Heron <Alexandrinus>, Heronis Alexandrini spiritalium liber

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            <s xml:id="echoid-s2174" xml:space="preserve">
              <pb o="111" file="0117" n="117" rhead="THEOREMATA SPIRITALIA."/>
            20. </s>
            <s xml:id="echoid-s2175" xml:space="preserve">in quo ſit inflexus ſiphon, cujus alterum crus tranſeat per fundum, al-
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            terum in tantum elevatum ſit ſupra iſtum fundum, quantum ad aquæ flu-
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            xum ſufficere videbitur, & </s>
            <s xml:id="echoid-s2176" xml:space="preserve">funi trochleæ 17. </s>
            <s xml:id="echoid-s2177" xml:space="preserve">alligetur pondus 19. </s>
            <s xml:id="echoid-s2178" xml:space="preserve">quod
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            ſolum ſit tam grave, ut valeat volvere cannam, & </s>
            <s xml:id="echoid-s2179" xml:space="preserve">ſecum trahere vas 20.
              <lb/>
            </s>
            <s xml:id="echoid-s2180" xml:space="preserve">Poſtea ſub centro fuſi adaptetur catinus
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              <figure xlink:label="fig-0117-01" xlink:href="fig-0117-01a" number="92">
                <image file="0117-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0117-01"/>
              </figure>
            21. </s>
            <s xml:id="echoid-s2181" xml:space="preserve">qui habeat canalem 22. </s>
            <s xml:id="echoid-s2182" xml:space="preserve">23. </s>
            <s xml:id="echoid-s2183" xml:space="preserve">cujus oſ-
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            culum immineat vaſi 20. </s>
            <s xml:id="echoid-s2184" xml:space="preserve">Ita obſervabi-
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            mus aquam, quæ fluxit per canalem H I,
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            circumvolvere rotam 5. </s>
            <s xml:id="echoid-s2185" xml:space="preserve">6. </s>
            <s xml:id="echoid-s2186" xml:space="preserve">7. </s>
            <s xml:id="echoid-s2187" xml:space="preserve">8. </s>
            <s xml:id="echoid-s2188" xml:space="preserve">quia ne-
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            ceſſe eſt aquâ cadente in concavitates
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            rotæ 9. </s>
            <s xml:id="echoid-s2189" xml:space="preserve">10. </s>
            <s xml:id="echoid-s2190" xml:space="preserve">11. </s>
            <s xml:id="echoid-s2191" xml:space="preserve">12. </s>
            <s xml:id="echoid-s2192" xml:space="preserve">rota circumvolvatur
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            propter gravitatem aquæ; </s>
            <s xml:id="echoid-s2193" xml:space="preserve">dumque illa
              <lb/>
            circumvolvitur, ferramenta CC eleva-
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            bunt ferramenta 3. </s>
            <s xml:id="echoid-s2194" xml:space="preserve">quæ dum ſuper cen-
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            tris cylindrorum volvuntur, depriment
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            extremitatem 4, indeque funes, qui per
              <lb/>
            crura fabrorum transmiſſi ſunt, quoque
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            trahentur, & </s>
            <s xml:id="echoid-s2195" xml:space="preserve">illorum brachia elevabunt.
