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

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            ſcriptus circulus in 24. </s>
            <s xml:id="echoid-s41795" xml:space="preserve">horas ęquales diuidatur, quæ rurſus, ſi placet, in ſemihoras, & </s>
            <s xml:id="echoid-s41796" xml:space="preserve">in quadrã
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            -
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            tes horarum ſubdiuidantur. </s>
            <s xml:id="echoid-s41797" xml:space="preserve">Rectæ enim ductæ per bina quęuis puncta æqualiter à punctis L, O,
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              <figure xlink:label="fig-0654-01" xlink:href="fig-0654-01a" number="423">
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              <note position="left" xlink:label="note-0654-01" xlink:href="note-0654-01a" xml:space="preserve">10</note>
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              <note position="left" xlink:label="note-0654-03" xlink:href="note-0654-03a" xml:space="preserve">30</note>
              <note position="left" xlink:label="note-0654-04" xlink:href="note-0654-04a" xml:space="preserve">40</note>
              <note position="left" xlink:label="note-0654-05" xlink:href="note-0654-05a" xml:space="preserve">50</note>
            remota dabunt 12. </s>
            <s xml:id="echoid-s41798" xml:space="preserve">horas à meridie, & </s>
            <s xml:id="echoid-s41799" xml:space="preserve">12. </s>
            <s xml:id="echoid-s41800" xml:space="preserve">à med. </s>
            <s xml:id="echoid-s41801" xml:space="preserve">noc. </s>
            <s xml:id="echoid-s41802" xml:space="preserve">quarum M A, ſextam horam dabit, ante-
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            meridianę vero horæ à recta E O, verſus F L, & </s>
            <s xml:id="echoid-s41803" xml:space="preserve">pomeridianæ à recta F L, verſus E O, numeran-
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            tur. </s>
            <s xml:id="echoid-s41804" xml:space="preserve">Term inabuntur autem hæ lineæ horarum, in ſuperiore quidem parte, in circunferentia cir-
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            culi ex M, ad interuallum M A, deſcripti, in inferiori autem in linea ipſi L O, parallela tanto ſal-
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            tem interuallo diſtante à recta L O, quanta eſt portio rectæ A I, vel A K, inter A, & </s>
            <s xml:id="echoid-s41805" xml:space="preserve">rectam F L.</s>
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            <s xml:id="echoid-s41807" xml:space="preserve">RVRSVS fabricandum erit brachiolum ex dura aliqua, & </s>
            <s xml:id="echoid-s41808" xml:space="preserve">ſolida materia, conſtans tribus
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            volubilibus ſegmentis Q R, R S, S T, quæ in longum extenſa longitudinem efficiant rectæ G A,
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            æqualem. </s>
            <s xml:id="echoid-s41809" xml:space="preserve">Huius brachioli extremum punctum Q, figendum eſt in puncto G, ita vt alterum extre
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            mum T, liberæ per omnia loca trianguli A, E F, diſcurrere poſſit, & </s>
            <s xml:id="echoid-s41810" xml:space="preserve">in quocunque loco firmari, </s>
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