Stelliola, Niccol� Antonio, De gli elementi mechanici, 1597

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      <text>
        <body>
          <chap id="N10A15">
            <p id="N10A33" type="main">
              <s id="N10A35">
                <pb xlink:href="041/01/035.jpg" pagenum="34"/>
                <emph type="italics"/>
              conferenze li ponti, oue eſſendo dette grauezze, facciano equipondio. </s>
              <lb/>
              <s id="N10A52">Diuidaſi la B C interuallo de centri, ſiche qual ragione ha la grauezza,
                <lb/>
              B, alla C, tal habbia la linea C D alla, D B: e tiriſi A D: e tirata
                <lb/>
              per A, la A E B perpendicolare all'Orizonte, facciaſi all'angolo D A
                <lb/>
              B, vguale lo E A G: & allo D A C, vguale E A H: dico che'l ponto
                <lb/>
              G, è oue portato il B, & H, oue portato il C, fanno equipondio. </s>
              <s id="N10A5C">E prima
                <lb/>
              che portato il B in G, venga il C in H, è manifeſto: percioche l'ango
                <lb/>
              B A C è vguale al G A H: e per l'iſteſſa ragione, è manifeſto che nell'
                <lb/>
              iſteſſo tempo il ponto D, ſia nella A E. </s>
              <s id="N10A64">ma il
                <expan abbr="põto">ponto</expan>
              D è il centro commu­
                <lb/>
              ne di peſo di dette due grauezze. </s>
              <s id="N10A6C">E dunque il centro commune nel
                <lb/>
              la perpendicolare del ſoſtenimento: e perciò le grauezze ſtanno. </s>
              <s id="N10A70">Jl che
                <lb/>
              ſi cercaua.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="N10A76" type="head">
              <s id="N10A78">
                <emph type="italics"/>
              Appendice. </s>
              <s id="N10A7C">I.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="N10A80" type="main">
              <s id="N10A82">Et è manifeſto che nelli due ponti, oppoſti alli ritroua
                <lb/>
              ti, facciano equipondio: & non altroue: percioche in o­
                <lb/>
              gni altra poſitura oltre di dette due, il centro commune
                <lb/>
              e fuori del perpendicolo. </s>
            </p>
            <p id="N10A8A" type="head">
              <s id="N10A8C">
                <emph type="italics"/>
              Appendice. </s>
              <s id="N10A90">II.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="N10A94" type="main">
              <s id="N10A96">Et è manifeſto che nell'arco ſotto il ponto dell'equi
                <lb/>
              pondio la grauezza ha momento maggiore: e nell'arco
                <lb/>
              ſopra il ponto dell'equipondio ha momento minore. </s>
            </p>
          </chap>
          <chap id="N10A9C">
            <p id="N10A9D" type="head">
              <s id="N10A9F">
                <emph type="italics"/>
              PROPOSITIONE.
                <emph.end type="italics"/>
                <lb/>
              I. </s>
            </p>
            <p id="N10AA7" type="main">
              <s id="N10AA9">Dàte qual ſi uoglia due grauezze nelli dati raggi, che
                <lb/>
              fanno dato angolo: ritrouar nelle loro circolationi, pon­</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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