Casati, Paolo, De igne dissertationes physicae, 1686

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            <s xml:id="echoid-s18730" xml:space="preserve">
              <pb o="152" file="0580" n="580" rhead="Diſſertatio Quinta."/>
            Planetarum globos, etiamſi repugnantes, ſuumque motum
              <lb/>
            ab Occaſu in Ortum molientes, impellat ab Ortu in Occaſum?
              <lb/>
            </s>
            <s xml:id="echoid-s18731" xml:space="preserve">Quinimmò ex diurnâ Firmamenti (quod ſolidum ſtatuere,
              <lb/>
            licet) circa ſuum axem converſione incluſum corpus tenue ac
              <lb/>
            fluidum, cujuſmodi eſt æther atque aër, univerſum pariter
              <lb/>
            convolui, à probabilitate ſejunctum atque remotum videtur: </s>
            <s xml:id="echoid-s18732" xml:space="preserve">
              <lb/>
            quandoquidem ſtellas fixas præ Saturno longè altiores eſſe,
              <lb/>
            quippe quæ interiecto inter nos & </s>
            <s xml:id="echoid-s18733" xml:space="preserve">illas Saturni globo Eclipſim
              <lb/>
            patiuntur, compertum eſt. </s>
            <s xml:id="echoid-s18734" xml:space="preserve">Saturni & </s>
            <s xml:id="echoid-s18735" xml:space="preserve">Solis à telluris centro
              <lb/>
            diſtantię ex ſatis communi Aſtronomorum opinione ſtatuun-
              <lb/>
            tur in Ratione ferè decuplâ: </s>
            <s xml:id="echoid-s18736" xml:space="preserve">Solis autem diſtantia, juxta cele-
              <lb/>
            berrimum Hipparchi Problema ex Lunæ Dichotomiâ elicitur; </s>
            <s xml:id="echoid-s18737" xml:space="preserve">
              <lb/>
            & </s>
            <s xml:id="echoid-s18738" xml:space="preserve">V Vendelino quidem Dichotomiam contingere opinanti, ubi
              <lb/>
            Luna à Sole diſceſſerit intervallo gr. </s>
            <s xml:id="echoid-s18739" xml:space="preserve">89. </s>
            <s xml:id="echoid-s18740" xml:space="preserve">min. </s>
            <s xml:id="echoid-s18741" xml:space="preserve">45.</s>
            <s xml:id="echoid-s18742" xml:space="preserve">, Sol removetur
              <lb/>
            à tellure ſemidiametris terreſtribus ſaltem 13740. </s>
            <s xml:id="echoid-s18743" xml:space="preserve">Ex accura-
              <lb/>
            tiſſimâ verò obſervatione cum Dichotomia acciderit, Lunâ à
              <lb/>
            Sole remotâ gr. </s>
            <s xml:id="echoid-s18744" xml:space="preserve">89. </s>
            <s xml:id="echoid-s18745" xml:space="preserve">min. </s>
            <s xml:id="echoid-s18746" xml:space="preserve">34. </s>
            <s xml:id="echoid-s18747" xml:space="preserve">ſec. </s>
            <s xml:id="echoid-s18748" xml:space="preserve">50.</s>
            <s xml:id="echoid-s18749" xml:space="preserve">, elicit Ricciolius Solis à terrâ
              <lb/>
            diſtantiam ſemid. </s>
            <s xml:id="echoid-s18750" xml:space="preserve">terr. </s>
            <s xml:id="echoid-s18751" xml:space="preserve">8333. </s>
            <s xml:id="echoid-s18752" xml:space="preserve">Quare à veritate non procul
              <lb/>
            abeſſe cenſendi ſunt, qui inter tellurem atque ſtellas fixas nu-
              <lb/>
            merant ſemid. </s>
            <s xml:id="echoid-s18753" xml:space="preserve">terr. </s>
            <s xml:id="echoid-s18754" xml:space="preserve">100000. </s>
            <s xml:id="echoid-s18755" xml:space="preserve">Demus nunc ætheris partes Fir-
              <lb/>
            mamento proximas ex hujus convolutione motum concipere,
              <lb/>
            non continò etiam ad infimas, & </s>
            <s xml:id="echoid-s18756" xml:space="preserve">ad ipſum Lunæ globum,
              <lb/>
            immò & </s>
            <s xml:id="echoid-s18757" xml:space="preserve">ad aërem infra Lunam, impulſum propagari, om-
              <lb/>
            niumque motum iſochronum fieri, concedendum eſt. </s>
            <s xml:id="echoid-s18758" xml:space="preserve">Quoties
              <lb/>
            enim vento ſublimi agitatum aërem cognoſcimus ex motu
              <lb/>
            nubeculæ, populeas autem frondes, tam facilè tremulas, quie-
              <lb/>
            ſcere immotas videmus, nec auram vultus noſtros lambentem
              <lb/>
            percipimus? </s>
            <s xml:id="echoid-s18759" xml:space="preserve">aër nimirum ſuperior inferiùs poſitum non urget,
              <lb/>
            neque facilè ſecum trahit nullo nexu cohærentem præ fluidi-
              <lb/>
            tate. </s>
            <s xml:id="echoid-s18760" xml:space="preserve">Si igitur in tanta vicinitate venti, ad nos aëris motus non
              <lb/>
            pervenit; </s>
            <s xml:id="echoid-s18761" xml:space="preserve">motus ætheris quantumvis velociſſimus propè Firma-
              <lb/>
            mentum, impulſum propagabit deorſum ultra tricies mille,
              <lb/>
            myriadas, hoc eſt, ut vulgo loquimur, ad trecentos milliones
              <lb/>
            milliarium Italicorum, ut Cometas infra Lunam poſitos, aut
              <lb/>
            paulo altiùs, in gyrum ducat diurnâ converſione? </s>
            <s xml:id="echoid-s18762" xml:space="preserve">Mihi certè
              <lb/>
            fidem omnem ſuperare videtur, ſi fluidi corporis naturam,
              <lb/>
            attendamus.</s>
            <s xml:id="echoid-s18763" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s18764" xml:space="preserve">Grad. </s>
            <s xml:id="echoid-s18765" xml:space="preserve">Non defint fortaſſe, qui aſſerant, ejufdem Intelligen-
              <lb/>
            tiæ, quæ Firmamento præeſt, munus eſſe, univerſum Syſtema
              <lb/>
            Cœleſte, atque ſupremam ſinitimi aëris elementaris regionem,
              <lb/>
            in quâ Cometæ accenduntur, ſimul convolvere, cum </s>
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