Schott, Gaspar, Mechanica hydraulico-pneumatica. Pars I. Mechanicae Hydraulico-pnevmaticae Theoriam continet. , 1657

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              <s>
                <pb xlink:href="051/01/093.jpg" pagenum="62"/>
              culentiſſimus, excogitatum fuit. </s>
              <s>Eodem enim prorſus modo
                <lb/>
              in terræ concuſſione flamma ex aliqua ſubterranea fornace, vel
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              interno calore, per venulam aliquam nitri aut ſulphuris ſerpit,
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              donec perveniat ad locum, in quo maiorem huiuſce materiæ
                <lb/>
              copiam inveniat; quâ ſubitò accenſa & rarefactâ, dum maio­
                <lb/>
              rem quærit locum, ſibi impoſitas concutit, & diſjicit non rarò,
                <lb/>
              moles. </s>
              <s>Sæpe etiam iam antea accenſus in terræ viſceribus ignis,
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              dum nova augetur aliunde attracta materia, montes ſibi impoſi­
                <lb/>
                <arrow.to.target n="marg122"/>
                <lb/>
              tos concutit, finditque, vt non ſemel audivi, vidique in Ætna Si­
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              ciliæ, duorum annorum accola olim, & nunc hoc ipſo anno 1654.
                <lb/>
              quo hæc ſcribo, hîc Romæ, quam (raro exemplo) concuſſit mo­
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              tus ille ingens, qui tantam Soræ ſtragem intulit, & Romam hinc
                <lb/>
              inde Neapolim, omnes que interiacentes regiones tremefecit. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg119"/>
                <emph type="italics"/>
              Rarefactio­
                <lb/>
              nis vis in
                <lb/>
              bombardis.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg120"/>
                <emph type="italics"/>
              Rarefactio­
                <lb/>
              nis vis in
                <lb/>
              cuniculis
                <lb/>
              ſubterra­
                <lb/>
              neis.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg121"/>
                <emph type="italics"/>
              Rarefactio­
                <lb/>
              nis vis in
                <lb/>
              terræ mo­
                <lb/>
              tibus.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg122"/>
                <emph type="italics"/>
              Terræmo­
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              tus Romæ
                <lb/>
              anno
                <emph.end type="italics"/>
              1654.</s>
            </p>
            <p type="main">
              <s>
                <emph type="center"/>
              §. II.
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              </s>
            </p>
            <p type="main">
              <s>
                <emph type="center"/>
              Alia Rarefactionis Exempla.
                <emph.end type="center"/>
                <lb/>
                <arrow.to.target n="marg123"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg123"/>
                <emph type="italics"/>
              Rarefactio­
                <lb/>
              nis exempla
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              duo.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>NArrat P. Nicolaus Cabæus lib. 4. Meteor. Ariſt. text. 12.
                <expan abbr="q.">que</expan>
              1.
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              vidiſſe ſe marmoreum vas maximum atque duriſſimum ab
                <lb/>
              aqua conglaciata diſciſſum, eò quòd
                <expan abbr="cõgelatione">congelatione</expan>
              rarefactæ fue­
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              rint aliquæ internæ partes aquæ: factà enim illâ ſubitâ congela­
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              tione, obſtiterunt attenuationi & rarefactioni partium latera va­
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              ſis,
                <expan abbr="ceſſitq́ue">ceſſitque</expan>
              durities vehementiæ rarefactionis, & fractum eſt
                <lb/>
              vas, quod non diſrupiſſent centum juga boum, ſi in diverſas par­
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              tes traxiſſent. </s>
              <s>Idem Cabæus ibidem aſſerit, ſe vidiſſe columnam
                <lb/>
              marmoream, quam tres homines dilatatis brachijs ſimul non
                <lb/>
              poterant complecti, quamque mille juga boum, ſi in diverſas
                <lb/>
              partes, toto juncto impetu traxiſſent, frangere non potuiſſent,
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              fractam tamen prorſus mediam atque truncatam, eò quòd ligna
                <lb/>
              quædam columnæ illi proxima fuerint combuſta, ideoque ex vi­
                <lb/>
              cino calore ſpiritulus aliquis in marmore incluſus intus in meati­
                <lb/>
              bus fuerit rarefactus, & ex rarefactione maiorem ſibi
                <expan abbr="locũ">locum</expan>
              quæ­
                <lb/>
              ſiverit. </s>
            </p>
            <p type="main">
              <s>Notum jam pœnè eſt omnibus, quod refert Petrus Caſtel­
                <lb/>
              lus in Libello de Incendio Veſuvij Italicè conſcripto, & exipſo
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              Kircherus lib. 3. Artis Magnet, part. 2. cap. 3. circa finem, de </s>
            </p>
          </chap>
        </body>
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