Heron <Alexandrinus>, Heronis Alexandrini spiritalium liber

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              <pb o="107" file="0113" n="113" rhead="THEOREMATA SPIRITALIA."/>
            licet eam, quæ eſt ſupra trochleam 4. </s>
            <s xml:id="echoid-s2070" xml:space="preserve">alligetur anſa vaſis 7. </s>
            <s xml:id="echoid-s2071" xml:space="preserve">quod tamen
              <lb/>
            adeo leve ſit, ut facile à pondere 6. </s>
            <s xml:id="echoid-s2072" xml:space="preserve">elevari poſſit: </s>
            <s xml:id="echoid-s2073" xml:space="preserve">poſtea intra vas FG
              <lb/>
            adaptetur tubus ſpiritalis 9. </s>
            <s xml:id="echoid-s2074" xml:space="preserve">qui intra crateram 10. </s>
            <s xml:id="echoid-s2075" xml:space="preserve">infundat aquam, ex
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            qua derivetur canalis 10. </s>
            <s xml:id="echoid-s2076" xml:space="preserve">11. </s>
            <s xml:id="echoid-s2077" xml:space="preserve">eidemque vaſiimponatur etiam inflexus ſi-
              <lb/>
            phon, vel tubus ſpiritalis 14. </s>
            <s xml:id="echoid-s2078" xml:space="preserve">cujus unum crus intret in baſim ABCDE,
              <lb/>
            alterum exiſtat in tantum ſupra fundum iſtius vaſis, quantum ad fluxum
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            aquæ ſufficere putabitur, & </s>
            <s xml:id="echoid-s2079" xml:space="preserve">ſimile tubi 9. </s>
            <s xml:id="echoid-s2080" xml:space="preserve">& </s>
            <s xml:id="echoid-s2081" xml:space="preserve">huic baſi imponatur ſiphon
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            inflexus 15, vel etiam alter, ſi neceſſitas requiſierit, vel tubus ſpiritalis 17.
              <lb/>
            </s>
            <s xml:id="echoid-s2082" xml:space="preserve">Hoc facto obſervabitur, quod aqua defluens per canalem RSQQ, quia
              <lb/>
            vas P altius ſitum eſt, aſcendet in urnas, quas humeris ſuis portant fluvii; </s>
            <s xml:id="echoid-s2083" xml:space="preserve">
              <lb/>
            hanc illi aquam in vas F G effundent, hoc vero dum repletur per ratio-
              <lb/>
            nes adductas ab Herone in primo & </s>
            <s xml:id="echoid-s2084" xml:space="preserve">ſecundo Theoremate, aqua per ſi-
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            phonem inflexum 14. </s>
            <s xml:id="echoid-s2085" xml:space="preserve">defluet@ in baſim ABCDE, & </s>
            <s xml:id="echoid-s2086" xml:space="preserve">aër, qui in ea eſt,
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            quaſi comprimetur, cum aliud corpus eiſuperveniat, & </s>
            <s xml:id="echoid-s2087" xml:space="preserve">quia fluvii vaſis
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            majorem copiam aquæ effundunt, ſe elevabit, & </s>
            <s xml:id="echoid-s2088" xml:space="preserve">tubus ſpiritalis 9. </s>
            <s xml:id="echoid-s2089" xml:space="preserve">ipſe
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            etiam effundet aquam in crateram 10. </s>
            <s xml:id="echoid-s2090" xml:space="preserve">& </s>
            <s xml:id="echoid-s2091" xml:space="preserve">aqua defluens inde per canalem
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            10. </s>
            <s xml:id="echoid-s2092" xml:space="preserve">11. </s>
            <s xml:id="echoid-s2093" xml:space="preserve">delabetur in vas 7. </s>
            <s xml:id="echoid-s2094" xml:space="preserve">quod repletum per gravitatem ſuam deſcendet,
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            & </s>
            <s xml:id="echoid-s2095" xml:space="preserve">eodem modo volvetur baculus T V, obturabiturque canalis in ſolido
              <lb/>
            S: </s>
            <s xml:id="echoid-s2096" xml:space="preserve">unde eveniet ut fluvii ceſſent effundere aquam, & </s>
            <s xml:id="echoid-s2097" xml:space="preserve">dum caput regulæ
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            11. </s>
            <s xml:id="echoid-s2098" xml:space="preserve">deprimetur, quia poſitum eſt in æquilibrio ſuper tubum perforatum,
              <lb/>
            emerget ſupra aquam Triton, & </s>
            <s xml:id="echoid-s2099" xml:space="preserve">foramen tubi X conveniet cum forami-
              <lb/>
            ne tubi, & </s>
            <s xml:id="echoid-s2100" xml:space="preserve">aër compreſſus in baſe ſentiens exitum apertum erumpet cum
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            impetu, facietque ſonare concham, quam in ore habebit Triton, & </s>
            <s xml:id="echoid-s2101" xml:space="preserve">
              <lb/>
            quando baſis erit repleta aqua, evacuabit illam inflexus ſiphon 15. </s>
            <s xml:id="echoid-s2102" xml:space="preserve">& </s>
            <s xml:id="echoid-s2103" xml:space="preserve">tu-
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            bus ſpiritalis 17. </s>
            <s xml:id="echoid-s2104" xml:space="preserve">& </s>
            <s xml:id="echoid-s2105" xml:space="preserve">baſis denuo aëre replebitur perforamen conchæ Tri-
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            tonis, adeo ut tubo ſpiritali 13. </s>
            <s xml:id="echoid-s2106" xml:space="preserve">evacuante vas 5. </s>
            <s xml:id="echoid-s2107" xml:space="preserve">pondus 6. </s>
            <s xml:id="echoid-s2108" xml:space="preserve">ſurſum trahet
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            evacuatum vas, & </s>
            <s xml:id="echoid-s2109" xml:space="preserve">canalis aquæ denuo fluviis aperietur, & </s>
            <s xml:id="echoid-s2110" xml:space="preserve">Triton per
              <lb/>
            gravitatem ſuam ſe denuo ſubmerget, hæque viciſſitudines ſemper con-
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            tingent, quoad canalis Ofluet: </s>
            <s xml:id="echoid-s2111" xml:space="preserve">& </s>
            <s xml:id="echoid-s2112" xml:space="preserve">hoc eſt quod propoſuimus.</s>
            <s xml:id="echoid-s2113" xml:space="preserve"/>
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