Galilei, Galileo, Les méchaniques, 1634

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s id="s.000239">
                <pb pagenum="50" xlink:href="047/01/070.jpg"/>
              leurs plans. </s>
              <s id="s.000240">Ce que Pappus
                <expan abbr="Alexãdrin">Alexandrin</expan>
                <lb/>
              s'eſt efforcé de monſtrer dans le 8. liure
                <lb/>
              de ſes Collections Mathematiques,
                <lb/>
              mais il s'eſt trompé, à mon aduis, en ce
                <lb/>
              qu'il a ſupposé vne force donnée pour
                <lb/>
              mouuoir le poids ſur le plan
                <expan abbr="horizõtal">horizontal</expan>
              ,
                <lb/>
              ce qui eſt faux, parce qu'il ne faut nulle
                <lb/>
              force ſenſible, ſi l'on oſte les empeſche­
                <lb/>
              mens exterieurs. </s>
              <s id="s.000241">C'eſt pourquoy il eſt
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              plus à propos de chercher la force qui
                <lb/>
              meut le fardeau ſur le plan vertical ou
                <lb/>
              perpendiculaire AF, laquelle eſt tou­
                <lb/>
              ſiours égale à la peſanteur du fardeau,
                <lb/>
              que de chercher la force qui le meut
                <lb/>
              ſur le plan horizontal. </s>
            </p>
            <p type="main">
              <s id="s.000242">Soit donc le cercle AIC, dont le dia­
                <lb/>
                <figure id="id.047.01.070.1.jpg" xlink:href="047/01/070/1.jpg"/>
                <lb/>
              mettre
                <lb/>
              eſt ABC,
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              & le cen­
                <lb/>
              tre B; &
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              qu'il y ait
                <lb/>
              deux for­
                <lb/>
              ces éga­
                <lb/>
              les aux
                <lb/>
              points A
                <lb/>
              & C, qui
                <lb/>
                <expan abbr="repreſẽtẽt">repreſentent</expan>
                <lb/>
              vne
                <expan abbr="balãce">balance</expan>
              mobile autour du centre B, </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>