Borelli, Giovanni Alfonso
,
De motionibus naturalibus a gravitate pendentibus
,
1670
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cylindro aereo SAC. digitus ergo
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cõ-primitur
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primitur</
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à duabus æqualibus viribus
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inter ſe contrarijs veluti forcipe, de
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orsùm quidem à pondere aereo SAC,
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ſursũ
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verò a vi preſſionis aeris SG re
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flexi per EC,
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eodẽ
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ferè modo quo vri
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natores pondus incumbentis aquæ
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percipiunt, quia nimirùm æquali vi
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ſursùm motu reflexo impelluntur ab a
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qua ſubiecta, ac grauantur ab aquą
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ſuprema
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deſcendẽte
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, vt ſuperius
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abbr
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oſtẽ-sũ
">oſten
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sum</
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fuit; igitur in caſu noftro digitus ſu
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ſtinebit tantummodò grauitatem dua
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rum vnciarum fiſtulæ vitreæ exinani
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tæ AC quia nimirùm hic eſt exceſſus
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ponderis totius columnæ aereæ, & vitreæ SAC ſupra
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aeream
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abbr
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columnã
">columnam</
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ei ęqualem SGC: diuerſiſſimus ergo
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eſt caſus fiſtulæ vitreæ mercurio ſtagnante repletæ,
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quia nimirùm vis compreſſiua
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abbr
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colũnæ
">columnæ</
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aereæ SG om
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ninò expletur abſumiturque eleuando
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abbr
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ſuſtinẽdoque
">ſuſtinendoque</
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mercurium BC, & ſic remaneat aerea columna SA
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(prætèr vitrum) non ſuſtentata à repulſione
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abbr
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eiuſdẽ
">eiuſdem</
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aeris SG, & proindè ſuſtineri debèt à digito ſubiecto
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eo mode, quo ſupra expoſuimus. </
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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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">Quapropter conuincens non eſt argumentum do
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ctiſſimi viri, ideoque remanent illibatæ rationes ſu
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periùs adductæ quibus perſuademur
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expan
abbr
="
mercuriũ
">mercurium</
expan
>
in fi
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ſtula ſuſtineri à preſſione circumambientis aeris. </
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