Borelli, Giovanni Alfonso
,
De motionibus naturalibus a gravitate pendentibus
,
1670
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s.001984
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374
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xlink:href
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010/01/382.jpg
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ex aliorum Authorum principijs. </
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<
s
id
="
s.001985
">Et primò ſi aquą
<
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ſponte ſua aſcendit intra fiſtulæ cauitatem à vi parti
<
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cularum eius ſe mouentium, igitur aut grauitate om
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ninò carent, aut in tali caſu eam non exercent (quod
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vltrò aliqui Authores concedunt) ſi inquam hoc ve
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rum eſt, impoſſibile eſſet vt aqua in fiſtula immiſſą
<
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perpendiculariter erecta exerceret vllam vim com
<
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preſſiuam deorsùm, & ideò ſi fiſtula infernè prolon
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garetur, nullo pacto aqua ibidem deorsùm deſcende
<
lb
/>
ret, quod tamen experientiæ refragatur, nam
<
expan
abbr
="
eadẽ
">eadem</
expan
>
<
lb
/>
fiſtula cum aqua contenta in aere translata, & per
<
lb
/>
pendiculariter ad horizontem erecta ſi inuerſo ſitu
<
lb
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diſponatur vt pars eius ſupina A fiat prona, aut ei alia
<
lb
/>
fiſtula infernè adnectatur, aqua in ea contenta celeri
<
lb
/>
motu deſcendit, ſi madida fuerit, quouſque prope
<
lb
/>
infimum orificium perducatur; igitur falſum eſt a
<
lb
/>
quæ in fiſtula contentæ particulas grauitate priuari,
<
lb
/>
proindeque ſponte ſua intra fiſtulam aſcendere. </
s
>
<
s
id
="
s.001986
">
<
expan
abbr
="
Cũ
">Cum</
expan
>
<
lb
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verò aiunt cauſam prædicti aſcenſus aquæ penderę
<
lb
/>
ex eo quòd eius particulæ naturali inſtinctu feruntur
<
lb
/>
versùs fluidum aqueum, vel aquæ analogum
<
expan
abbr
="
contẽ-tum
">conten
<
lb
/>
tum</
expan
>
in vitri internis poroſitatibus, nec à grauitate,
<
lb
/>
quam negant, impediri poſſunt: ſi hoc, inquam, ve
<
lb
/>
rum eſſet, madefacta vniuerſa fiſtulæ interna cauita
<
lb
/>
te, & poſtea exinanita, atque immerſo orificio infra
<
lb
/>
aquæ ſubiectæ
<
expan
abbr
="
libellã
">libellam</
expan
>
eleuari ſemper altiùs deberet
<
lb
/>
aqua vſque ad fiſtulæ ſupremum orificium, quod ta
<
lb
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men eſt falſum, non ergo ſponte ſua aqua intra fiſtu
<
lb
/>
lam eleuatur. </
s
>
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</
body
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text
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