Borelli, Giovanni Alfonso
,
De motionibus naturalibus a gravitate pendentibus
,
1670
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uerſario, quòd fiſtula AC nil prorsùs ab incluſo mer
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curio BC grauatur, & ſic de facto experimur appli
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cata digiti pulpa ori infimo fiſtulæ; quod in partę
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intermedia pulpæ à mercurio tacta nulla compreſſio,
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nec
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cõtuſio
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<
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abbr
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neq;
">neque</
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grauitatio perſentitur, quando præ
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lb
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cisè mercurij altitudo BC eſt vnius cubiti, &
<
expan
abbr
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qua-drãtis
">qua
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drantis</
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ferè; quod ſieius altitudo ſupra CB augeatur,
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<
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tũc
">tunc</
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<
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ſolũmodò
">ſolummodò</
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percipitur in medio pulpæ digiti ſub
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iecti
<
expan
abbr
="
cõpreſſio
">compreſſio</
expan
>
grauitans iuxtà
<
expan
abbr
="
mẽſurã
">menſuram</
expan
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exceſſus mer
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lb
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curij ſupra eum qui altitudinem vnius cubiti, & qua
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drantis occupat, & ſi è contrà mercurius deprima
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tur violentèr infra debitam altitudinem BC, tunc ne
<
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dùm ſubiecta pulpa digiti non comprimitur, ſed è
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contrà exugitur, vt efficiunt cucurbitæ medicæ, &
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hyrudines. </
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<
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id
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s.001111
">Sed dicet aduerſarius ſi mercurius BC
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lb
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nil grauitat, nec comprimit digitum, quare requi
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lb
/>
ritur vis, aut libræ, aut digiti ſubiecti, quæ nedum̨
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lb
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æquet pondus ſolias vitri AC, ſed prætereà ſuſtine
<
lb
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re valeat duas libras v. g. quas
<
expan
abbr
="
pẽdit
">pendit</
expan
>
mercurius BC?
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/>
</
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>
<
s
id
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s.001112
">Reſpondeo aereum cylindrum SA fiſtulæ vitreæ in
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lb
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cumbentem ſua grauitate agere non minùs, quàm̨
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lb
/>
collateralis cylindrus aereus SG, cumque vitrum̨
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CA non repellatur æquali actione contraria ſursùm
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lb
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ab aere collaterali SG, quia huius vis exercetur, &
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lb
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omninò expletur ſuſtentando mercurium BC; igitur
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neceſſariò vitrum CA comprimitur deorsùm à gra
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uitate aeris incumbentis SA, cuius pondus æqualę
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eſt mercurio BC hinc fit vi ex præconcepta falſa opi
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nione tribuamus compreſſionem aeris SA nobis in-</
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