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

Table of figures

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            <p type="main">
              <s id="s.002392">
                <pb pagenum="456" xlink:href="010/01/464.jpg"/>
                <arrow.to.target n="marg615"/>
                <lb/>
              illo tempore mouetur duplo
                <expan abbr="vehemẽtiori">vehementiori</expan>
              gradu ve­
                <lb/>
              locitatis, quàm ſubſequens laminula deſcendit; ſed
                <lb/>
              ab initio prædictæ duæ laminulæ contiguæ inter ſę
                <lb/>
              erant, igitur in ſecundo tempore diuelli, ac ſeparari
                <lb/>
              ab inuicem deberent; quod cum non contingat, pro­
                <lb/>
              cùl dubio ad erit aliqua cauſa, à qua colligatæ reti­
                <lb/>
              nentur; & hæc profectò erit gluten, & viſcoſitas illa
                <lb/>
              exigua ſuperiùs declarata, qua partes eiuſdem fluidi
                <lb/>
              adinuicem adhærent, & vinciuntur. </s>
              <s id="s.002393">Cum verò præ­
                <lb/>
              dictæ partes aquæ effluxæ à fiſtula inæqualibus velo­
                <lb/>
              citatibus moueantur, & nihilominùs non poſſint ab
                <lb/>
              inuicem diuelli, ſepararique, ſequitur illa attenua­
                <lb/>
              tio, & gracilitas, quæ in aqua poſt egreſſum fiſtulæ
                <lb/>
              obſeruatur, & propterea prædicta aqua magis, &
                <lb/>
              magis acuminatur, gracileſcitque. </s>
              <s id="s.002394">Sed hìc iam reddi
                <lb/>
              debet ratio, quare in progreſſu prædicta aqua fluens,
                <lb/>
              poſtquam ad aliquam exiguam gracilitatem redacta
                <lb/>
              eſt, poſtea diſrumpitur in plures partes, & guttulas;
                <lb/>
              & hic
                <expan abbr="dicendũ">dicendum</expan>
              eſt, quod vis, & energia prædicti glu­
                <lb/>
              tinis cum fit exigua non poteſt tandem reſiſtere ve­
                <lb/>
              hementiæ velocitatis continuò auctæ in ipſo aquæ
                <lb/>
              deſcenſu, & hæc proindè poterit diſrumpere vnio­
                <lb/>
              nem illam aquæ, qua priùs ferebatur, eo in loco v­
                <lb/>
              bi glutem ab aliqua cauſa externa debilitatum fue­
                <lb/>
              rit, aut curſus velocitas variatur, retardaturque ab
                <lb/>
              externo impedimento. </s>
            </p>
            <p type="margin">
              <s id="s.002395">
                <margin.target id="marg615"/>
              Cap. 11. gra­
                <lb/>
              uia in fluido
                <lb/>
              velocitati­
                <lb/>
              bus inæqua­
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              libus ferri
                <lb/>
              debere.</s>
            </p>
            <p type="main">
              <s id="s.002396">Quia verò ad rem noſtram nil confert motus aquę
                <lb/>
              fluentis in aere extra fiſtulam, propterea relicta hac
                <lb/>
              digreſſione, reliqua ſymptomata aquæ fluentis in fi­
                <lb/>
              ſtulis declarari debent. </s>
            </p>
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