Gassendi, Pierre, De motu impresso a motore translato epistulae duae, 1642

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            <p type="main">
              <s id="id.000413">
                <pb pagenum="43" xlink:href="027/01/050.jpg"/>
              & parem vim faciens, impetum victorem continuò
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              imprimat, nouúmque ſemper adiiciat; adeò vt in ſine
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              motus deorsùm, tantundem ſit impetus ab aere,
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              quantùm initio motus ſurſùm, impreſſum fuerat ab
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              ipſa manu. </s>
              <s id="id.000414">Et quæſo te, ſi aliquis lapidem ſurſùm ex
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              fundo maris pari vi, qua aliùs ex imo aere projiciat;
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              quare lapis nec tam altum aſcendet, neque ex
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              am diſ­
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              ſito loco deorſùm redibit? </s>
              <s id="id.000415">An-non quia aqua lapidi
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              magis reſiſtet, quàm aer, impreſſumque impetum &
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              vehementiùs franget, & expugnabit citiùs, ac dein­
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              ceps lapidi ſemper imminens, proprium impetum im­
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              primere perget, nec finem faciet addendi nouum,
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              donec in fundum reduxerit? </s>
              <s id="id.000416">Diſcrimen certè ſolum­
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              modò eſt ſecundum majorem, minoremque reſiſten­
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              tiam; cùm aërem quoque non nihil reſiſtere argua­
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              tur, vel ex eo ſtridore, quem edit, dum à corporibus
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              vehementiùs per ipſum actis frangitur. </s>
              <s id="id.000417">Et quamuis
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              præ ſua tenuïtate non videatur poſſe impetui tanto re­
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              ſiſtere; cogita tamen proportionem eſſe cum aquæ
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              reſiſtentia; illamque vt intelligas, compara non
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              modò perexiguum, ac penè nullum lapidis aſcenſum
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              ex fundo aquæ, cum incomparabiliter altiore ex
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              imo aëre; ſed etiam progreſſum penè inſenſibilem
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              bombardici globi per aquam tranſuerſùm adacti,
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              reſpectu illius, qui per aërem fieri obſeruatur; &
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              agnoſces, vt intra aquam propter maximam reſiſten­
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              tiam, paruum ſpatium peragitur; ſic in aëre propter
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              paruam, ſpatium maximum peragi. </s>
              <s id="id.000418">Dices dubium
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              fortè non eſſede reſiſtentia aëris, dum aliquid agitur
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              ſursùm; ſed de impetu, qui imprimatur ab aëre, </s>
            </p>
          </chap>
        </body>
      </text>
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