Borelli, Giovanni Alfonso
,
De motionibus naturalibus a gravitate pendentibus
,
1670
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Cap. 8. cur
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exiguæ aquę
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guttæ ſupra
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aquæ
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aſcendunt.</
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PROP. CLXX.
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Facilè aquæ particulæ per aerem moueri poſſunt, non quia per
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eius poroſitates inſinuantur, ſed quia aereas particu
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las ſolutas, & amouibiles expellere è ſuis
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locis poßunt.
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<
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">HInc deducitur, quòd vera cauſa, quare aqua fa
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cilè per aquam penetrare, & fluere poteſt,
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ſit amplitudo pororum eius, ſed quia partes ipſius
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aquæ facilè expelli poſſunt è ſuis locis vt locum ce
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dant particulis aqueis, quæ ibidem inſinuari
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debẽt
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,
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& niſi anteriores aquæ particulæ è ſuis locis expelle
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rentur, nequaquàm aliæ partes ibidem ſuccedere, &
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fluere poſſent. </
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<
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">Si igitur hoc verum eſt, percipimus,
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quòd particulæ aqueæ poſſunt quoque aerem pene
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trare, & per eius profunditatem fluere, licèt aer po
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ros tàm reſtrictos, & anguſtos habeat, vt aquæ parti
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culæ per eos ingredi nequeant, ſufficit enim vt aereæ
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particulæ poſſint è ſuis loculis expelli, vt ibidem a
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queæ partes inſinuari poſſint, eodem modo, ac con
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tingit in ipſamet aqua. </
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id
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">Quod autem hoc faciliùs iņ
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aere effici valeat, quàm in aqua, patet ex eo, quòd ae
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reæ particulæ magis raræ, & expanſæ, & ideò minus
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reſiſtentes ſunt, quàm partes aqueæ; non erit igitur
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difficile vt partes aquæ ipſo aere ſolidiores è ſuis lo
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cis expellant particulas aeris, & ſic facilè per eas a
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qua moueatur. </
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<
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cõſtat
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aque
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as particulas perpetuò intra aerem inſinuari, vt ſupra </
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