Vitruvius, De architectura libri decem, 1567

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                <pb o="304" file="514.01.336" n="336" rhead="LIBER"/>
              lum, quandoque parabolem, interim hyperbolem, aut demum Ellipſim. </s>
              <s xml:id="echoid-s23128" xml:space="preserve">Soligitur aut in æquinoctiali cir-
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              culo, aut extra inuenitur. </s>
              <s xml:id="echoid-s23129" xml:space="preserve">ſi æquinoctialem circulum ambit, & </s>
              <s xml:id="echoid-s23130" xml:space="preserve">radijs gnomoneẽ feriat,rectam in quocunq; </s>
              <s xml:id="echoid-s23131" xml:space="preserve">pla
                <lb/>
              no lineã umbræ deſcribet, ideo in omnibus horologiorũ planis æqualibus æquinoctialis umbra per directam li-
                <lb/>
                <figure xlink:label="fig-514.01.336-01" xlink:href="fig-514.01.336-01a" number="135">
                  <description xml:id="echoid-description80" xml:space="preserve">A. ſectio parabole.
                    <lb/>
                  B. vestigium. C. parabole.
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                  G. ſectio ellipſis.
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                  D. ſectio hyperbole.
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                  E. vestigium F. hyperbole.</description>
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                  f g b 6 7 3 1 2 4 6 8 10
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                  f 1 2 3 4 5 6 7 8 9 10 11 g</variables>
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              neam deſignatur. </s>
              <s xml:id="echoid-s23132" xml:space="preserve">ratio est quoniam gnomonis apex eſt in æquionctialis plano, ideo gnomonis umbræ ab eo
                <lb/>
              plano mimme diſcedent æquinoctij tempore,& </s>
              <s xml:id="echoid-s23133" xml:space="preserve">propterea ideo a communi ſectione illius plani, & </s>
              <s xml:id="echoid-s23134" xml:space="preserve">horarij ter-
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              minabuntur. </s>
              <s xml:id="echoid-s23135" xml:space="preserve">quemadmodum experiundo diſces. </s>
              <s xml:id="echoid-s23136" xml:space="preserve">Sole igitur æquinoctialem circulum ambiente & </s>
              <s xml:id="echoid-s23137" xml:space="preserve">ad apicem
                <lb/>
                <note position="left" xlink:label="note-514.01.336-01" xlink:href="note-514.01.336-01a" xml:space="preserve">60</note>
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