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

Table of figures

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              ſtulæ retinentur aliquo pacto, & ſuſpenduntur, ideo­
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              que impeditur fluxus earum. </s>
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              Cap. 11. gra­
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              uia in fluido
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              velocitati­
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              bus inæqua­
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              libus ferri
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              debere.</s>
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              PROP. CCXVI.
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              Quare æqua post egreſſum è fistula in aere ſubiecto non disſi­
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              petur, ſed ſenſim reſtringitur quouſque diſrumpatur ra­
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              tionem reddere.
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            <p type="main">
              <s id="s.002392">POſtquam fluidum ab infimo orificio fiſtulæ in ae­
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              re liberè effluere incipit, concipi debet, quod
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              quælibet ſuperficies, ſeu laminula prædicti fluidi
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              perducitur ad aerem liberum eo gradu velocitatis,
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              qui dependet à longitudine prædictæ fiſtulæ, ſeù
                <expan abbr="pẽ-duli">pen­
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                duli</expan>
              , idemque
                <expan abbr="dicẽdum">dicendum</expan>
              eſt de reliquis omnibus ſub­
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              ſequentibus aquæ laminulis, cum ad aeris confinium
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              perducuntur; deberet ergo integra laminula aquæ
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              egreſſa diuelli
                <expan abbr="ſeparariq;">ſepararique</expan>
              à ſuperficie alterius aquæ
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              laminulæ, quæ eam ſubſequitur, & ſecundo loco è fi­
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              ſtula egreditur in aere libero; ratio eſt quia prima la­
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              minula dum excurrit pertranſitque in aere ſpatium̨
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              æquale craſſitiei eius in dato aliquo tempore, neceſ­
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              ſariò gradum aliquem velocitatis maiorem acquiret,
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              correſpondentem motui, & tempori prædicto; ſed
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              in ſimili conſtitutione ſecunda aquæ laminula in e­
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              greſſu è fiſtula caret illo gradu velocitatis, quem ac­
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              quiſiuit prima laminula, igitur in ſecundo tempore
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              illi æquale prior laminula percurret ſpatium triplum
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              eius, quod priùs pertranſierat, & eius quod ſecunda
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              laminula excurrere debet, quia nimirùm in ſecundo </s>
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