Fabri, Honoré, Dialogi physici in quibus de motu terrae disputatur, 1665

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      <text>
        <body>
          <chap>
            <p type="main">
              <s id="s.000106">
                <pb pagenum="8" xlink:href="025/01/012.jpg"/>
              Solis motus ſimpliciſſimus ſit. </s>
              <s id="s.000107">Pati modo cogita Solem ſimul inclinari
                <lb/>
              ab Apogeo ad Perigeum, & viciſſim, hæc ſecunda determinatio, vel in­
                <lb/>
              clinatio ſimplici motui non obeſt, vt patet: In hoc porrò motu, Ecliptica
                <lb/>
              etiam moueri fingitur circa Axem mundi, ac proinde Eclipticæ ſectio in
                <lb/>
              Solari globo eadem ſemper eſt; denique, finge, Solem circa ſuum cen­
                <lb/>
              trum ita revolvi 27. circiter dierum ſpatio, ab ortu in occaſum, ratione il­
                <lb/>
              lius hemiſphærij, quod ad terram ſpectat, vt axis, circa quem voluitur, in­
                <lb/>
              clinatus ſit ad Eclipticæ planum, & ſibi ſemper parallelus; quod ſanè ſim­
                <lb/>
              plicitatem motus non deſtruit; ſic enim ſæpè ac ſæpiùs globos projicimus;
                <lb/>
              imò hic naturalis eſt globorum motus. </s>
            </p>
            <p type="main">
              <s id="s.000108">
                <emph type="italics"/>
              Auguſtinus.
                <emph.end type="italics"/>
              </s>
              <s id="s.000109"> Duo ſunt motus, ni fallor, orbis, ſcilicet, & centri ſimplex
                <lb/>
              igitur motus non eſt. </s>
            </p>
            <p type="main">
              <s id="s.000110">
                <emph type="italics"/>
              Antimus.
                <emph.end type="italics"/>
              </s>
              <s id="s.000111"> Igitur motus naturalis, quo corpus grave, v.g. globus fertur
                <lb/>
              deorſum non eſt motus ſimplex, ſed mixtus, quod nemo dixerit, cum ſim­
                <lb/>
              pliciſſimus ſit, vtpote ab eodem principio, ſcilicet à gravitate: ſi enim de­
                <lb/>
              mittas globum, primò quidem per planum inclinatum, ex quo inde per li­
                <lb/>
              berum aëra perpendiculariter deſcendat, videbis illicò duos illos motus
                <lb/>
              quos dicis, centri & orbis; qui tamen reverà duo motus non ſunt, ſed vnus
                <lb/>
              ab vna eademque gravitate profectus. </s>
            </p>
            <p type="main">
              <s id="s.000112">
                <emph type="italics"/>
              Auguſtinus.
                <emph.end type="italics"/>
              </s>
              <s id="s.000113"> Nonnulli ex veſtris, vt ſalvent paralleliſmum illius axis, cir­
                <lb/>
              ca quem Sol revolvitur, adhibent alium motum revolutionis annuum cir­
                <lb/>
              ca Solis axem, axi Eclipticæ parallelum. </s>
            </p>
            <p type="main">
              <s id="s.000114">
                <emph type="italics"/>
              Antimus.
                <emph.end type="italics"/>
              </s>
              <s id="s.000115"> Ita prorſus. </s>
              <s id="s.000116">Sed eſt motus fictus, eo fine, vt meliùs res illa in­
                <lb/>
              telligatur: vt enim terra circa axem axi Elipticæ parallelum revolui dici­
                <lb/>
              tur annuo motu, in veſtra hypotheſi ab occaſu ad ortum, ratione hemi­
                <lb/>
              ſphærij ad Solem verſi, vt axem, circa quem fit motus diurnus, ſemper pa­
                <lb/>
              rallelum ſervet, ita prorſus ſolaris globus revolui dicendus eſt annuo mo­
                <lb/>
              tu, ad prædictum phœnomenum Axis paralleli ſalvandum; ſed vtrimque
                <lb/>
              hic motus fictitius eſt, cùm ſimplex turbinationis motus ſufficiat, circa
                <lb/>
              Axem inclinatum ad planum Eclipticæ, ſemper ſibi ipſi parallelum. </s>
              <s id="s.000117">Ana­
                <lb/>
              logiam habes in acu magnetica, quæ cum pixide ſua ita movetur, vt ſine
                <lb/>
              novo motu, ſibi parallela ſemper maneat. </s>
            </p>
            <p type="main">
              <s id="s.000118">
                <emph type="italics"/>
              Auguſtin.
                <emph.end type="italics"/>
              </s>
              <s id="s.000119"> Igitur non tres, aut quatuor motus in
                <expan abbr="nõſtra">noſtra</expan>
              hypotheſi ſta­
                <lb/>
              tuendi ſunt, vt ſupra dicebas; cum vnus duntaxat, eo quo explicas modo
                <lb/>
              ſufficiat: cur ergo quatuor neceſſarios eſſe fingis? </s>
            </p>
            <p type="main">
              <s id="s.000120">
                <emph type="italics"/>
              Antim.
                <emph.end type="italics"/>
              </s>
              <s id="s.000121"> Iuxta morem veſtrorum, & aliorum locutus ſum, qui prædictos
                <lb/>
              motus diſtingunt; fateor tamen, in veſtra hypotheſi, duos motus ſuffice­
                <lb/>
              re, alterum turbinationis in terreſtri globo, ſervato, vt dixi, paralleliſmo
                <lb/>
              Axis; alterum ſimplicis revolutionis in Sole, circa Axem pariter inclina­
                <lb/>
              tum, vt dixi, ad planum Eclipticæ. </s>
              <s id="s.000122">In noſtra verò vnus duntaxat motus
                <lb/>
              ſufficit turbinationis, circa axem pariter inclinatum ad planum Eclipticæ,
                <lb/>
              & ſibi ſemper parallelum, cum gemina illa inclination ereciproca, in Bo­
                <lb/>
              ream, & Auſtrum, & ſurſum atque deorſum; ſic turbo actus, orbes ſuos
                <lb/>
              ita deſcribit, vt aliquando majores, aliquando minores ſint; quod certè,
                <lb/>
              vt dixi, ſimplicitati motus turbinationis non obſtat: Ex his autem, vt </s>
            </p>
          </chap>
        </body>
      </text>
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