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

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      <text>
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          <chap>
            <p type="main">
              <s id="id.000884">
                <pb pagenum="138" xlink:href="027/01/137.jpg"/>
              vides, non negatur quidem, quin mutatio aliqua fiat;
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              quin verus quaſi polus habendus ſit ipſum centrum
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              circuli, in quod terminari concipitur axis æquatoris
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              magni orbis per medium Solem tranſiens; quin pun­
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              ctum terminans axem Terræ diſtet ab eo ſemper to­
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              ta ſemidiametro, & nunc quidem in vnam partem,
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              nunc in aliam: ſed negatur tamen quicquid illud eſt,
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              inducere ſpectantibus obſeruabilem varietatem. </s>
              <s id="id.000885">Ne­
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              que morari debet
                <emph type="italics"/>
              Quartò
                <emph.end type="italics"/>
              quòd nulla videatur eſſe
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              poſſe inter dies, nocteiſque inæqualitas, nullaque
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              proinde æſtatis, hiemiſque viciſſitudo; quaſi trans­
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              lata per Zodiacum Terra perinde ſemper à Sole di­
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              ſtet, eodemque modo eandem ſemper illi obuertat
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              faciem. </s>
              <s id="id.000886">Siquidem expoſita axis in paralleliſmo con­
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              tinentia obſtat, ne ipſe Terræ æquator cum Zodia­
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              co congruat, ſiue in eodem plano, & abſque interſe­
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              ctione ſit, vt contingeret, ſi axis Terræ parallelus eſſet
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              axi Zodiaci, non verò æquatoris; quo ſanè caſu non
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              foret dierum, noctumque inæqualitas, ſed conſtans
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              vbique foret æquinoctium; perinde que eſſet, ac ſi Ter­
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              ra in centro quieſcente, Sol ad Tropicos non defle­
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              cteret, ſed in æquatore perpetuò circumduceretur;
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              vnde neque vllus foret æquator præter Zodiacum,
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              neque vlli forent poli præter polos Zodiaci, pari
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              modo concipiendos, quo de cæteris dictum eſt. </s>
              <s id="id.000887">Cùm
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              paralieliſmus verò ille efficiat, vt æquator Terræ ſe­
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              cet continenter Zodiacum, & maneat conſtanter pa­
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              ralleius æquatori magni orbis; heinc fit, vt nobis v.
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              g. qui ad boream ſumus, dum Terra in Cancro eſt,
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              obſtet gibbus Terræ, ne Solem in centro tam aper-</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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