Borelli, Giovanni Alfonso
,
De motionibus naturalibus a gravitate pendentibus
,
1670
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actu accenſa, vel
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abbr
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inflãmata
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nihilominùs valdè exca
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lefacta, & rara eſſe ſolent, & hæc quidem raritas, &
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agitatio
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abbr
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earũdẽ
">earundem</
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fumi
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particularũ
">particularum</
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, producta ab exha
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lationibus igneis, à quibus priùs euulſæ, & ſegre
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gatæ fuerunt à maſſa lignea, vel alterius corporis, eſt
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in cauſa vt non poſſint ampliùs in anguſtis illis poro
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ſitatibus retineri, & proindè coguntur ingenti impe
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/>
tu eructari, effluere que per orificia patentia earum
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dem poroſitatum, quæ orificia cùm vndique pateant,
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fit vt fumus exeat nedùm è parte ſuprema ligni, ſed
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etiam à parte infima, & laterali. </
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<
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">Diffractis itaque re
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pagulis carcerum, egreſſiſque fumi partibus in aere
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aperto non ſine ſocietate ignearum exhalationum̨
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maſſam componunt minùs grauem ipſo aere
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abbr
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ambiẽ-te
">ambien
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te</
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, & ideò poterunt ab eodem exprimi, & lento mo
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tu impelli ſursùm atque tàm diù aſcenſus perſeuera
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bit, quouſque exhalationes igneæ ab ipſis particulis
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fumi non diſcedant
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abbr
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exhalẽtque
">exhalentque</
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, & pariter vſquequò
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deficiat impetus præconceptus ab ipſo impulſu præ
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cedenti, à quo lento quidem motu per aerem
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abbr
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fluctuã-do
">fluctuan
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do</
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>
aliquantiſper fumi commoueri poterunt, cùm̨
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præterea exiguitas particularum eiuſdem fumi cau
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ſa ſufficiens ſit, vt diù à qualibet minima aeris agita
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tione
<
expan
abbr
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ſuſpẽſæ
">ſuſpenſæ</
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retineri poſſint, vt videmus puluerem
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terreſtrem grauiſſimum per aerem diſpergi, ibiquę
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diù retineri, vt experientia docet. </
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