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

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s id="s.000206">
                <pb pagenum="16" xlink:href="025/01/020.jpg"/>
              accommodant v.g. ad explicandas huiuſmodi paſſiones planetarum, puta
                <lb/>
              Martis, nonnulli cum Ptolemæo Epicyclum poſuerunt, alij cum Tycone
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              circulum cuius centrum in Sole ſemper fixum eſſet; alij cum Copernico
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              orbem excentricum circa Solem immobilem in centro mundi; his autem
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              ſtatutis, ac definitis circulorum diametris; periodis, ſitu, &c. </s>
              <s id="s.000207">omnes ob­
                <lb/>
              ſervationes ad prædicta ſyſtemata, vt dixi, accommodant, licèt vt pluri­
                <lb/>
              mum, aliquæ parum congruant. </s>
              <s id="s.000208">Hinc non mirum, ſi fortè ſupponant, Mar­
                <lb/>
              tem pluribus gradibus retrogredi, quam re ipſa retrogrediatur. </s>
              <s id="s.000209">Sed iam ad
                <lb/>
              alia tua poſtulata gradum facio. </s>
            </p>
            <p type="main">
              <s id="s.000210">
                <emph type="italics"/>
              Auguſtin.
                <emph.end type="italics"/>
              </s>
              <s id="s.000211"> Suſtine parumper, vnum exciderat, quod jam in mentem
                <lb/>
              venit; dixiſti enim paulò ante, ni fallor, Solem in Perigæo ſuum orbem
                <lb/>
              citiùs, in Apogæo tardiùs conficere; dies igitur noſtri ſunt inæquales. </s>
            </p>
            <p type="main">
              <s id="s.000212">
                <emph type="italics"/>
              Antim.
                <emph.end type="italics"/>
              </s>
              <s id="s.000213"> Novum profectò dictu non eſt; nempe in antiqua etiam hypo­
                <lb/>
              theſi Ptolemaica, ex duplici capite illa dierum inæqualitas petitur; primò
                <lb/>
              ex eo quod Sol in Apogæo excentrici in conſequentia versùs ortum videa­
                <lb/>
              tur tardiùs promoveri, contra verò velociùs in Perigæo ; igitur in Apogæo
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              citiùs orbem ſuum abſolvit, diurnum ſcilicet, ab ortu ad occaſum, tardiùs
                <lb/>
              verò in Perigæo: Igitur circa Solſtitium æſtivum, ex hoc capite ſunt bre­
                <lb/>
              viores, & circa brumale, longiores. </s>
              <s id="s.000214">Secundò ex aſcenſione recta & obli­
                <lb/>
              qua Eclipticæ, nempe æquali tempore major arcus aſcendit obliquæ, quàm
                <lb/>
              rectæ; Igitur Sol in Solſtitiis in quibus eſt aſcenſio recta, tardiùs, in Æqui­
                <lb/>
              noctiis, in quibus eſt obliqua velociùs orbem diurnum abſolvit. </s>
              <s id="s.000215">Sed his
                <lb/>
              rejectis, ex alio capite, prædictam inæqualitatem etiam duci poſſe dicimus;
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              ſcilicet ex inæqualibus circulis, ſeu ſpiris à Sole decurſis, cum eodem ſci­
                <lb/>
              licet velocitatis gradu; vnde reverà fit, vt Apogæus majorem, & tardiùs,
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              Perigæus verò breviorem & citiùs orbem decurrat; Vellem, vt fideli fune­
                <lb/>
              pendulo inæqualitatem illam probares, numerato ſcilicet vibrationum nu­
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              mero, idque ſub initium Iulij & Ianuarij: Tunc enim eſt aliqua, etiam for­
                <lb/>
              tè ſenſibilis circulorum in æqualitas, igitur & dierum; & plures vibratio­
                <lb/>
              nes numerantur intra ſpatium ſemihoræ ſub initium Iulij, Sole in Apogæo
                <lb/>
              exiſtente, quàm ſub initium Ianuarij, quo tempore Sol in Perigæo ver­
                <lb/>
              ſatur; & his vibrationibus, crede mihi, aliquam differentiam invenires,
                <lb/>
              minimam certè, at, niſi ſallor, ſenſibilem. </s>
            </p>
            <p type="main">
              <s id="s.000216">
                <emph type="italics"/>
              Auguſtin.
                <emph.end type="italics"/>
              </s>
              <s id="s.000217"> Si hæc cum veritate conſentiant, nullus dubitat, quin Aſtro­
                <lb/>
              nomos plurimùm tibi obſtrinxeris, ſed antequam meis poſtulatis facias
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              ſatis, ſi tibi grave non eſſet, vellem, vt rude ſaltem tui ſyſtematis Solaris
                <lb/>
              ſchema mihi exhiberes. </s>
            </p>
            <p type="main">
              <s id="s.000218">
                <emph type="italics"/>
              Antim.
                <emph.end type="italics"/>
              </s>
              <s id="s.000219"> Prolixior reverà eſſem, ſi rem hanc, vt par eſt, explicandam
                <lb/>
              ſuſciperem; ſed quandoquidem rudiorem dumtaxat delineationem fla­
                <lb/>
              gitas, eò libentiùs tibi morem geram. </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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