Fabri, Honoré, Tractatus physicus de motu locali, 1646

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    <archimedes>
      <text>
        <front>
          <section>
            <p id="N109B9" type="main">
              <s id="N109CB">
                <pb xlink:href="026/01/019.jpg"/>
              porrò in deſcenſu eſt motus mixtus ex accelerato naturali,
                <lb/>
              & retardato violento, vt conſtat ex dictis: </s>
              <s id="N109D7">iactus per incli­
                <lb/>
              natam ad angulum 45. eſt omnium maximus, ratione eiuſdem
                <lb/>
              plani horizontalis: clara eſt experientia. </s>
              <s id="N109DF">Ratio eſt: </s>
              <s id="N109E2">quia per verti­
                <lb/>
              calem ſurſum, nihil acquiritur in plano horizontali, ex quo fit ia­
                <lb/>
              ctus; </s>
              <s id="N109EA">nihil etiam per ipſam horizontalem; igitur plùs acquiritur per
                <lb/>
              illam, quæ maximè ab vtraque ſimul recedit. </s>
            </p>
            <p id="N109F0" type="main">
              <s id="N109F2">9. Hæc ratio eſt verè phyſica, geometrica nulla eſt: hinc illi
                <lb/>
              iactus æquale ſpatium acquirunt in prædicto plano horizontali,
                <lb/>
              qui fiunt per inclinatas æqualiter à prædicta inclinata ad ang. 45.
                <lb/>
              diſtantes. </s>
              <s id="N109FC">Cùm emittitur mobile per inclinatum deorſum, in libero
                <lb/>
              medio, mouetur motu mixto ex naturali accelerato, & impreſ­
                <lb/>
              ſo retardato, vt conſtat ex dictis; </s>
              <s id="N10A04">ille autem primus accelera­
                <lb/>
              tur per acceſſionem impetus perfectionis quàm in iactu per ho­
                <lb/>
              rizontalem; </s>
              <s id="N10A0C">ſed imperfectionis, quàm in perpendiculo: </s>
              <s id="N10A10">retarda­
                <lb/>
              tur verò impetus minùs, quàm in iactu per horizontalem; plùs ve­
                <lb/>
              rò, quàm in iactu per ipſum perpendiculum, in quo nihil impetus
                <lb/>
              deſtruitur. </s>
            </p>
            <p id="N10A1A" type="main">
              <s id="N10A1C">10. Cùm è naui mobili ſurſum mittitur corpus graue, eſt motus
                <lb/>
              mixtus ex tribus, in aſcenſu, ſcilicet, ex naturali æquabili, ex verti­
                <lb/>
              cali retardato, & horizontali æquabili: </s>
              <s id="N10A24">mouetur ſurſum per cur­
                <lb/>
              uam, ſempérque capiti iaculatoris imminet; </s>
              <s id="N10A2A">quippe tantùm acqui­
                <lb/>
              rit in horizontali, quantùm nauis: </s>
              <s id="N10A30">in deſcenſu verò eſt motus
                <expan abbr="mix­">mixtus</expan>
                <lb/>
              ex horizontali retardato, & naturali accelerato: </s>
              <s id="N10A3A">quia tamen bre­
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              uiſſimo illo tempore, retardatio illa horizontalis non eſt ſenſibilis,
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              ferè in ipſius iaculatoris caput deſcendit; quod certè phænomenon
                <lb/>
              ex noſtris principiis euincitur. </s>
            </p>
            <p id="N10A44" type="main">
              <s id="N10A46">11. Parum cautè Vfanus vniuerſim aſſerit, iaculationem pilæ ex
                <lb/>
              tormento, maiorem eſſe ex naui in continentem, & minorem vi­
                <lb/>
              ciſſim, cùm vtriuſque differentia peti poſſit, vel à puluere tormen­
                <lb/>
              tario, vel ab eius compreſſione, vel humiditate, vel tormenti fabri­
                <lb/>
              ca, vel ipſius demum nauigij motu, qui pilæ motum, vel accelerat, ſi
                <lb/>
              versùs eandem partem eſt, vel retardat è contrario: in plano ho­
                <lb/>
              rizontali duro poteſt eſſe motus mixtus ex duobus, tribus, qua­
                <lb/>
              tuor, & pluribus aliis. </s>
            </p>
            <p id="N10A58" type="main">
              <s id="N10A5A">12. Cùm è naui mobili emittitur ſagitta per horizontalem, quæ fa­
                <lb/>
              cit angelum rectum cum linea directionis nauis, fertur quaſi per dia­
                <lb/>
              gonalem vtriuſque, ſaltem per aliquod ſpatium: </s>
              <s id="N10A62">cùm verò emitti-</s>
            </p>
          </section>
        </front>
      </text>
    </archimedes>
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