Baliani, Giovanni Battista, De motu naturali gravium solidorum, 1638

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              <s id="s.000325">POSTULATUM VII
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              <s id="s.000326">Ductis planis inclinatis, & linea perpendiculari in-
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              ter binas paralellas orizontales, Gravia super illis
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              mota ubi perveniunt ad paralellam inferiorem ha-
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              bent aequales velocitatis gradus; & proinde si ab inde
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              infra sortiantur parem inclinationem, aequeveloci-
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              ter moventur.
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              <s id="s.000327">Videtur probabile. </s>
              <s id="s.000328">Primo quia si diuturnitates sunt longitu-
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              dinibus proportionales, ut propositione 22. huius probatum
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              fuit, credibile est motus in fine esse aequales.
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              <s id="s.000329">Secundo. Argumento ducto ab experientia pendulorum, quae
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              quantumvis longiora, aut breviora, & proinde circa fi-
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              nem magis, aut minus inclinata, pariter ascendunt, si pa-
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              riter descendant.
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              <s id="s.000330">Tertio. Quia videmus aquam per siphones rectos, sive obli-
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              quos, seu inclinatos ductam, pariter ascendere, si pariter
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              descendat. </s>
              <s id="s.000331">Ceterum fateor minorem evidentiam hoc po-
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              stulatum caeteris praemissis prae se ferre, quae fuit causa quod
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              illud, ut in praefatione, segregaverim, & sequentia, alia
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              methodo, tangendo fere tantummodo exposuerim, & a
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              pluribus aliis propositionibus, quae hinc deduci facile pos-
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              sent, data opera abstinuerim. </s>
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