Newton, Isaac, Philosophia naturalis principia mathematica, 1713

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                <p type="main">
                  <s>
                    <pb xlink:href="039/01/148.jpg" pagenum="120"/>
                    <arrow.to.target n="note96"/>
                  primum urgetur in
                    <emph type="italics"/>
                  I,
                    <emph.end type="italics"/>
                  ut
                    <emph type="italics"/>
                  DR
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                  ad
                    <emph type="italics"/>
                  DF.
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                  Pergat autem corpus verſus
                    <lb/>
                    <emph type="italics"/>
                  k;
                    <emph.end type="italics"/>
                  centroque
                    <emph type="italics"/>
                  C
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                  & intervallo
                    <emph type="italics"/>
                  Ck
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                  deſcribatur circulus
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                  ke
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                  occurrens
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                  rectæ
                    <emph type="italics"/>
                  PD
                    <emph.end type="italics"/>
                  in
                    <emph type="italics"/>
                  e,
                    <emph.end type="italics"/>
                  & erigantur curvarum
                    <emph type="italics"/>
                  ALMm, BFGg, abzv, dcxw
                    <emph.end type="italics"/>
                    <lb/>
                    <figure id="id.039.01.148.1.jpg" xlink:href="039/01/148/1.jpg" number="92"/>
                    <lb/>
                  ordinatim applicatæ
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                  em, eg, ev, ew.
                    <emph.end type="italics"/>
                  Ex dato rectangulo
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                  PDRQ,
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                    <lb/>
                  dataque lege vis centripetæ qua corpus primum agitatur, dantur cur­
                    <lb/>
                  væ lineæ
                    <emph type="italics"/>
                  BFGg, ALMm,
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                  per conſtructionem Problematis XXVII,
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                  & ejus Corol. </s>
                  <s>1. Deinde ex dato angulo
                    <emph type="italics"/>
                  CIT
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                  datur proportio naſcen­
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                  tium
                    <emph type="italics"/>
                  IK, KN,
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                  & inde, per conſtructionem Prob. </s>
                  <s>XXVIII, datur
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                  quantitas Q, una cum curvis lineis
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                  abzv, dcxw:
                    <emph.end type="italics"/>
                  adeoque com­
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                  pleto tempore quovis
                    <emph type="italics"/>
                  Dbve,
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                  datur tum corporis altitudo
                    <emph type="italics"/>
                  Ce
                    <emph.end type="italics"/>
                  vel
                    <emph type="italics"/>
                  Ck,
                    <emph.end type="italics"/>
                    <lb/>
                  tum area
                    <emph type="italics"/>
                  Dcwe,
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                  eique æqualis Sector
                    <emph type="italics"/>
                  XCy,
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                  anguluſque
                    <emph type="italics"/>
                  ICk
                    <emph.end type="italics"/>
                  &
                    <lb/>
                  locus
                    <emph type="italics"/>
                  k
                    <emph.end type="italics"/>
                  in quo corpus tunc verſabitur.
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                  Q.E.I.
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                  </s>
                </p>
                <p type="margin">
                  <s>
                    <margin.target id="note96"/>
                  DE MOTU
                    <lb/>
                  CORPORUM</s>
                </p>
                <p type="main">
                  <s>Supponimus autem in his Propoſitionibus Vim centripetam in
                    <lb/>
                  receſſu quidem a centro variari ſecundum legem quamcunque quam
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                  quis imaginari poteſt, in æqualibus autem a centro diſtantiis eſſe
                    <lb/>
                  undeque eandem. </s>
                  <s>Atque hactenus Motum corporum in Orbibus
                    <lb/>
                  immobilibus conſideravimus. </s>
                  <s>Supereſt ut de Motu eorum in Orbi­
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                  bus qui circa centrum virium revolvuntur adjiciamus pauca. </s>
                </p>
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