Heron <Alexandrinus>, Heronis Alexandrini spiritalium liber

Table of figures

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            <s xml:id="echoid-s294" xml:space="preserve">
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            dinem, five alterum crus altero multo majus ſit: </s>
            <s xml:id="echoid-s295" xml:space="preserve">non enim in hoc cauſſa
              <lb/>
            eſt, cur humidum quieſcat, ſed in eo, quod ipſius oſcula æqualiter ja-
              <lb/>
            ceant. </s>
            <s xml:id="echoid-s296" xml:space="preserve">Quo modo igitur eo ſuſpenſo humidum non defluit ob propriam
              <lb/>
            gravitatem, cum ſubjectum aërem leviorem habeat? </s>
            <s xml:id="echoid-s297" xml:space="preserve">quoniam locus
              <lb/>
            omnino vacuus eſſe non poteſt: </s>
            <s xml:id="echoid-s298" xml:space="preserve">ſi enim debet humidum defluere, prius
              <lb/>
            impleri oportet ſuperiorem locum ſiphonis, in quem aër ingredi nequit.
              <lb/>
            </s>
            <s xml:id="echoid-s299" xml:space="preserve">Quod ſi quis ſuperiorem ſiphonis locum perforet ſtatim effluet humidum,
              <lb/>
            aëre ſuccedente: </s>
            <s xml:id="echoid-s300" xml:space="preserve">ſed antequam perforetur, humidum, quod eſt in ſi-
              <lb/>
            phone ſubjecto aëri inſidens ipſum propulſat, is autem non habens, quo
              <lb/>
            ſecedat progredi humidum non ſinit: </s>
            <s xml:id="echoid-s301" xml:space="preserve">verum cum per foramen locum
              <lb/>
            obtinuit, quo ſecedat aër, tum aquæ gravitatem non ſerens ſecedit. </s>
            <s xml:id="echoid-s302" xml:space="preserve">Hanc
              <lb/>
            eandem ob cauſſam & </s>
            <s xml:id="echoid-s303" xml:space="preserve">vinum ſiphone ſurſum ore præter naturam attrahi-
              <lb/>
            mus: </s>
            <s xml:id="echoid-s304" xml:space="preserve">excipientes enim aërem, qui eſt in ſiphone, pleniores, quam antea
              <lb/>
            efficimur & </s>
            <s xml:id="echoid-s305" xml:space="preserve">evellimus conjunctum ipſi aërem: </s>
            <s xml:id="echoid-s306" xml:space="preserve">hic vero eum qui à princi-
              <lb/>
            pio, quouſque ad vini ſuperficiem vacuatio fiat, & </s>
            <s xml:id="echoid-s307" xml:space="preserve">tunc vinum evulſum
              <lb/>
            ſecedit in locum exinanitum ſiphonis: </s>
            <s xml:id="echoid-s308" xml:space="preserve">alius enim locus non eſt, in quem
              <lb/>
            ſecedat; </s>
            <s xml:id="echoid-s309" xml:space="preserve">ob hanc cauſſam & </s>
            <s xml:id="echoid-s310" xml:space="preserve">ſurſum præter naturam fertur: </s>
            <s xml:id="echoid-s311" xml:space="preserve">alioqui quie-
              <lb/>
            ſcet humidum in ſiphone, quando in una ſuperficie ſphærica conſtituatur,
              <lb/>
            cujus centrum eſt idem, quod terræ centrum: </s>
            <s xml:id="echoid-s312" xml:space="preserve">quoniam ſi humidi alicujus
              <lb/>
            ſuperficies ſphærica ſit, centrum habens idem, quod terra, quieſcit: </s>
            <s xml:id="echoid-s313" xml:space="preserve">ſi
              <lb/>
            enim fieri poteſt, non quieſcat, ergo ipſa mota quieſcet: </s>
            <s xml:id="echoid-s314" xml:space="preserve">quieſcat igitur: </s>
            <s xml:id="echoid-s315" xml:space="preserve">
              <lb/>
            erit ſphærica ſuperficies centrum
              <lb/>
              <figure xlink:label="fig-0018-01" xlink:href="fig-0018-01a" number="5">
                <image file="0018-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0018-01"/>
              </figure>
            idem, quod terra, habens, & </s>
            <s xml:id="echoid-s316" xml:space="preserve">prio-
              <lb/>
            rem ſuperficiem ſecabit: </s>
            <s xml:id="echoid-s317" xml:space="preserve">idem nam-
              <lb/>
            que humidum ab aliquo communi
              <lb/>
            alium atque alium occupavit lo-
              <lb/>
            cum: </s>
            <s xml:id="echoid-s318" xml:space="preserve">utræque igitur ſuperficies per
              <lb/>
            terræ centrum plano aliquo ſecen-
              <lb/>
            tur, & </s>
            <s xml:id="echoid-s319" xml:space="preserve">faciant lineas in ſuperficie-
              <lb/>
            bus, circulorum circumferentias,
              <lb/>
            quæ idem centrum habeant, quod
              <lb/>
            terra, videlicet A B C, F B D; </s>
            <s xml:id="echoid-s320" xml:space="preserve">du-
              <lb/>
            caturque BG: </s>
            <s xml:id="echoid-s321" xml:space="preserve">quare BG æqualis
              <lb/>
            eſt utrique ipſarum G F, G A:
              <lb/>
            </s>
            <s xml:id="echoid-s322" xml:space="preserve">quod eſt abſurdum: </s>
            <s xml:id="echoid-s323" xml:space="preserve">ergo quieſcat
              <lb/>
            neceſſe eſt.</s>
            <s xml:id="echoid-s324" xml:space="preserve"/>
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