Gassendi, Pierre, De motu impresso a motore translato epistulae duae, 1642
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              puſillus, tametſi vnâ vnciâ ponderoſior non ſit, non
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              minore velocitate, quàm ingens, tametſi ſit cen­
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              tum, & plurium librarum. </s>
              <s id="id.000529">Videlicet pluribus qui­
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              dem chordulis attrahitur ingens, ſed plureis etiam par­
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              ticulas attrahendas habet; adeò vt fiat commenſura­
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              tio inter vim, ac molem, & ex vtraque vtrobique
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              tantum ſit, quantum ad motum ſufficit eodem tem­
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              pore peragendum. </s>
              <s id="id.000530">Id permirum; ſi globi fuerint ex
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              diuerſa materia, vt alter plumbeus, alter ligneus,
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              vix quicquam tardiùs attingi Terram ab vno, quàm
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              ab alio, hoc eſt à ligneo, quàm à plumbeo; quo­
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              niam pari modo fit commenſuratio, dum totidem
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              particulis totidem chordulæ deſtinantur. </s>
              <s id="id.000531">Et eſt nihil­
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              ominùs tantillum, tametſi prope modùm inſenſibile
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              diſcrimen; quòd ob raritatem materiæ majorem,
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              aër ſe non-nihil magis intermiſceat, non nihilque
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              magis ad motum deorsùm reſiſtat. </s>
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              <s id="id.000532">XVI. </s>
              <s id="id.000533">Quæres obiter, quid-nam eueniret illi lapi­
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              di, quem aſſumpſi concipi poſſe in ſpatiis illis inani­
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              bus, ſi à quiete exturbatus aliqua vi impelleretur?
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              <s id="id.000534">Reſpondeo probabile eſſe, fore, vt æquabiliter, in­
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              deſinenter que moueretur; & lentè quidem, celeriter­
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              ve, proüt ſemel paruus, aut magnus impreſſus foret
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              impetus. </s>
              <s id="id.000535">Argumentum verò deſumo ex æquabilita­
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              te illa motus horizontalis iam expoſita; cùm ille vi­
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              deatur aliunde non deſinere, niſi ex admiſtione mo­
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              tus perpendicularis; adeò vt, quia in illis ſpatiis nul­
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              la eſſet perpendicularis admiſtio, in quamcúmque
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              partem foret motus inceptus, horizontalis inſtar eſ­
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              ſet, & neque acceleraretur, retardareturve, neque </s>
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