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

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      <text>
        <body>
          <chap>
            <p type="main">
              <s id="id.000244">
                <pb pagenum="11" xlink:href="027/01/018.jpg"/>
              peruidebis eorum, de quibus ad Luillerium ſcripſe­
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              ram, experimentorum. </s>
              <s id="id.000245">Ea ſanè ſunt, quæ ipſe quo­
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              que maxima ex parte peragere facillimè poſſis. </s>
              <s id="id.000246">Vi­
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              delicet, cùm aliquando curru extra vrbem vehèris,
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              manum extra currum protende, & auriga juſſo in­
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              ſtigare equos, laxaréque habenas, proijce pilam di­
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              rectè ſurſum quantacúmque voles, aut poteris vi; &
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              illa haud-dubiè recidet in manum. </s>
              <s id="id.000247">Cur recidat au­
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              tem, tibi explicabit, ſi quem juſſeris extra currum,
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              ac in via conſiſtere è regione tui, dum proijcies pi­
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              lam. </s>
              <s id="id.000248">Ille enim videbit pilam non directè ſurſum ten­
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              dere, neque ad perpendiculum deinceps recidere;
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              ſed videbit illam tendere obliquè, & quaſi arcum,
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              ſeu lineam curuam in aëre deſcribere, cuius vnum
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              extremum ſit qua parte pilam proijcies, alterum qua
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              recipies pilam. </s>
              <s id="id.000249">Quod autem tibi ipſi pila videatur
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              ſemper directè ſursùm, & ſecundum idem perpen­
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              diculum imminens; cauſa eſt, quia quantùm illa an­
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              trorsùm procedit, deflexum iter peragens, tantun­
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              dem tu quoque antrorsùm proueheris, adeò vt illi
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              ſemper ſubijciaris, ipſaque eſſe ſemper appareat in
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              eodem perpendiculo. </s>
              <s id="id.000250">Cauſa verò cur motus pilæ à
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              rectitudine deflectatur, & curuam ſequatur, deſcri­
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              batve lineam, illius compoſitio eſt, quatenus ex
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              duplici vi motrice originem habet. </s>
              <s id="id.000251">Nam ſi pila non
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              projecta ſursùm detineretur ſolùm in manu, pro­
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              moueretur ſolùm antrorsùm, videlicet ad motum
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              currus, ac lineam rectam deſcriberet: ſi verò quieſ­
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              cente curru proijceretur directè ſursùm, tunc non­
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              niſi ſursùm, deorsùmque moueretur, ac rectam rur-</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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