Newton, Isaac, Philosophia naturalis principia mathematica, 1713

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              <subchap2>
                <pb xlink:href="039/01/062.jpg" pagenum="34"/>
                <p type="main">
                  <s>
                    <arrow.to.target n="note16"/>
                  tranſgredi, neque prius attingere quam quantitates diminuuntur in
                    <lb/>
                  infinitum. </s>
                  <s>Res clarius intelligetur in infinite magnis. </s>
                  <s>Si quantitates
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                  duæ quarum data eſt differentia auges ntur in infinitum, dabitur
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                  harum ultima ratio, nimirum ratio æqualitatis, nec tamen ideo da­
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                  buntur quantitates ultimæ ſeu maximæ quarum iſta eſt ratio. </s>
                  <s>Igitur
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                  in ſequentibus, ſiquando facili rerum conceptui conſulens dixero
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                  quantitates quam minimas, vel evaneſcentes, vel ultimas; cave in­
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                  telligas quantitates magnitudine determinatas, ſed cogita ſemper
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                  diminuendas ſine limite. </s>
                </p>
                <p type="margin">
                  <s>
                    <margin.target id="note16"/>
                  DE MOTU
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                  CORPORUM</s>
                </p>
              </subchap2>
              <subchap2>
                <p type="main">
                  <s>
                    <emph type="center"/>
                  SECTIO II.
                    <emph.end type="center"/>
                  </s>
                </p>
                <p type="main">
                  <s>
                    <emph type="center"/>
                    <emph type="italics"/>
                  De Inventione Virium Centripetarum.
                    <emph.end type="italics"/>
                    <emph.end type="center"/>
                  </s>
                </p>
                <p type="main">
                  <s>
                    <emph type="center"/>
                  PROPOSITIO I. THEOREMA I.
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                  </s>
                </p>
                <p type="main">
                  <s>
                    <emph type="italics"/>
                  Areas, quas corpora in gyros acta radiis ad immobile centrum virium
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                  ductis deſcribunt, & in planis immobilibus conſiſtere, & eſſe tem­
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                  poribus proportionales.
                    <emph.end type="italics"/>
                  </s>
                </p>
                <p type="main">
                  <s>Dividatur tempus in partes æquales, & prima temporis parte de­
                    <lb/>
                  ſcribat corpus vi inſita rectam
                    <emph type="italics"/>
                  AB.
                    <emph.end type="italics"/>
                  Idem ſecunda temporis parte, ſi
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                  nil impediret, recta
                    <lb/>
                    <figure id="id.039.01.062.1.jpg" xlink:href="039/01/062/1.jpg" number="13"/>
                    <lb/>
                  pergeret ad
                    <emph type="italics"/>
                  c,
                    <emph.end type="italics"/>
                  (per
                    <lb/>
                  Leg. </s>
                  <s>1.) deſcribens
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                  lineam
                    <emph type="italics"/>
                  Bc
                    <emph.end type="italics"/>
                  æqualem
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                  ipſi
                    <emph type="italics"/>
                  AB
                    <emph.end type="italics"/>
                  ; adeo ut ra­
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                  diis
                    <emph type="italics"/>
                  AS, BS, cS
                    <emph.end type="italics"/>
                  ad
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                  centrum actis, con­
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                  fectæ forent æqua­
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                  les areæ
                    <emph type="italics"/>
                  ASB, BSc.
                    <emph.end type="italics"/>
                    <lb/>
                  Verum ubi corpus
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                  venit ad
                    <emph type="italics"/>
                  B,
                    <emph.end type="italics"/>
                  agat vis
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                  centripeta impul­
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                  ſu unico ſed mag­
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                  no, efficiatque ut
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                  corpus de recta
                    <emph type="italics"/>
                  Bc
                    <emph.end type="italics"/>
                    <lb/>
                  declinet & pergat
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                  in recta
                    <emph type="italics"/>
                  BC.
                    <emph.end type="italics"/>
                  Ipſi
                    <lb/>
                    <emph type="italics"/>
                  BS
                    <emph.end type="italics"/>
                  parallela agatur
                    <emph type="italics"/>
                  cC,
                    <emph.end type="italics"/>
                  occurens
                    <emph type="italics"/>
                  BC
                    <emph.end type="italics"/>
                  in
                    <emph type="italics"/>
                  C
                    <emph.end type="italics"/>
                  ; & completa ſecunda
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                  temporis parte, corpus (per Legum Corol. </s>
                  <s>1.) reperietur in
                    <emph type="italics"/>
                  C,
                    <emph.end type="italics"/>
                  in </s>
                </p>
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