Barrow, Isaac, Lectiones opticae & geometricae : in quibus phaenomenon opticorum genuinae rationes investigantur, ac exponuntur: et generalia curvarum linearum symptomata declarantur

Page concordance

< >
Scan Original
71 53
72 54
73 55
74 56
75 57
76 58
77 59
78 60
79 61
80 62
81 63
82 64
83 65
84 66
85 67
86 68
87 69
88 70
89 71
90 72
91 73
92 74
93 75
94 76
95 77
96 78
97 79
98 80
99 81
100 82
< >
page |< < (62) of 393 > >|
    <echo version="1.0RC">
      <text xml:lang="la" type="free">
        <div xml:id="echoid-div91" type="section" level="1" n="17">
          <p>
            <s xml:id="echoid-s3746" xml:space="preserve">
              <pb o="62" file="0080" n="80" rhead=""/>
            NR, RX; </s>
            <s xml:id="echoid-s3747" xml:space="preserve">& </s>
            <s xml:id="echoid-s3748" xml:space="preserve">incidentinm AN, AR, AX reflexi GN, HR, IX
              <lb/>
              <note position="left" xlink:label="note-0080-01" xlink:href="note-0080-01a" xml:space="preserve">Fig. 85.</note>
            axi occurrant producti punctis K, L, M; </s>
            <s xml:id="echoid-s3749" xml:space="preserve">erit intervallum ML ab
              <lb/>
            obliquiorum occurſibus concluſum majus ipſo LK rectiorum occurſi-
              <lb/>
            bus intercepto.</s>
            <s xml:id="echoid-s3750" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3751" xml:space="preserve">Nam quoniam eſt ANq + AXq &</s>
            <s xml:id="echoid-s3752" xml:space="preserve">gt; </s>
            <s xml:id="echoid-s3753" xml:space="preserve">2 ARq. </s>
            <s xml:id="echoid-s3754" xml:space="preserve">erit 2 ACq
              <lb/>
            - ANq - AXq &</s>
            <s xml:id="echoid-s3755" xml:space="preserve">lt; </s>
            <s xml:id="echoid-s3756" xml:space="preserve">2 ACq - 2 ARq. </s>
            <s xml:id="echoid-s3757" xml:space="preserve">adeóque ACq -
              <lb/>
            - AXq. </s>
            <s xml:id="echoid-s3758" xml:space="preserve">ACq - ARq &</s>
            <s xml:id="echoid-s3759" xml:space="preserve">lt; </s>
            <s xml:id="echoid-s3760" xml:space="preserve">ACq - ARq. </s>
            <s xml:id="echoid-s3761" xml:space="preserve">ACq - ANq.
              <lb/>
            </s>
            <s xml:id="echoid-s3762" xml:space="preserve">hoc eſt, è præmonſtratis, CL. </s>
            <s xml:id="echoid-s3763" xml:space="preserve">CM &</s>
            <s xml:id="echoid-s3764" xml:space="preserve">lt; </s>
            <s xml:id="echoid-s3765" xml:space="preserve">CK. </s>
            <s xml:id="echoid-s3766" xml:space="preserve">CL; </s>
            <s xml:id="echoid-s3767" xml:space="preserve">vel inversè
              <lb/>
            CM. </s>
            <s xml:id="echoid-s3768" xml:space="preserve">CL &</s>
            <s xml:id="echoid-s3769" xml:space="preserve">gt; </s>
            <s xml:id="echoid-s3770" xml:space="preserve">CL. </s>
            <s xml:id="echoid-s3771" xml:space="preserve">CK. </s>
            <s xml:id="echoid-s3772" xml:space="preserve">quapropter erit CM + CK. </s>
            <s xml:id="echoid-s3773" xml:space="preserve">&</s>
            <s xml:id="echoid-s3774" xml:space="preserve">gt; </s>
            <s xml:id="echoid-s3775" xml:space="preserve">2 CL. </s>
            <s xml:id="echoid-s3776" xml:space="preserve">
              <lb/>
            & </s>
            <s xml:id="echoid-s3777" xml:space="preserve">ideò CM - CL &</s>
            <s xml:id="echoid-s3778" xml:space="preserve">gt; </s>
            <s xml:id="echoid-s3779" xml:space="preserve">CL - CK hoc eſt ML &</s>
            <s xml:id="echoid-s3780" xml:space="preserve">gt; </s>
            <s xml:id="echoid-s3781" xml:space="preserve">LK : </s>
            <s xml:id="echoid-s3782" xml:space="preserve">
              <lb/>
            Q E. </s>
            <s xml:id="echoid-s3783" xml:space="preserve">D.</s>
            <s xml:id="echoid-s3784" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3785" xml:space="preserve">XVIII. </s>
            <s xml:id="echoid-s3786" xml:space="preserve">Hinc conſtat, etiam in hac hypotheſi, rectiùs incidentem
              <lb/>
            lucem â reflectione magìs inſpiſſari; </s>
            <s xml:id="echoid-s3787" xml:space="preserve">ſeu ſpatio verſus limitem Z arcti-
              <lb/>
            ore conſtringi.</s>
            <s xml:id="echoid-s3788" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3789" xml:space="preserve">XIX. </s>
            <s xml:id="echoid-s3790" xml:space="preserve">Quin ab his demum omnibus colligitur, ſi uſpiam in axe
              <lb/>
            (velut ad O) conſtituatur oculi centrum, quod punctum A neceſſa-
              <lb/>
              <note position="left" xlink:label="note-0080-02" xlink:href="note-0080-02a" xml:space="preserve">Fig. 85.</note>
            riò circa limitem Z apparebit. </s>
            <s xml:id="echoid-s3791" xml:space="preserve">Etenim (prorſus ut in præcedente
              <lb/>
            quoad radios ab infinitè diſſito puncto manantes hypotheſi) ab axis
              <lb/>
            illi puncto adjacente parte radii cùm copioſiores, tum axi viciniores,
              <lb/>
            oculóque rectiores, efficaciâ proinde præpollentes, nec non qui
              <lb/>
            faciliùs re-adunentur, provenire videntur. </s>
            <s xml:id="echoid-s3792" xml:space="preserve">quæ nempe cuncta ſimul
              <lb/>
            ac emergentem propoſiti conſequentiam abunde, puto, dedimus
              <lb/>
            enucleata. </s>
            <s xml:id="echoid-s3793" xml:space="preserve">Succedit ut hâc parte defuncti pro viſu extra radiationis
              <lb/>
            axem collocato itidem imaginis ſedem definiamus. </s>
            <s xml:id="echoid-s3794" xml:space="preserve">veruntamen hæc,
              <lb/>
            quanquam haud ità quantitate multa , pro rei tamen obſcuritate for-
              <lb/>
            taſſis nimia videbuntur. </s>
            <s xml:id="echoid-s3795" xml:space="preserve">itaque jam opportunum autumo deſiſtere.</s>
            <s xml:id="echoid-s3796" xml:space="preserve"/>
          </p>
        </div>
      </text>
    </echo>
Impressum