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

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              <s id="s.000047">ART. XIX. XX. XXI. XXII. </s>
              <s id="s.000048">De
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              Experimento circa ictum, impetumve grauium
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              cadentium, ad explorandum impetuſ-ne, vt
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              ſpatium increſcat. </s>
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              Tametſi conſtet grauia, quò ex altiore decidunt loco, eò
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              maiore impetu eſſe, vehementiuſque percutere, ac tantam eſſe
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              velocitatem, quantus impetus, & percußio est: non ideò tamen
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              conſtat vllis (qualia R. P. dicit in quolibet graui clara, facilia,
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              indubitata) experimentis, graue decidens ex altitudine duplæ
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              duplò fortiùs percutere, triplò ex tripla, quadruplò ex quadru­
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              pla, &c. </s>
              <s id="s.000050">Quin-etiam ſunt Experimenta, quæ impetum, per­
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              cußionemque non eſſe duplò maiorem inſinuant, niſi ex altitu­
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              dine quadrupla; triplò, niſi ex nonupla; quadruplò, niſi ex ſe­
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              decupla. </s>
              <s id="s.000051">Huiuſcemodi ſunt illa de Aqua cylindrico vaſe con­
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              tenta; cuius duplum non exſilit tempore æquali, niſi altitudo
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              quadrupla ſit; nec triplum, niſi nonupla; quadruplum, niſi ſe­
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              decupla: & de Chorda tenſa, cuius vibratæ itus, redituſque
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              dupli non ſunt, niſi quadruplo pondere tendatur; tripli, niſi
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              nonuplo; quadrupli, niſi ſedecuplo: ac rursùs de Penſilibus,
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              quorum vibrationes ad perpendiculum peruenientes non acqui­
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              runt impetum duplum, niſi altitudo deſcenſus ſit quadrupla,
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              triplum, niſi nonupla, quadruplum, niſi ſedecupla, &c.
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              A p. </s>
              <s id="s.000052">32. in 41. </s>
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            <p type="main">
              <s id="s.000053">ART. XXIII. XXIV. XXV. XXVI. XXVII.
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              XXVIII. </s>
              <s id="s.000054">De Experimento in Bilance facto, ac
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              aliud reuerâ probante, quàm velocitates eſſe
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              ſicut ſpatia. </s>
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            <p type="main">
              <s id="s.000055">
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              Fuere omnia Experimenta R. P. ad vnum redacta, vt
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              </s>
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