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

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    <archimedes>
      <text>
        <body>
          <chap>
            <pb pagenum="208" xlink:href="025/01/222.jpg"/>
            <figure id="id.025.01.222.1.jpg" xlink:href="025/01/222/1.jpg" number="76"/>
            <p type="main">
              <s id="s.002568">
                <emph type="center"/>
              PRÆSTANTISSIMO VIRO
                <lb/>
              CLAVDIO BASSET
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              HONORATVS FABRI. S.P.D.
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s id="s.002569">EX quo Dialogos meos ad te miſi, vir ornatiſſime, nonnul­
                <lb/>
              la inter
                <expan abbr="obſervandũ">obſervandum</expan>
              mihi occurrerunt, de quibus te certio­
                <lb/>
              rem faciendum eſſe duxi: movit me ad obſervandum, ſche­
                <lb/>
              ma quoddam Saturnij ſytematis, æſtate præterita, in vrbe
                <lb/>
              à nonnullis in lucem editum, in quo cum annuli Saturnij
                <lb/>
              planum ab eo paralleliſmo, quem huc vſque obtinere vi­
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              ſum eſt, cum Æquatoris plano, totis ferè 10. vel 11. gradibus deflexiſſe vi­
                <lb/>
              deretur, cœlum conſulendum eſſe putavi, vt vel novum Phenomenon ne­
                <lb/>
              gligerem, ſi ſecus probaret obſervatio, vel meo calculo donarem, ſi tale,
                <lb/>
              prorſus exhiberetur: ad explorandum igitur me accinxi Teleſcopio 25.Pal­
                <lb/>
              morum adhibito, divinianis lentibus accuratiſſimè, pro more, elaboratis in­
                <lb/>
              ſtructo: Saturnius annulus ſtatim meis oculis ita ſe ſubjecit, vt ſumma ejuſ­
                <lb/>
              dem annuli portio ſupra ſummum globi verticem, media ferè latitudinis
                <lb/>
              annuli parte aſſurgeret, infra verò imam globi portionem, ima prædicti an­
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              nuli deſcenderet, eo ferè modo, quo in excuſo ſchemate repræſentabatur:
                <lb/>
              ſed vix elapſo modico temporis ſpatio, ſummam portionem annuli infra
                <lb/>
              ſummam portionem globi, infimam item globi infra imam annuli deprimi,
                <lb/>
              clariſſimè aſpexi; vtriuſque Phenomeni facies alternis vicibus ſeſe mihi
                <lb/>
              exhibuit, non tantùm ſemel iterúmque, ſed toties, quoties vitrum, Satur­
                <lb/>
              num versùs converti. </s>
              <s id="s.002570">Obſervavi etiam, nigras illas auriculas, ſeu lacunas
                <lb/>
              globum inter & annulum contentas, modò contrahi, modò explicari, con­
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              trahi quidem, depreſſa ſuprema portione annuli infra ſummam globi, illa
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              verò aſſurgente, dilatari & explicari. </s>
              <s id="s.002571">Obſervavi præterea, projectam à glo­
                <lb/>
              bo Saturni vmbram, ſecundùm ſolatum radium, in ſupremam portionem
                <lb/>
              annuli, dextrorſum ſcilicet, Ortum versùs, propter ſitum Solis Occidenta­
                <lb/>
              lem, ita vt per planum annuli, niger tractus ire videretur, qui, vt modò ap­
                <lb/>
              paret, ita mox expungitur, alternis vicibus, vt ſupra jam dixi. </s>
              <s id="s.002572">Cuncta hæc
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              cum Divino noſtro, aliiſque obſervandi peritis hominibus ſæpè ac ſæpius
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              obſervavi. </s>
            </p>
            <p type="main">
              <s id="s.002573">Nec difficilè fuit, hujus Phœnomeni cauſam indagare; ſi enim ſuppona­
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              mus, huc illuc nutare ac librari planum annuli, circa majorem Diametrum
                <lb/>
                <expan abbr="apparẽtis">apparentis</expan>
              ellipſeos, ſcilicet Auſtrum versùs & Boream, illa omnia haud du-</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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