Borelli, Giovanni Alfonso
De motionibus naturalibus a gravitate pendentibus
1670
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<arrow.to.target n="marg290"/>
<lb/>
cylindro aereo SAC. digitus ergo
<expan abbr="cõ-primitur">
com
<lb/>
primitur
</expan>
à duabus æqualibus viribus
<lb/>
inter &longs;e contrarijs veluti forcipe, de­
<lb/>
orsùm quidem à pondere aereo SAC,
<lb/>
<expan abbr="&longs;ursũ">
&longs;ursum
</expan>
verò a vi pre&longs;&longs;ionis aeris SG re­
<lb/>
flexi per EC,
<expan abbr="eod&etilde;">
eodem
</expan>
ferè modo quo vri­
<lb/>
natores pondus incumbentis aquæ
<expan abbr="nõ">
non
</expan>
<lb/>
percipiunt, quia nimirùm æquali vi
<lb/>
&longs;ursùm motu reflexo impelluntur ab a­
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qua &longs;ubiecta, ac grauantur ab aqu&atail;
<lb/>
&longs;uprema
<expan abbr="de&longs;cend&etilde;te">
de&longs;cendente
</expan>
, vt &longs;uperius
<expan abbr="o&longs;t&etilde;-sũ">
o&longs;ten­
<lb/>
sum
</expan>
fuit; igitur in ca&longs;u noftro digitus &longs;u­
<lb/>
&longs;tinebit tantummodò grauitatem dua­
<lb/>
rum vnciarum fi&longs;tulæ vitreæ exinani­
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<figure id="id.010.01.226.1.jpg" xlink:href="borel_demot_010_la_1670/010-01-figures/010.01.226.1.jpg"/>
<lb/>
tæ AC quia nimirùm hic e&longs;t exce&longs;&longs;us
<lb/>
ponderis totius columnæ aereæ, & vitreæ SAC &longs;upra
<lb/>
aeream
<expan abbr="columnã">
columnam
</expan>
ei &etail;qualem SGC: diuer&longs;i&longs;&longs;imus ergo
<lb/>
e&longs;t ca&longs;us fi&longs;tulæ vitreæ mercurio &longs;tagnante repletæ,
<lb/>
quia nimirùm vis compre&longs;&longs;iua
<expan abbr="colũnæ">
columnæ
</expan>
aereæ SG om­
<lb/>
ninò expletur ab&longs;umiturque eleuando
<expan abbr="&longs;u&longs;tin&etilde;doque">
&longs;u&longs;tinendoque
</expan>
<lb/>
mercurium BC, & &longs;ic remaneat aerea columna SA
<lb/>
(prætèr vitrum) non &longs;u&longs;tentata à repul&longs;ione
<expan abbr="eiu&longs;d&etilde;">
eiu&longs;dem
</expan>
<lb/>
aeris SG, & proindè &longs;u&longs;tineri debèt à digito &longs;ubiecto
<lb/>
eo mode, quo &longs;upra expo&longs;uimus.
</s>
</p>
<p type="margin">
<s id="s.001125">
<margin.target id="marg290"/>
Cap. 5. de ae­
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ris grauitate
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æquilibrio,
<lb/>
&longs;tructura, &
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vi elateri&atail;
<lb/>
eius.
</s>
</p>
<p type="main">
<s id="s.001126">
Quapropter conuincens non e&longs;t argumentum do­
<lb/>
cti&longs;&longs;imi viri, ideoque remanent illibatæ rationes &longs;u­
<lb/>
periùs adductæ quibus per&longs;uademur
<expan abbr="mercuriũ">
mercurium
</expan>
in fi­
<lb/>
&longs;tula &longs;u&longs;tineri à pre&longs;&longs;ione circumambientis aeris.
</s>
</p>
<p type="main">
<s id="s.001127">
Tran&longs;eamus iam ad examen tertiæ rationis ab eo-
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