              <lb/>
            </s>
            <s xml:id="echoid-s2196" xml:space="preserve">Mallei eorum per vices percutient incudem, & </s>
            <s xml:id="echoid-s2197" xml:space="preserve">quia radii rotæ ſunt vacui
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            (licet neceſſe ſit hæ c foramina eſſe parva, ut parum tantum aquæ per ea
              <lb/>
            fluat) defluet aqua in centrum fuſi, indeque fluet in vas 21. </s>
            <s xml:id="echoid-s2198" xml:space="preserve">& </s>
            <s xml:id="echoid-s2199" xml:space="preserve">hinc porro in
              <lb/>
            vas 20. </s>
            <s xml:id="echoid-s2200" xml:space="preserve">per canalem 22. </s>
            <s xml:id="echoid-s2201" xml:space="preserve">23. </s>
            <s xml:id="echoid-s2202" xml:space="preserve">hoc ubi fuerit repletum, ob gravitatem ſuam
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            deſcendet, ſecumque trahet pondus 19. </s>
            <s xml:id="echoid-s2203" xml:space="preserve">& </s>
            <s xml:id="echoid-s2204" xml:space="preserve">vertet cannam 13. </s>
            <s xml:id="echoid-s2205" xml:space="preserve">14. </s>
            <s xml:id="echoid-s2206" xml:space="preserve">circa cla-
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            vum fixum in 15. </s>
            <s xml:id="echoid-s2207" xml:space="preserve">& </s>
            <s xml:id="echoid-s2208" xml:space="preserve">conſequenter vertetur faber E, & </s>
            <s xml:id="echoid-s2209" xml:space="preserve">apparebit ille por-
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            tare ferrum ad fervefaciendum illud in focum, facietque interea ſuum ne-
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            gotium, ita ut dum ſe vertit, ponat ferrum in ebullitionem aquæ, quæ vere
              <lb/>
            ebulliet': </s>
            <s xml:id="echoid-s2210" xml:space="preserve">nam dum vertitur canna 13. </s>
            <s xml:id="echoid-s2211" xml:space="preserve">14. </s>
            <s xml:id="echoid-s2212" xml:space="preserve">clauditur canalis H I, & </s>
            <s xml:id="echoid-s2213" xml:space="preserve">hinc
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            fiet, ut rotâ non amplius volutâ fabri laborare ceſſent: </s>
            <s xml:id="echoid-s2214" xml:space="preserve">quia vero foramen
              <lb/>
            cannæ in vertendo coïncidit cum canali L, aqua ſaliet in catinum N per
              <lb/>
            canalem L O M, & </s>
            <s xml:id="echoid-s2215" xml:space="preserve">ebulliet: </s>
            <s xml:id="echoid-s2216" xml:space="preserve">ſed memineris ut caveas, ne aqua ebulliens
              <lb/>
            ſuos terminos transgrediatur, inque cum finem fac foramina, per quæ di-
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            labatur. </s>
            <s xml:id="echoid-s2217" xml:space="preserve">Interea evacuabitur vas 20. </s>
            <s xml:id="echoid-s2218" xml:space="preserve">per ſuum vel diabetem, vel ſiphonem,
              <lb/>
            perinde enim eſt, & </s>
            <s xml:id="echoid-s2219" xml:space="preserve">pondus 19. </s>
            <s xml:id="echoid-s2220" xml:space="preserve">denuo elevabit vas 20. </s>
            <s xml:id="echoid-s2221" xml:space="preserve">& </s>
            <s xml:id="echoid-s2222" xml:space="preserve">ſic canna 13. </s>
            <s xml:id="echoid-s2223" xml:space="preserve">& </s>
            <s xml:id="echoid-s2224" xml:space="preserve">
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            14. </s>
            <s xml:id="echoid-s2225" xml:space="preserve">converſa faber E denuo ponet ferrum ſuper incudem, & </s>
            <s xml:id="echoid-s2226" xml:space="preserve">canalis H I
              <lb/>
            rurſus aperietur. </s>
            <s xml:id="echoid-s2227" xml:space="preserve">Qui faciet volvere rotam, & </s>
            <s xml:id="echoid-s2228" xml:space="preserve">ſic fabri rurſum laborabunt,
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            qui feriendo ſuper cono P, id eſt ſuper ſolido, quia cavus erit fere totus
              <lb/>
            aqua repletus per canaliculum QR, quilibet ictus mallei faciet exilire
              <lb/>
            aquam. </s>
            <s xml:id="echoid-s2229" xml:space="preserve">Superficies enim ſolidi non tanget ſuperficiem cavi, quia, ut dixi,
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            ſuſtentatur ab elaterio. </s>
            <s xml:id="echoid-s2230" xml:space="preserve">Et hoc fuit nobis propoſitum.</s>
            <s xml:id="echoid-s2231" xml:space="preserve"/>
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