Borelli, Giovanni Alfonso, De motionibus naturalibus a gravitate pendentibus, 1670

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              <s id="s.002209">
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              tatis defectu prouenire, neque ſolida huius aſſertionis ratio
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              afferri potest.
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              Cap. 10. de
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              æquitempo­
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              ranea natu­
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              rali veloci­
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              tate
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              .</s>
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            <p type="margin">
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              IV.</s>
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              Quia facilius à grauiori corpore vinci poteſt medij
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                tia</expan>
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              , ait,
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              fore vt celerior ille grauioris corporis
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              à ma­
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              iori eiuſdem grauitate oriatur.
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              V.</s>
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              <s id="s.002215">Tandem Ariſtotelis argumentum validiſſimum eſ­
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              ſe probat,
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              nam cùm grauitas in certa aliqua proportione
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              reſistentiam medij ſuperet, ſequitur proportiones inter gra­
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              uitatem, & medium abſque fine multiplicari poſſe, quare ſi
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              ſupponatur corpus aliquod per ſpatium imaginarium in cer­
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              to velocitatis gradu, impellente grauitate deſcendere, pote­
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              rit vtique dari corpus, cui talis ſit reſpectu medij realis pro­
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              portio, vt pari illud velocitate tranſcurrat: infinita
                <expan abbr="tamẽ">tamen</expan>
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              erit diſtantia inter reſistentiam medij realis huic corpori col­
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              lati, & reſiſtentiam ſpatij imaginarij comparati cum al­
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              tero, quod ille æquali in eo velocitate moueri ſupponitur. </s>
              <s id="s.002216">Id
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              verò abſurdisſimum eſſe quilibet ſtatim pronunciabit.
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              VI.</s>
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              Verſa igitur argumenti formula: quia reſiſtentia medij
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              grauitatem non nihil retardat celeriùſque fertur graue vbi
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              minùs illi reſistitur, cùm nulla ſit inter medium
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              (plenum̨
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              ſupple)
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              ſpatiumque vacuum proportio, ſequetur neceſſa­
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              riò neque vllam fore inter tempus in quo corpus graue de­
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              terminatam medij quantitatem emetitur; & tempus in
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              quo tantumdem ſpatij vacui tranſcurrit, quare ſpatium il­
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              lud vacuum in momento conficiet.
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              Reſponde­
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              tur primæ
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              difficultati
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              ex ſuperiùs
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              adductis.</s>
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            <p type="main">
              <s id="s.002222">Ad primam ergo difficultatem reſpondeo breui­
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              tèr verum non eſſe quod effectus maioris velocitatis
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              dependeat tamquàm à cauſa efficiente à virtute ma­
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              ioris grauitatis in ipſo actu deſcenſus. </s>
              <s id="s.002223">Quia vt oſten-</s>
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