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

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s id="id.000783">
                <pb pagenum="116" xlink:href="027/01/115.jpg"/>
              in ſuæ nutricis gremium, petere prætereà eius inte­
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              ranea. </s>
              <s id="id.000784">Ex accidenti verò eſt, quòd dirigantur ſi­
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              mùl in centrum, quatenus tendentes in Terram per
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              breuiſſimam lineam, contingit hanc lineam, ſi pro­
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              ducta intelligatur, tranſire per centrum; vti ex acci­
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              denti eſt, quòd dum ego heinc contendo Pariſios,
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              Caletum verſus dirigar, de quo tamen non cogito,
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              quatenùs eadem via eſt, quæ continüata perducit
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              Caletum. </s>
              <s id="id.000785">Non repeto porrô quæ ſunt circa attra­
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              ctionem deducta; elicio ſolum grauitatem, quæ eſt
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              in ipſis partibus Terræ, terreniſve corporibus, non
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              tam eſſe vim inſitam, quàm ex attractu Terræ im­
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              preſſam; idque poſſe intelligi adjuncto exemplo ip­
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              ſius magnetis. </s>
              <s id="id.000786">Accipito enim, & contineto manu la­
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              minulam ferri paucarum vnciarum. </s>
              <s id="id.000787">Si ſupponatur
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              deinde manui magnes aliquis robuſtiſſimus, expe­
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              riere pondus non iam vnciarum, ſed librarum aliquot
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              eſſe. </s>
              <s id="id.000788">Et quia fatebere hoc pondus non tam eſſe inſi­
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              tum ferro, quàm impreſſum ex attractione magne­
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              tis manui ſuppoſiti; idcircô vbi agitur de pondere
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              ſeu grauitate lapidis, alteriuſve corporis terreni, in­
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              telligi poteſt ea grauitas non tam conuenire huiuſ­
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              modi corpori ex ſe, quàm ex attractione ſuppoſitæ
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              Terræ. </s>
              <s id="id.000789">Quippe & finge quoties ferrum manu ſu­
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              ſtentaſti fuiſſe magnetem ſuppoſitum, quod ſuppo­
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              ſitum tamen ignorares, crederes omninô eiuſmodi
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              pondus eſſe inſitum ipſi ferro, quod eſſet tamen at­
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              tractitium: quid ni igitur idem poſſis de lapide
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              credere, quòd illum nunquam ſuſtentâtis ſine Terra
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              ſuppoſita, quam neſcieris eſſe magnetem ingentem? </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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