DelMonte, Guidubaldo, Mechanicorvm Liber

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    <archimedes>
      <text>
        <body>
          <chap id="N1043F">
            <p id="id.2.1.25.2.0.0.0" type="main">
              <s id="id.2.1.25.2.1.1.0">
                <pb xlink:href="036/01/044.jpg"/>
              tum naturalem fieri de­
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              bere; ſicuti prius dictum
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              eſt. </s>
              <s id="id.2.1.25.2.1.2.0">In quocunq; enim
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              ſitu pondus aliquod con
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              ſtituatur, ſi naturalem
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              eius ad propium locum
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              motionem ſpectemus,
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              cùm rectá ad eum ſua­
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              ptè natura moueatur, ſup
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              poſita totius vniuerſi figu
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              ra, eiuſmodi erit; vt
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              ſemper
                <expan abbr="ſpatiũ">ſpatium</expan>
              , per quod
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              naturaliter mouetur, ra­
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              tionem habere videatur
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                <figure id="id.036.01.044.1.jpg" place="text" xlink:href="036/01/044/1.jpg" number="30"/>
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              lineæ à circumferentia ad centrum productæ. </s>
              <s id="id.2.1.25.2.1.3.0">non igitur natura
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              les deſcenſus recti cuiuslibet ſoluti ponderis per lineas fieri poſ
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              ſunt inter ſe ſe parallelas; cùm omnes in centrum mundi conue­
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              niant. </s>
              <s id="id.2.1.25.2.1.4.0">ſupponunt deinde ponderis ex D in A per rectam lineam
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              verſus centrum mundi motum eiuſdem eſſe quantitatis, ac ſi fuiſ
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              ſet ex O in C: ita vt punctum A æqualiter à centro mundi ſit
                <lb/>
              diſtans, vt C. </s>
              <s id="N112FC">quod eſt etiam falſum; nam punctum A magis
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              à centro mundi diſtat, quàm C: maior enim eſt linea à cen­
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                <arrow.to.target n="note49"/>
              tro mundi vſq; ad A, quàm à centro mundi vſq; ad C: cùm li­
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              nea à centro mundi vſq; ad A rectum ſubtendat angulum à li­
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              neis AC, & à puncto C ad centrum mundi contentum. </s>
              <s id="id.2.1.25.2.1.5.0">ex qui­
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              bus non ſolum ſuppoſitio illa, qua libram DE in AB redire demon
                <lb/>
              ſtrant, verùm etiam omnes ferè ipſorum demonſtrationes ruunt. </s>
              <s id="id.2.1.25.2.1.6.0">
                <lb/>
              niſi fortaſſe dixerint, hæc omnia propter maximam à centro mun
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              di vſq; ad nos diſtantiam adeo inſenſibilia eſſe, vt propter inſen
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              ſibilitatem tanquam vera ſupponi poſsint: cùm omnes
                <expan abbr="quidẽ">quidem</expan>
              alii, qui
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              hæc tractauerunt, tanquam nota ſuppoſuerint. </s>
              <s id="id.2.1.25.2.1.7.0">præſertim quia
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              ſenſibilitas illa non efficit, quin deſcenſus ponderis ex L in D
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              (vt eorum verbis vtar) minus capiat de directo, quàm deſcen­
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              ſus DA. </s>
              <s id="N11327">ſimiliter arcus DA magis de directo capiet, quàm cir
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              cumferentia EV. </s>
              <s id="N1132B">quocirca vera erit ſuppoſitio; aliæq; demon­
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              ſtrationes in ſuo robore permanebunt. </s>
              <s id="id.2.1.25.2.1.8.0">Concedamus etiam pon</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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