Borelli, Giovanni Alfonso
,
De motionibus naturalibus a gravitate pendentibus
,
1670
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compertam alij cauſæ nempe grauitati ipſius mer
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curij BC intra fiſtulam contenti. </
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<
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id
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">Hoc profectò con
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firmatur ex eo, quod prædicta fiſtula à digito ſuſten
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tata exercet ſuam compreſſionem contra pulpæ di
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giti extremitatem, quæ à perimetro orificij vitri
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abbr
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tã-gitur
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gitur</
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, & contunditur: non autem contra mediam pul
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pæ digiti partem, quæ ab ingenti pondere trium li
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brarum mercurij v. g. magis, & euidentius compri
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mi deberet quàm grauentur ambientes pulpæ digi
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ti partes à perimetro oriſicij vitri trium vnciarum. </
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Cap. 5. de ae
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ris grauitate
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æquilibrio,
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ſtructura, &
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vi elaterią
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eius.</
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Cap. 5. de ae
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ris grauitate
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æquilibrio,
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ſtructura, &
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vi elaterią
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eius.</
s
>
</
p
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<
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<
s
id
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">Hanc euidentiſſimam demonſtrationem conatur
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aduerſarius refellere, ait enim,
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hoc facilè reijcitur nem
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pè æqualis cylindrus aeris incumbit baſi ſupremæ obstructæ
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fistulæ ſiue mercurio, ſiue aqua, ſiue aere fi
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ſtula plena ſit, vt patet. </
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<
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id
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">Vnde ſi
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abbr
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quẽ
">quem</
expan
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haberet
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effectum, eumdem ſemper haberet, ſed hæc
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inſtantia futilis est, quare in ea diutiùs mi
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nimè hærendum.
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re non mercurio ſuſtenteturque infer
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nè eius orificium C à ſubiecta digiti
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pulpa, concedo, quod ſupernè digi
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tus premitur à columna aeris SAC, pa
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riterque
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expan
abbr
="
cõprimitur
">comprimitur</
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>
à vitri fiſtula AC,
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quidnam ex hoc deducit aduerſarius?
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</
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<
s
id
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">dicet, quod tantumdem ponderis pa
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teretur digitus ſubiectus
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expan
abbr
="
quãdo
">quando</
expan
>
vitrea
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fiſtula exinanita eſt, quàm ſi
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expan
abbr
="
mercuriũ
">mercurium</
expan
>
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BC contineret, ſcilicèt ſi fiſtula pen
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deret duas vncias, & aereus cylindrus SA
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pẽdat
">pendat</
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tres </
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