Schott, Gaspar, Mechanica hydraulico-pneumatica. Pars I. Mechanicae Hydraulico-pnevmaticae Theoriam continet. , 1657

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="051/01/120.jpg" pagenum="89"/>
              æquè altum ac ſuperficies ſuperior aquæ vaſis, hoc eſt, quando </s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg172"/>
                <lb/>
              externum crus eſt æquale interno quoad longitudinem, uſque
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              ad aquæ ſuperficiem ſupremam vaſis, aqua non effluat ex crure
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              externo, etiamſi ſiphon ſit plenus aquâ, eſſe, quia tunc aqua ſi­
                <lb/>
              phonis continuatur cum aqua vaſis, & utriuſque ſuperficies ex­
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              trema æqualiter diſtat à centro Mundi: Cauſam verò cur, quan­
                <lb/>
              do externi cruris orificium eſt demiſſius ſuperficie extrema aquæ
                <lb/>
              vaſis, effluat, eſſe, quia tunc ſuperficies aquæ vaſis eſt altior, quàm
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              ſuperficies aquæ cruris externi, cum cujus aqua continuatur, ac
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              proinde tam diu fluere debet aqua vaſis, poſtquam ſemel fluere
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              cœpit, donec ſuperficies fiant æqualiter diſtantes à centro Ter­
                <lb/>
              ræ. </s>
              <s>Ob contrariam ergo cauſam, ſecundùm Heronem non
                <lb/>
              effluit aqua ex crure externo breviore, ſed refluit intra vas quia
                <lb/>
              nimirum ſuprema ſuperficies aquæ vaſis eſt declivior, quàm ſu­
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              perficies aquæ cruris externi. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg172"/>
                <emph type="italics"/>
              Heronis opi­
                <lb/>
              nio circa a­
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              quæ fluxum
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              è crure ex­
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              terno ſipho­
                <lb/>
              nis.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>Cœterùm cur aqua in ſecundo caſu, ex vaſe aſcendat ad
                <lb/>
              ſiphonis ſummitatem, contra ejus naturam, indeque deſcendat
                <lb/>
              ad orificium uſque externi cruris, non eſt ob cauſam jam adſigna­
                <lb/>
              tam, ſed ut impleat, aut impediat vacuum, ſeu quia trahitur vio­
                <lb/>
              lenter ad impediendum, aut implendum vacuum. </s>
              <s>Quoniam
                <lb/>
              enim ex crure externo extrahitur aër, trahit is ſecum, nè vacuus
                <lb/>
              maneat ſiphon, & diſcontinuentur corpora, nempe aër & aqua,
                <lb/>
              trahit inquam ſecum aquam uſque ad orificium cruris externi;
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              quò ubi pervenerit, nullam ampliùs violentiam patitur ab aëre,
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              nec ab alio extrinſeco agente, ſed naturæ ſuæ relinquitur, ut pars
                <lb/>
              illa incipiat, aut proſequatur fluxum, cujus ſuperficies extre­
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              ma minùs diſtat à centro Mundi, duretque fluxus, donec am­
                <lb/>
              bæ ſuperficies æquales fiant. </s>
            </p>
            <p type="main">
              <s>
                <emph type="center"/>
              Experimentum.
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s>ESſe porrò hanc, quam adſignavit Hero, genuinam dicti
                <lb/>
              phænomeni cauſam, confirmat ipſe tali Experimento. </s>
              <s>
                <emph type="italics"/>
              Si
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                <arrow.to.target n="marg173"/>
                <lb/>
              ſumentes,
                <emph.end type="italics"/>
              inquit,
                <emph type="italics"/>
              duo vaſa
                <emph.end type="italics"/>
              (cujuſmodi ſunt A & B in appo­
                <lb/>
              ſitis figuris)
                <emph type="italics"/>
              injiciemus humidum in utrumque ipſorum, & implentes
                <emph.end type="italics"/>
              </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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