Gassendi, Pierre, De motu impresso a motore translato epistulae duae, 1642

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              <s id="id.000938">
                <pb pagenum="147" xlink:href="027/01/146.jpg"/>
              menſe. </s>
              <s id="id.000939">Quare Saturnus etiam quotannis efficiatur
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              retrogradus, idque vix tardiùs dimidio menſis,
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              quia nimirùm Terra velocior trigecuplò eſt, & ab
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              eo digreſſa illum rurſùs aſſequitur duodecimo men­
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              ſe, & vix ſemiſſe prætereà. </s>
              <s id="id.000940">Ex quibus profectò mi­
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              rabile ſit, niſi cùm omnia ita conſentiant, & omnia,
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              quæ apparent, adeò facilè, ſimpliciterque ex vna
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              Terræ circunductione inter Martem, ac Venerem in­
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              telligantur, explicenturque; neque ſit opus tot ma­
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              chinis, tot ambagibus, tot commentis abſque or­
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              dine, & veriſimilitudine introductis; niſi, inquam Ter­
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              ra id loci moueatur. </s>
              <s id="id.000941">Et conſidera, quæſo, cur Lu­
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              na nobis nunquam appareat nec ſtare, nec retro­
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              gredi; niſi quia ipſa ſemper circumducitur nobis,
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              quaſi in centro illius conſtitutis? </s>
              <s id="id.000942">Cur nunquam Sol:
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              niſi quia nos ſemper ipſi circumducimur, tanquam
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              in centro exſiſtenti? </s>
              <s id="id.000943">Quam-obrem verò non eadem
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              euenirent aliis quinque, ſi vel nos ipſis centrum eſ­
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              ſemus, vel ipſi nobis; & non potiùs mixtìm iremus,
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              circumduceremurque circa eundem Solem, vt circa
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              idem centrum? </s>
              <s id="id.000944">Tycho certè, qui Terram in centro
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              immotam detinuit, ita ipſi Lunam, Solem que cir­
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              cumduxit, vt coactus fuerit circumducere Soli quin­
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              que alios; tametſi mira, vt videtur, incontinuitate
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              volüerit Solem dietìm circumeuntem Terram, trans­
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              ferre illos omneis ſecum, obeunteis intereà motus
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              proprios; neque potuerit fingere, quomodo ille in­
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              terea corriperetur à Firmamento, mobilive primo;
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              quomodo item Luna (vt præter motum menſtruum,
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              dietim quoque Terram obeat) idque ſpatiis liberri-</s>
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