DelMonte, Guidubaldo, Le mechaniche

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          <chap id="N14EBE">
            <pb xlink:href="037/01/190.jpg"/>
            <p id="id.2.1.1017.0.0" type="head">
              <s id="id.2.1.1017.1.0">PROPOSITIONE XXI. </s>
            </p>
            <p id="id.2.1.1018.0.0" type="main">
              <s id="id.2.1.1018.1.0">Se à tre girelle di due taglie, l vna delle quali ſia ſoſtenuta dalla
                <lb/>
              poſſanza di ſopra con vna ſola girella, & l'altra con due girel­
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              le ſia poſta di ſotto, & legata al peſo, ſarà inuolta d'intorno
                <lb/>
              la corda, con l'vno de' ſuoi capi legato in qualche luogo, &
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              l'altro legato nella taglia di ſopra; il peſo ſarà vna volta, & vn
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              terzo tanto quanto la poſſanza. </s>
            </p>
            <p id="id.2.1.1019.0.0" type="main">
              <s id="id.2.1.1019.1.0">
                <emph type="italics"/>
              Sia il peſo A legato alla taglia di
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              ſotto, laquale habbia due girelle, i
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              cui centri ſiano BC, & la taglia
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              di ſopra habbia la girella co'l centro
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              D; & ſia la corda EFGHKL
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              MN riuolta d'intorno à tutte le gi­
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              relle, laquale ſia legata in N, &
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              in E dalla taglia di ſopra; & ſia
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              la poſſanza in O, che ſoſtenga il pe
                <lb/>
              ſo A. </s>
              <s id="id.2.1.1019.2.0">Dico che il peſo è vna volta
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              & vn terzo tanto quanto è la poſſan
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              za. </s>
              <s id="id.2.1.1019.3.0">Et percioche ciaſcheduna delle
                <emph.end type="italics"/>
                <lb/>
                <arrow.to.target n="note258"/>
                <emph type="italics"/>
              corde NM HG EF KL ſoſtie­
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              ne la quarta parte del peſo A; &
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              tutte inſieme ſoſtengono tutto il pe­
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              ſo; le tre HG EF KL inſieme
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              ſoſterranno le tre parti del peſo A.
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              </s>
              <s id="id.2.1.1019.4.0">Per laqual coſa il peſo A verſo tut
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              te queſte inſieme ſarà come quattro
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              à tre: & concioſia che la poſſanza di
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              O faccia il medeſimo, che ſanno le
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              corde HG EF KL tutte inſie­
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              me; peroche le ſoſtiene tutte; ſarà la
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              poſſanza di O eguale à le tre HG
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              EF KL inſieme; & perciò il peſo
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              A verſo la poſſanza di O ſarà co­
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              me quattro à tre, cioè vna volta, &
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              vn terzo. </s>
              <s id="id.2.1.1019.5.0">che biſognaua moſtrare.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="id.2.1.1020.0.0" type="margin">
              <s id="id.2.1.1020.1.0">
                <margin.target id="note258"/>
                <emph type="italics"/>
              Per il
                <emph.end type="italics"/>
              1.
                <emph type="italics"/>
              corolario della
                <emph.end type="italics"/>
              V.
                <emph type="italics"/>
              di queſto.
                <emph.end type="italics"/>
              </s>
            </p>
            <figure id="id.037.01.190.1.jpg" xlink:href="037/01/190/1.jpg" number="176"/>
          </chap>
        </body>
      </text>
    </archimedes>