Clavius, Christoph, Gnomonices libri octo, in quibus non solum horologiorum solariu[m], sed aliarum quo[quam] rerum, quae ex gnomonis umbra cognosci possunt, descriptiones geometricè demonstrantur

Page concordance

< >
Scan Original
101 81
102 82
103 83
104 84
105 85
106 86
107 87
108 88
109 89
110 90
111 91
112 92
113 93
114 94
115 95
116 96
117 97
118 98
119 99
120 100
121 101
122 102
123 103
124 104
125 105
126 106
127 107
128 108
129 109
130 110
< >
page |< < (143) of 677 > >|
    <echo version="1.0RC">
      <text xml:lang="it" type="free">
        <div xml:id="echoid-div519" type="section" level="1" n="143">
          <p>
            <s xml:id="echoid-s9212" xml:space="preserve">
              <pb o="143" file="0163" n="163" rhead="LIBER SECVNDVS."/>
            in H, & </s>
            <s xml:id="echoid-s9213" xml:space="preserve">I. </s>
            <s xml:id="echoid-s9214" xml:space="preserve">Si igitur per B C, duci intelligatur Horizon ad Meridianum rectus, & </s>
            <s xml:id="echoid-s9215" xml:space="preserve">per HI, planum
              <lb/>
            horologij Horizonti æquidiſtans; </s>
            <s xml:id="echoid-s9216" xml:space="preserve">cum & </s>
            <s xml:id="echoid-s9217" xml:space="preserve">Meridianus, & </s>
            <s xml:id="echoid-s9218" xml:space="preserve">Verticalis ad Horizontem rectus ſit, erit
              <lb/>
            ad eundem communis eorum ſectio A D, perpendicularis, atque adeo & </s>
            <s xml:id="echoid-s9219" xml:space="preserve">ad planum horologij per
              <lb/>
              <note position="right" xlink:label="note-0163-01" xlink:href="note-0163-01a" xml:space="preserve">19. vndec.</note>
            H I, ductum Horizonti parallelum, ex iis, quæ ad pro-
              <lb/>
              <figure xlink:label="fig-0163-01" xlink:href="fig-0163-01a" number="119">
                <image file="0163-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0163-01"/>
              </figure>
            poſ. </s>
            <s xml:id="echoid-s9220" xml:space="preserve">14. </s>
            <s xml:id="echoid-s9221" xml:space="preserve">lib. </s>
            <s xml:id="echoid-s9222" xml:space="preserve">11. </s>
            <s xml:id="echoid-s9223" xml:space="preserve">Euclidis demonſtrauimus, perpendicu-
              <lb/>
            laris erit. </s>
            <s xml:id="echoid-s9224" xml:space="preserve">Erit ergo H I, in plano horologij linea me-
              <lb/>
            ridiana, ſiue horæ 12. </s>
            <s xml:id="echoid-s9225" xml:space="preserve">vtpote communis ſectio Meri-
              <lb/>
            diani, & </s>
            <s xml:id="echoid-s9226" xml:space="preserve">plani horologij. </s>
            <s xml:id="echoid-s9227" xml:space="preserve">Eſt enim recta H I, in plano
              <lb/>
            rectarum H D, I D, hoc eſt, in plano Meridiani; </s>
            <s xml:id="echoid-s9228" xml:space="preserve">D G,
              <lb/>
              <note position="right" xlink:label="note-0163-02" xlink:href="note-0163-02a" xml:space="preserve">2. vndec.</note>
            gnomon erit, ſiue ſtylus ad planum horologij rectus,
              <lb/>
              <note position="left" xlink:label="note-0163-03" xlink:href="note-0163-03a" xml:space="preserve">10</note>
            atque adeò & </s>
            <s xml:id="echoid-s9229" xml:space="preserve">ad H I, lineam meridianam, per defini-
              <lb/>
            tionem 3. </s>
            <s xml:id="echoid-s9230" xml:space="preserve">lib. </s>
            <s xml:id="echoid-s9231" xml:space="preserve">11. </s>
            <s xml:id="echoid-s9232" xml:space="preserve">Euclidis, perpendicularis, cuius ver-
              <lb/>
            tex D, idem eſt, quod centrum mundi, per propoſ. </s>
            <s xml:id="echoid-s9233" xml:space="preserve">2.
