Stevin, Simon, Mathematicorum hypomnematum... : T. 4: De Statica : cum appendice et additamentis, 1605

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          <pb o="173" file="527.01.173" n="173" rhead="*DE* T*ROCHLEOSTATICA*."/>
          <p>
            <s xml:id="echoid-s4901" xml:space="preserve">Similiter cum tribus orbiculis fanis ductorius obvolvetur, ſingulis partibus
              <lb/>
            cedet ponderis B pars quarta, ideoq́ue F manus feret partem quartam pon-
              <lb/>
              <figure xlink:label="fig-527.01.173-01" xlink:href="fig-527.01.173-01a" number="231">
                <image file="527.01.173-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/527.01.173-01"/>
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            deris B. </s>
            <s xml:id="echoid-s4902" xml:space="preserve">Vnde ſimili proceſſu generale axioma ponderum pluribus etiam
              <lb/>
            trochleis tractorum inſtitui & </s>
            <s xml:id="echoid-s4903" xml:space="preserve">efformari poteſt.</s>
            <s xml:id="echoid-s4904" xml:space="preserve"/>
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          <p>
            <s xml:id="echoid-s4905" xml:space="preserve">Advertendum autem rariſſimè F hoc modo ſurſum duci, quod nos in tribus
              <lb/>
            expoſitis diagrammatis clarioris demonſtrationis gratia fecimus, ſed plerumq;
              <lb/>
            </s>
            <s xml:id="echoid-s4906" xml:space="preserve">additur inſuper orbiculus unus, ut per ejus ambitum ductus funis deorſum tra-
              <lb/>
            hatur, ut quarto hoc diagrammate ſpectandum exhibemus. </s>
            <s xml:id="echoid-s4907" xml:space="preserve">notandum tamen
              <lb/>
            quartum iſtum adventitium orbiculum manui nullam ponderis allevationem
              <lb/>
            mutationem vé in ducere; </s>
            <s xml:id="echoid-s4908" xml:space="preserve">quia pondus B è quatuor tantùm funibus, perinde
              <lb/>
            atque in tertiâ diagraphâ ſuſtinetur; </s>
            <s xml:id="echoid-s4909" xml:space="preserve">nam noviſſimus iſte funis qui quintus vi-
              <lb/>
            deri poſſet, ipſe unus idemq́ue eſt cum quarto. </s>
            <s xml:id="echoid-s4910" xml:space="preserve">Ex quo intelligitur etiamſi fu-
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            nis ductorius per centum iſtiuſmodi trochleas traducatur, trahentem planè ni-
              <lb/>
            hil juvari.</s>
            <s xml:id="echoid-s4911" xml:space="preserve"/>
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          <p>
            <s xml:id="echoid-s4912" xml:space="preserve">Verumenimverò ſi hujus mechanicam veritatem deſideres, in F loco ma-
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            nus, quartâ hâc figurâ ſubſtituito pondus æquale quartæ parti ponderis attol-
              <lb/>
            lendi, & </s>
            <s xml:id="echoid-s4913" xml:space="preserve">hæc (ſi opus rite inſtitutum ſit) inter ſe ſitu erunt æquilibria. </s>
            <s xml:id="echoid-s4914" xml:space="preserve">pondus
              <lb/>
            autem tollendum, ut accuratè definiatur, notato id hic conſtitui à dato ponde-
              <lb/>
            re B, trochleâ imâ A, atque inſuper a gravitate funis. </s>
            <s xml:id="echoid-s4915" xml:space="preserve">atqui ut funis </s>
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