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

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            <p type="main">
              <s>
                <pb xlink:href="051/01/116.jpg" pagenum="85"/>
                <arrow.to.target n="fig21"/>
                <lb/>
              FE internum, crus verò FN
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              externum. </s>
              <s>Huius ſiphonis
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              variæ ſunt proprietates, provt
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              variè diſponi poterit crus eius
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              externum. </s>
            </p>
            <figure id="id.051.01.116.1.jpg" xlink:href="051/01/116/1.jpg" number="34"/>
            <p type="main">
              <s>
                <emph type="center"/>
              Prima Proprietas.
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s>Si enim crus exter­
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              num FN maneat integrum,
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              & ex ore N exſugatur aër; ſe­
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              quetur aqua vaſis, ob vacui
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              metum, & tota effluet, aut pœ­
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              nè tota (donec nimirum aquæ
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              ſuperficies ſuperior CD deſcen­
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              derit vſque ad oſculum E) ſi
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              internum crus fundum pœnè
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              tangat. </s>
              <s>Ratio eſt, quia per­
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              pendiculum externi cruris eſt
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              longius quàm interni. </s>
              <s>Si to­
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              tus ſiphon aquâ impleatur, &
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              vtrumque orificium claudatur, ac deinde minus crus EF aquæ
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              imponatur, maiori foras prominente, & ſimul vtrumque orifi­
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              cium aperiatur; idem fiet. </s>
            </p>
            <p type="main">
              <s>Effluet tamen inæqualiter, cum perpetuo
                <expan abbr="nimirũ">nimirum</expan>
              celerita­
                <lb/>
              tis decremento, quia perpendiculum aquæ cruris interni, altitu­
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              do nempe aquæ à puncto P uſque ad ſuperficiem ſuperiorem
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              aquæ vaſis (hæc enim ſola premit actu, reliquæ verò inferiores
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              actu non premunt, per dicta cap. 1. Proprietate V.) ſemper ma­
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              gis ac magis creſcit, ac proinde ſemper magis magiſque reſiſtit
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              perpendiculo aquæ cruris externi. </s>
            </p>
            <p type="main">
              <s>Quò verò crus externum longius fuerit infra ſuperficiem </s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg167"/>
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              ſuperiorem aquæ vaſis, eò fluet aqua celeriùs, & æqualibus tem­
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              poribus copioſiùs: quia tunc eò magis perpendiculum externi
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              ſuperabit perpendiculum interni cruris in longitudine, & vi pre­
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              mendi deorſum. </s>
              <s>Non tamen ſufficit, ut crus externum ſit </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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