              <lb/>
            </s>
            <s xml:id="echoid-s9234" xml:space="preserve">ſuperioris lib. </s>
            <s xml:id="echoid-s9235" xml:space="preserve">Locus ſtyli punctum G, in linea meri-
              <lb/>
            diana diſtans à puncto H, in quo axis mundi plano
              <lb/>
            horologij occurrit, & </s>
            <s xml:id="echoid-s9236" xml:space="preserve">quod centrum dicitur horolo-
              <lb/>
            gij, interuallo G H, vel à puncto I, in quo planũ Aequa
              <lb/>
            toris lineam meridianam ſecat interuallo G I. </s>
            <s xml:id="echoid-s9237" xml:space="preserve">Quæ omnia perſpicua ſunt & </s>
            <s xml:id="echoid-s9238" xml:space="preserve">manifeſta, ſi Meridia
              <lb/>
            nus in proprio ſitu intelligatur eſſe poſitus, vt nimirum punctum E, ad polum arcticum ſpectet, & </s>
            <s xml:id="echoid-s9239" xml:space="preserve">
              <lb/>
              <note position="right" xlink:label="note-0163-04" xlink:href="note-0163-04a" xml:space="preserve">Portio Analem
                <lb/>
              matis quid di-
                <lb/>
              catur.</note>
            F, vergat in auſtrum. </s>
            <s xml:id="echoid-s9240" xml:space="preserve">Hanc autem figuram appellabimus doctrinæ cauſa portionem Analemma-
              <lb/>
              <note position="left" xlink:label="note-0163-05" xlink:href="note-0163-05a" xml:space="preserve">20</note>
            tis, cum verè pars ſit Analemmatis propoſ. </s>
            <s xml:id="echoid-s9241" xml:space="preserve">1. </s>
            <s xml:id="echoid-s9242" xml:space="preserve">antecedentis lib. </s>
            <s xml:id="echoid-s9243" xml:space="preserve">deſcripti, continens nimirum com-
              <lb/>
            munes ſectiones Meridiani, & </s>
            <s xml:id="echoid-s9244" xml:space="preserve">aliquot circulorum ſphæræ.</s>
            <s xml:id="echoid-s9245" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s9246" xml:space="preserve">IAM vero beneficio trianguli D H I, conſtruemus horologium Aſtronomicum horizontale,
              <lb/>
              <note position="right" xlink:label="note-0163-06" xlink:href="note-0163-06a" xml:space="preserve">Horizontalis
                <lb/>
              horologij Aſtro
                <lb/>
              nomici deſcri-
                <lb/>
              ptio.</note>
            hoc modo. </s>
            <s xml:id="echoid-s9247" xml:space="preserve">In lineam rectam H E, ductam vtcunque pro linea meridiana in plano horologij,
              <lb/>
            transferatur H I, linea meridiana portionis Analemmatis, & </s>
            <s xml:id="echoid-s9248" xml:space="preserve">abſcindatur I E, ex recta H E, rectæ
              <lb/>
              <figure xlink:label="fig-0163-02" xlink:href="fig-0163-02a" number="120">
                <image file="0163-02" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0163-02"/>
              </figure>
              <note position="left" xlink:label="note-0163-07" xlink:href="note-0163-07a" xml:space="preserve">30</note>
              <note position="left" xlink:label="note-0163-08" xlink:href="note-0163-08a" xml:space="preserve">40</note>
              <note position="left" xlink:label="note-0163-09" xlink:href="note-0163-09a" xml:space="preserve">50</note>
            DI, in eadem portione Analemmatis æqualis. </s>
            <s xml:id="echoid-s9249" xml:space="preserve">Deinde per I, in plano horologij educatur ad H E,
              <lb/>
            perpendicularis F k: </s>
            <s xml:id="echoid-s9250" xml:space="preserve">Et ex E, deſcribatur circulus ad quodcunque interuallum, quo diuiſo in 24.
              <lb/>
            </s>
            <s xml:id="echoid-s9251" xml:space="preserve">partes æquales, initio facto à linea meridiana H E, producta, ducantur per puncta diuiſionum, & </s>
            <s xml:id="echoid-s9252" xml:space="preserve">
              <lb/>
            centrum E, rectæ occultę ſecantes rectam F K, in punctis, per quæ & </s>
            <s xml:id="echoid-s9253" xml:space="preserve">punctum H, emiſſæ lineę re-
              <lb/>
            ctę dabunt lineas horarias à meridie, vel media nocte in plano, quod Horizonti æquidiſtat; </s>
            <s xml:id="echoid-s9254" xml:space="preserve">ita vt
              <lb/>
            H E, det horam duodecimam meridiei, & </s>
            <s xml:id="echoid-s9255" xml:space="preserve">lineę nobis conuerſis ad horologium poſitæ ad ſini-
              <lb/>
              <note position="right" xlink:label="note-0163-10" xlink:href="note-0163-10a" xml:space="preserve">Ordo horaruæ
                <lb/>
              in horologio
                <lb/>
              horizontali.</note>
            ſtram (Appello autem ſiniſtram partem, in qua punctum F, dextram vero, in qua punctum k)
              <lb/>
            oſtendant horas à meridie, & </s>
            <s xml:id="echoid-s9256" xml:space="preserve">lineę ad dextram poſitæ horas ante meridiem, vel poſt mediam no-
              <lb/>
            ctem, vt numeri ipſi indicant. </s>
            <s xml:id="echoid-s9257" xml:space="preserve">Pro hora verò ſexta eſt ducenda per H, linea C L, ad H E, perpen-
              <lb/>
            dicularis, vel æquidiſtans ipſi F K, monſtrabitq́; </s>
            <s xml:id="echoid-s9258" xml:space="preserve">H C, horam ſextam à meridie, & </s>
            <s xml:id="echoid-s9259" xml:space="preserve">H L, horam
              <lb/>
            ſextam à media nocte.</s>
            <s xml:id="echoid-s9260" xml:space="preserve"/>
          </p>
        </div>
      </text>
    </echo>
Impressum