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

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      <text>
        <body>
          <chap>
            <p type="main">
              <s id="id.000255">
                <pb pagenum="13" xlink:href="027/01/020.jpg"/>
              tum grauitatis, quo pila ſponte fertur deorsùm, fe­
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              ratur etiam antrorsùm eodem motu, quo ipſe currus;
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              & quia tuus oculus intereà tantundem quoque an­
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              trorsùm fertur, inde fit, vt pila continuò ipſi ſub­
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              jecta oculo, perpendiculariter moueri videatur. </s>
              <s id="id.000256">Lo­
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              co verò pilæ vſurpa lapillos; & curru nunc lentè,
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              nunc concitatè, & quomodocúmque voles, feratur,
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              idem ſemper videbitur. </s>
              <s id="id.000257">Proijce poſteà pilam antror­
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              sùm; illa tantundem à te diſcedet, tamque procùl à
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              te in terram cadet, ac ſi ipſe quieſceres, eodem mo­
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              do, & eadem ex cauſa, quam de pila projecta intra
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              pergulam dixi. </s>
              <s id="id.000258">Diſcrimen eſt ſolum, quòd corpus,
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              cui cohæret manus, intra pergulam moueatur per ſe;
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              in via moueatur à curru. </s>
              <s id="id.000259">Nec ſpera, vt manus pilam
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              aſſequatur, projectam licet remiſſa vi: Nam ſi alius
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              quidem extra currum quieſcens eadem vi proijceret,
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              poſſes aſſequi, obimpreſſam ſolùm propriam eius vim;
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              at dum tu proijcis, præter vim propriam, imprimis
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              etiam vim currus, cauſam videlicet majoris illius ve­
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              locitatis, ob quam pilate ſemper tantum ſugit, quan­
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              tum eam ipſe proſequeris. </s>
              <s id="id.000260">Proijce deinde retrorsùm;
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              & eadem, eodemque modo, ac ob eaſdem cauſas
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              euenient, quas diximus antè, circa projectionem in­
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              tra pergulam. </s>
              <s id="id.000261">Proijce denique in latus, & ad rectum
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              quidem cum latere currus angulum: Proijce etiam
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              ad obliquum, & ad quemcúmque volueris; abeun­
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              tem ſemper pilam videbis per lineam, quæ ad finem
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              vſque, eundem ſeu rectum, ſeu obliquum cum latere
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              currus angulum conſtituat. </s>
              <s id="id.000262">Illud autem erit obſerua­
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              tu jucundum, quòd, ſi ad lapidem, arborem, aliquid-</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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