Gassendi, Pierre
,
De proportione qua gravia decidentia accelerantur
,
1646
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comparatum ad id, quo ex vno loco perueniri ad
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alium poteſt. </
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<
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">Fit etiam proinde, vt idem dicendum
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de acceleratione ſit; quippe acceleratio duo ſaltem
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tempora deſignat, in quorum vno celeriter, in alio
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celeriùs mobile feratur; ac intelligimus aliunde tem
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poribus illis æqualibus ſumptis, pauciores ſpatij par
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teis priore, plureis poſteriore percurri. </
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<
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">Et adnitere
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facere perſpectum, quidnam acceleratio ſit, nulla men
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tione temporis; ac pernoſces rem impoſſibilem factu
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eſſe. </
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<
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">Vtcumque enim plureis, plureiſque ſpatij par
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teis memore: niſi tamen adiicias voces
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deinceps, conſe
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quenter, ſucceßiuè,
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aut ſimileis alias, quæ ad tempus at
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tineant, non magis accelerationem, quàm ſimplicem
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celeritatem, aut potiuſ-quam motum ſimpliciter ſpe
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ctatum deſcribes. </
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<
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">Quanquam nihil eſt opus id vr
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geam, cùm tu pro confeſſo iam habeas; profeſſus
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nempe
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celeritatem in naturali deſcenſu grauium non modò
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ad locum, ſed ad tempus quoque reſpectum includere:
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ac
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mirari ſolùm quis poſſit, agnoſcere te in celeritate
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duplicem reſpectum, & velle tamen alterum, ipſum
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que præcipuum in tradenda definitione accelerati mo
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tus excluſum; ac inuehi in Galileum, qui incluſum
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voluerit. </
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<
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">Nam & licet, veluti tu reſpectum ad tem
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pus prætermiſſum fers, ſic ille reſpectum ad locum
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prætermitti poſſe cenſuerit: excuſari poteſt, quòd qui
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motum dicit, locum etiam dicat, quemadmodum
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mox attigi; & cùm foret ſolùm de celeritate ſuperue
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niento quæſtio, ideò nugationem deuitans, illam per
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reſpectum ad tempus, ſine quo intelligi nequeat, pu
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tâtit eſſe deſiniendam. </
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