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

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              <s id="s.002412">
                <pb pagenum="459" xlink:href="010/01/467.jpg"/>
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              quæ moles ab infimo eiuſdem fiſtulæ orificio egredi­
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              untur, & propterea vna, & eadem velocitate deter­
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              minata ab eius ſumma altitudine aqua fluit, (ſi tamen
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              ſemper fiſtula repleta ſupponatur); ergo æqualibus
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              temporibus tanta aquæ moles ſupernè infunditur,
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              quanta inferiùs ab eadem fiſtula egreditur, quare in
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              progreſſu motus intra fiſtulam
                <expan abbr="eadẽ">eadem</expan>
              velocitate à qua
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              excurrit, qua infernè egreditur, cùmque hæc veloci­
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              tas ab altitudine caſus, ſeu longitudine penduli, vel
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              fiſtulæ determinetur, igitur velocitas aquæ intra ca­
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              nalem fiſtulæ ſemper eumdem gradum habet, æqua­
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              lem ſcilicèt ei, qui fiſtulæ longitudini competit. </s>
              <s id="s.002413">po­
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              ſtea, vt ſubſequentes propoſitiones demonſtrari com­
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              modiùs poſſint; Primò ſupponendum eſt vt euidens,
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              quòd ab eodem fiſtulæ orificio,
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              ta­
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              men erecto ad directionem aquæ fluentis, duæ moles
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              æquales aquæ æqualibus temporibus egreſſæ neceſ­
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              ſariò æqualibus velocitatibus egredi debent; & è
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                uerſo</expan>
              ſi velocitates æquales fuerint, paritèr moles a­
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              quæ æqualibus temporibus effluxæ erunt quoque in­
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              ter ſe æquales. </s>
              <s id="s.002414">Vnde colligitur, quòd velocitatę
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              dupla eodem tempore paritèr dupla moles aquæ ab
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              æquali foramine egreditur, idemque dicendum eſt
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              de qualibet æquè multiplici proportione: paritèrque
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              ſi velocitas partes fuerit alterius velocitatis, paritèr
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              moles aquæ ab æqualibus foraminibus eodem tem­
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              pore egredientes eamdem proportionem commen­
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              ſurabilem habebunt, quam habent
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              velocitates.
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              </s>
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            <p type="margin">
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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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            <p type="margin">
              <s id="s.002416">
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              Supp. 1.</s>
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            <p type="margin">
              <s id="s.002417">
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              Supp. 2.</s>
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            <p type="main">
              <s id="s.002418">Non ſecùs ſi ab eodem foramine eadem velocita-</s>
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          </chap>
        </body>
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