Casati, Paolo
,
De igne dissertationes physicae
,
1686
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Diſſertatio Nona.
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truſus videtur ab externoaëre, vt vocant compreſſo; </
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<
s
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xml:space
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">nam ſic
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expreſſo æthere comprimeretur magis, & </
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<
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xml:space
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">illum iterum momen-
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to reſorberet, cum in aperto Recipiente aër deſineret eſſe rarus:
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</
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<
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xml:space
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">Sin autem, vt Ariſtoteli tribuitur, tredecies milleſima pars aë-
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ris, quæ priùs tam exiguo ſpatio continebatur, eadem adæqua-
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tè repleat totum Recipiens, hoc illud eſt, quod omnem captum ſu-
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perare dicitur; </
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>
<
s
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echoid-s7921
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xml:space
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">perinde quippe eſt, ac ſi dixeris pollicem, nulla facta
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adiectione, euadere in cubitum.</
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<
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<
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">Grad. </
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<
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">Equidem ab inanitatibus admittendis abhorreo: </
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>
<
s
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">ſicut
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enim tredecim millibus cyathorum vini ſi quis cyathum vnum
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aquæ admiſcuerit, non ſatis aptè aquâ plenum vas diceret, ſed
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vino; </
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>
<
s
xml:id
="
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xml:space
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">ita quoque ſi in Recipiente omne ſpatium fuerit inane,
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& </
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>
<
s
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xml:space
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">vnica tantùm pars tredecies milleſima relicta fuerit, abſolu-
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tè vacuum pronunciandum eſſet (omitto hìc Logicum axioma,
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*Negatio eſt malignantis naturæ*, nam exhauſtum & </
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<
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xml:space
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">exinanitum
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dicimus cyathum, in quo vna aut altera vini guttula relicta eſt)
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certè non plenum aëre, cùm inanitates tanto exceſſu ſuperent par-
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ticulam illam. </
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>
<
s
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="
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xml:space
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">Neque mihi facilè perſuadeo vim elaſticam aë-
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ris, quæ vtique eſt naturalis virtus ſe explicandi, & </
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>
<
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">dilatan-
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di, eam eſſe, vt exigat in tota aëriâ regione, ſi exularent
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vapores, tredecies millies plas eſſe Vacui quàm Aëris, atque
<
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huiuſmodi eſſe aërem, qui ſupra Atmoſphæram ſimplex & </
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<
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xml:space
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">ra-
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rus, neque compreſſus, reperitur. </
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<
s
xml:id
="
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xml:space
="
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">Admitterem potiùs vitrum
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ſubtiliſſimo ætheri peruium, illumque eâdem vi, qua aër di-
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ſtrahitur, intus attrahi, vt interijciatur ſeiunctis particulis, at-
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que iterum exprimi ab aëre ſe contrahente, & </
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<
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xml:space
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">ad naturales di-
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menſiones recipiente. </
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>
<
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xml:space
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">Quamquam pro eâ animi propenſione,
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qua in Ariſtotelicos feror, non adeò abſurdè eos loqui arbi-
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tror, qui materiam eandem, ſi diuerſimodè afficiatur, modò
<
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maiori, modò minori ſpatio coæquari poſſe exiſtimant. </
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>
<
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xml:space
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">Nemini
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certè abſonum videtur corpus aliquod veloci motu percurrere cen-
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tum palmos, quo tempore non niſi decem ſpatij palmos lento mo-
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tu percurrebat: </
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>
<
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xml:space
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">quia nimirum huic ſpatio aut illi ſucceſſiuè coa-
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ptarinon ex ſolâ corporis ſubſtantiâ pendet, ſed prout hac aut il-
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lâ velocitate mouetur: </
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>
<
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xml:space
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">neque enim idem eſt, corpus exiſtere,
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atque ipſum moueri hoc aut illo impetu, ſiuè extrinſecùs im-
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preſſo, ſiue promanante à naturali facultate. </
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<
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xml:space
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">Cum itaque cor-
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pus non ſit ita certo ſpatio aſfixum, vt nullatenus alibi </
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