              PROP. LXXVII.
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              </s>
            </p>
            <p type="main">
              <s id="s.000784">
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              Et primo loco dieo, quòd figura inflata, conuexa, & acumi­
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              nata quam aer acquirit in fiſtula aqua plena in parte an­
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              teriori eius motus dum ſursùm aſcendit, non eſt argu­
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              mentum efficax, & euincens aerem ſursùm
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              moueri à principio intrinſeco ſuæ
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              leuitatis.
                <emph.end type="italics"/>
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s id="s.000785">QVia demonſtratum eſt corpora fluida
                <expan abbr="cedẽtia">cedentia</expan>
              , </s>
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            <p type="main">
              <s id="s.000786">
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              & homogenea ſi moueantur intra aliud cor­
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              pus Huidum ſiue propria, & intrinſeca virtute moti­
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              ua, ſiue ab impulſu facto à cauſa extrinſeca, aut ab
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              ipſo medio, neceſſariò in anteriori parte motus il­
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              lius tume fieri, contornari, & aliquantiſper acumina­
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              ri debere, quaproptèr tumor, qui in aere aſcenden­
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              te per aquam obſeruatur, neque iuuat, neque nocet,
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              nec ſuadet, neque diſſuadet leuitatem poſitiuam̨.
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              </s>
              <s id="s.000787">Mirum tamen eſt non animaduerſam fuiſſe cauſam
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              cauitatis eiuſdem aeris in parte poſtica eius motus,
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              à qua cauitate, ſicut oſtenſum eſt, euidentèr deduci­
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              tur impoſſibile eſſe aerem ab intrinſeco principio le­
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              uitatis ſursùm ferri, ſed potiùs per
                <expan abbr="extruſionẽ">extruſionem</expan>
              me­
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              dij fluidi ſursùm eleuari. </s>
            </p>
            <p type="margin">
              <s id="s.000788">
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              Prop. 72.</s>
            </p>
            <p type="main">
              <s id="s.000789">Cùm poſtea inſtat aduerſarius aerem, dum per a­
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              quam aſcendit, acumen eius ſursùm porrigere, vt fa­
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              ciliùs terebrare, & perforare aquam vi ſuæ leuitatis </s>
            </p>
          </chap>
        </body>
      </text>
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