Newton, Isaac, Philosophia naturalis principia mathematica, 1713

Table of figures

< >
[Figure 231]
Page: 480
[Figure 232]
Page: 482
[Figure 233]
Page: 484
[Figure 234]
Page: 495
< >
page |< < of 524 > >|
    <archimedes>
      <text>
        <body>
          <chap>
            <subchap1>
              <subchap2>
                <p type="main">
                  <s>
                    <pb xlink:href="039/01/235.jpg" pagenum="207"/>
                    <arrow.to.target n="note183"/>
                  </s>
                </p>
                <p type="margin">
                  <s>
                    <margin.target id="note183"/>
                  LIBER
                    <lb/>
                  PRIMUS.</s>
                </p>
                <p type="main">
                  <s>
                    <emph type="center"/>
                    <emph type="italics"/>
                  Scholium.
                    <emph.end type="italics"/>
                    <emph.end type="center"/>
                  </s>
                </p>
                <p type="main">
                  <s>Harum attractionum haud multum diſſimiles ſunt Lucis reflexi­
                    <lb/>
                  ones & refractiones, factæ ſecundum datam Secantium rationem, ut
                    <lb/>
                  invenit
                    <emph type="italics"/>
                  Snellius,
                    <emph.end type="italics"/>
                  & per conſequens ſecundum datam Sinuum ratio­
                    <lb/>
                  nem, ut expoſuit
                    <emph type="italics"/>
                  Carteſius.
                    <emph.end type="italics"/>
                  Namque Lucem ſucceſſive propagari
                    <lb/>
                  & ſpatio quaſi ſeptem vel octo minutorum primorum a Sole ad
                    <lb/>
                  Terram venire, jam conſtat per Phænomena Satellitum
                    <emph type="italics"/>
                  Jovis,
                    <emph.end type="italics"/>
                  Ob­
                    <lb/>
                  ſervationibus diverſorum Aſtronomorum confirmata. </s>
                  <s>Radii autem
                    <lb/>
                  in aere exiſtentes (uti dudum
                    <emph type="italics"/>
                  Grimaldus,
                    <emph.end type="italics"/>
                  luce per foramen in te­
                    <lb/>
                  nebroſum cubiculum admiſſa, invenit, & ipſe quoque expertus
                    <lb/>
                  ſum) in tranſitu ſuo prope corporum vel opaeorum vel perſpicuo­
                    <lb/>
                  rum angulos (quales ſunt nummorum ex auro, argento & ære cu­
                    <lb/>
                  ſorum termini rectanguli circulares, & cultrorum, lapidum aut fra­
                    <lb/>
                  ctorum vitrorum acies) incurvantur circum corpora, quaſi attracti
                    <lb/>
                  in eadem; & ex his radiis, qui in tranſitu illo propius accedunt
                    <lb/>
                  ad corpora incurvantur magis, qua­
                    <lb/>
                    <figure id="id.039.01.235.1.jpg" xlink:href="039/01/235/1.jpg" number="137"/>
                    <lb/>
                  ſi magis attracti, ut ipſe etiam dili­
                    <lb/>
                  genter obſervavi. </s>
                  <s>In figura deſig­
                    <lb/>
                  nat
                    <emph type="italics"/>
                  s
                    <emph.end type="italics"/>
                  aciem cultri vel cunei cujuſvis
                    <lb/>
                    <emph type="italics"/>
                  AsB
                    <emph.end type="italics"/>
                  ; &
                    <emph type="italics"/>
                  gowog, fnunf, emtme,
                    <lb/>
                  dlsld,
                    <emph.end type="italics"/>
                  ſunt radii, arcubus
                    <emph type="italics"/>
                  owo,
                    <lb/>
                  nun, mtm, lsl
                    <emph.end type="italics"/>
                  verſus cultrum
                    <lb/>
                  incurvati; idque magis vel mi­
                    <lb/>
                  nus pro diſtantia eorum a cultro. </s>
                  <s>
                    <lb/>
                  Cum autem talis incurvatio radio­
                    <lb/>
                  rum fiat in aere extra cultrum, de­
                    <lb/>
                  bebunt etiam radii, qui incidunt in cultrum, prius incurvari in aere
                    <lb/>
                  quam cultrum attingunt. </s>
                  <s>Et par eſt ratio incidentium in vitrum. </s>
                  <s>
                    <lb/>
                  Fit igitur refractio, non in puncto incidentiæ, ſed paulatim per
                    <lb/>
                  continuam incurvationem radiorum, factam partim in aere ante­
                    <lb/>
                  quam attingunt vitrum, partim (ni fallor) in vitro, poſtquam illud
                    <lb/>
                  ingreſſi ſunt: uti in radiis
                    <emph type="italics"/>
                  ckzkc, biyib, ahxha
                    <emph.end type="italics"/>
                  incidentibus ad
                    <lb/>
                    <emph type="italics"/>
                  r, q, p,
                    <emph.end type="italics"/>
                  & inter
                    <emph type="italics"/>
                  k
                    <emph.end type="italics"/>
                  &
                    <emph type="italics"/>
                  z, i
                    <emph.end type="italics"/>
                  &
                    <emph type="italics"/>
                  y, h
                    <emph.end type="italics"/>
                  &
                    <emph type="italics"/>
                  x
                    <emph.end type="italics"/>
                  incurvatis, delineatum eſt. </s>
                  <s>
                    <lb/>
                  Igitur ob analogiam quæ eſt inter propagationem radiorum lucis
                    <lb/>
                  & progreſſum corporum, viſum eſt Propoſitiones ſequentes in uſus
                    <lb/>
                  Opticos ſubjungere; interea de natura radiorum (utrum ſint cor­
                    <lb/>
                  pora necne) nihil omnino diſputans, ſed Trajectorias corporum
                    <lb/>
                  Trajectoriis radiorum perſimiles ſolummodo determinans. </s>
                </p>
              </subchap2>
            </subchap1>
          </chap>
        </body>
      </text>
    </archimedes>
Impressum