DelMonte, Guidubaldo, Mechanicorvm Liber

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          <chap id="N128CF">
            <pb xlink:href="036/01/134.jpg"/>
            <p id="id.2.1.133.3.0.0.0" type="head">
              <s id="id.2.1.133.3.1.1.0">PROPOSITIO XV. </s>
            </p>
            <p id="N13E79" type="head">
              <s id="id.2.1.133.3.3.1.0">PROBLEMA. </s>
            </p>
            <p id="id.2.1.133.4.0.0.0" type="main">
              <s id="id.2.1.133.4.1.1.0">Quia verò dum pondera vecte mouentur,
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              vectis quoq; grauitatem habet, cuius nulla ha­
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              ctenus mentio facta eſt: idcirco primùm quo­
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              modo inueniatur potentia, quæ in dato puncto
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              datum vectem, cuius fulcimentum ſit quoq; da­
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              tum, ſuſtineat, oſtendamus.
                <figure id="id.036.01.134.1.jpg" place="text" xlink:href="036/01/134/1.jpg" number="130"/>
              </s>
            </p>
            <p id="id.2.1.133.5.0.0.0" type="main">
              <s id="id.2.1.133.5.1.1.0">Sit datus vectis AB, cuius fulcimentum ſit datum C; ſitq;
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              punctum D, in quo collocanda ſit potentia, quæ vectem AB ſu
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              ſtinere debeat, ita vt immobilis perſiſtat. </s>
              <s id="id.2.1.133.5.1.2.0">ducatur à puncto C
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              linea CE horizonti perpendicularis, quæ vectem AB in duas di­
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              uidat partes AE EF, ſitq; partis AE centrum grauitatis G, &
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              partis EF centrum grauitatis H; à punctis〈qué〉 GH horizon­
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              tibus perpendiculares ducantur Gk HL, quæ lineam AF
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              in punctis KL ſecent. </s>
              <s id="id.2.1.133.5.1.3.0">quoniam enim vectis AB à linea CE in duas
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              diuiditur partes AE EF; ideo vectis AB nihil aliud erit, niſi
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              duo pondera AE EF in vecte, ſiue libra AF poſita; cuius ſu­
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              ſpenſio, ſiue fulcimentum eſt C. quare pondera AE EF ita erunt
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              poſita, ac ſi in kL eſſent appenſa. </s>
              <s id="id.2.1.133.5.1.4.0">diuidatur ergo kL in M,
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              ita vt kM ad ML, ſit vt grauitas partis EF ad grauitatem par­
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              tis AE; & vt CA ad CM, ita fiat grauitas totius vectis AB ad
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              potentiam, quæ ſi collocetur in D (dummodo DA horizonti </s>
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          </chap>
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