Gassendi, Pierre, De proportione qua gravia decidentia accelerantur, 1646

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            <p type="main">
              <s id="s.000849">
                <pb pagenum="96" xlink:href="028/01/136.jpg"/>
                <emph type="italics"/>
              globi eſt (quantumque eſt, ſatis vt cum globo in altera lance
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              per aërem libera impoſito æquilibrium faciat) globus dein­
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              ceps dimittatur in ipſam lancem liberam: fore, vt dimiſſus
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              ex ſuæ vnius diametri altitudine globus attollat ſuo impetu
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              non modò lancem ſuſtentatam cum æqualibrij pondere, ſed
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              vnum pondus prætereà, ſuo itidem ponderi æquale, præcisè:
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              & dimiſſus ex duarum diametrorum altitudine, duo attollat
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              pondera, hoc eſt duplum ſui ponderis præcisè, & ex trium
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              altitudine, treis, ſeu triplum, &c.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s id="s.000850">
                <emph type="italics"/>
              Igitur, cùm tanta ſit velocitas cuiuſque rei, quantus impe­
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              tus, imò impetus velocitas ſit; habent ſe velocitates in motu
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              accelerato grauium decidentium acquiſitæ vt emenſa ſpa­
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              tia.
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              </s>
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            <p type="main">
              <s id="s.000851">Confirmatur Aſſumptio aduerſus Galileum. </s>
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            <p type="main">
              <s id="s.000852">
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              Quia
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              G
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              alileus falsò definit motum æquabiliter accelera­
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              tum illum, qui à quiete recedens æqualibus temporibus æqua­
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              lia celeritatis momenta acquirit; & paralogiſticè probat mo­
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              tum æquabiliter acceleratum non eſſe eum, qui æqualibus ſpa­
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              tiis æqualia celeritatis augmenta acquirit (quandò id arguit
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              ex eo, quod totum, & pars eodem, aut æquali tempore per­
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              currerentur: cùm tamen conſtet dimidium tempore breuiore
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              percurri, quàm duplum) ac tum gratis ſibi poſtulat concedi
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              gradus velocitatis eiuſdem mobilis ſuper diuerſas planorum
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              inclinationes acquiſitos tunc eſſe æqualeis, cùm eorumdem pla­
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              norum eleuationes ponuntur æquales: tum ad id probandum
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              falsò aſſumit globum filo nunc longiore, nunc breuiore ſuſpen­
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              ſum, & ex eadem altitudine per inæqualeis arcus vibratum,
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              aſſurgere ſemper ad eandem altitudinem.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s id="s.000853">Ac talis quidem formari poteſt, vt mihi videtur,
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              tua Demonſtratio, quantum, vt dixi, elicitur ex operis </s>
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        </body>
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