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

Table of figures

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