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

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              motu, accelerari pergat ab I, in L, ſed per parteis in­
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              tegri diei: quæſo, dices ne huiuſmodi accelerationem
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              eſſe vn formem? </s>
              <s id="s.000879">Et ecce ea tamen futura eſt continens;
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              ac ipſi gradus velocitatis repræſentati iuxta te paralle­
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              lis ED, GF, IH, LK, cum interceptis omnibus, ha­
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              bituri ſunt inter ſe, eandem rationem, quam ipſæ par­
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              tes ſpati, repræ entatæ iuxta te partibus lineæ AC.
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              </s>
              <s id="s.000880">Quòd ſi id reputes abſurdum; abſurdum quoque vi­
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              deri debet metiri accelerationem, ac vniformem po­
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              tiſſimùm, penes ſpatium, non penes tempus: atque
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              idcircò lineam AC comparatam ad eas parallelas pro
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              velocitatibus habitas, non pro tempore, ſed pro ſpatio
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              habere. </s>
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            <p type="main">
              <s id="s.000881">Enim verò, vt expreſſiùs dicam quamobrem lineæ
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              DE, FG, & parallelæ cæteræ accipi non poſſint pro
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              gradibus velocitatis, ſi partes lineæ AC accipiantur pro
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              ſpatij, non pro temporis partibus, ac ſimul inſinuem
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              quid diſcriminis circa repræſentationem per eandem
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              figuram, inter vtramque hypotheſin ſit, rem ecce
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              paucis ita deduco. </s>
              <s id="s.000882">Si DE ſit velocitatis gradus, qui per
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              additamenta continua à puncto A ſecundum trian­
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              gulum ADC, acquiſitus ſit, dum mobile AE percur­
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              rit; quæro quî euadat hic gradus, vbi deinceps mobi­
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              le pergendo decurrit EG? </s>
              <s id="s.000883">An peniſſe illum dicemus?
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              </s>
              <s id="s.000884">Non ſane: quoniam alioquin mobili perueniente ex
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              A in G non reperiretur acquiſitus in G, niſi vnus velo­
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              citatis gradus; quatenus etiam per te, ſeu ex vulgari de­
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              finitione, additamenta ex E in G æqualia ſunt addita­
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              mentis ex A in E, nec poteſt proinde ab vſque E ac­
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              quiſitus eſſe, niſi gradus vnus, v. c. FP æqualis ipſi DE </s>
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