Huygens, Christiaan, Christiani Hugenii opera varia; Bd. 2: Opera geometrica. Opera astronomica. Varia de optica

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          <p>
            <s xml:id="echoid-s8473" xml:space="preserve">
              <pb o="656" file="0396" n="415" rhead="CHISTIANI HUGENII"/>
            alantur. </s>
            <s xml:id="echoid-s8474" xml:space="preserve">Nihil enim aliter gigni poſſe omnes fere Philoſo-
              <lb/>
            phiarbitrantur; </s>
            <s xml:id="echoid-s8475" xml:space="preserve">& </s>
            <s xml:id="echoid-s8476" xml:space="preserve">fuere inter præcipuos, qui ex aqua omnium
              <lb/>
            rerum originem eſſe dicerent. </s>
            <s xml:id="echoid-s8477" xml:space="preserve">Etenim, ſicca & </s>
            <s xml:id="echoid-s8478" xml:space="preserve">arida quæ
              <lb/>
            ſunt, motu carent: </s>
            <s xml:id="echoid-s8479" xml:space="preserve">abſque motu vero nihil corporibus, quo
              <lb/>
            augeantur, accedere poſſe manifeſtum eſt. </s>
            <s xml:id="echoid-s8480" xml:space="preserve">At liquidorum
              <lb/>
            particulæ, & </s>
            <s xml:id="echoid-s8481" xml:space="preserve">inter ſe continue moventur, & </s>
            <s xml:id="echoid-s8482" xml:space="preserve">facile ſeſe ubi-
              <lb/>
            que inſinuant; </s>
            <s xml:id="echoid-s8483" xml:space="preserve">quo fit, ut non tantum ſeipſas, ſed & </s>
            <s xml:id="echoid-s8484" xml:space="preserve">alias
              <lb/>
            diverſæ naturæ, quas ſecum vehunt, creſcentibus apponere
              <lb/>
            aptæ ſint. </s>
            <s xml:id="echoid-s8485" xml:space="preserve">Ita enim, aquæ affluxu, & </s>
            <s xml:id="echoid-s8486" xml:space="preserve">herbas adoleſcere, fo-
              <lb/>
            liiſque & </s>
            <s xml:id="echoid-s8487" xml:space="preserve">fructibus augeri, & </s>
            <s xml:id="echoid-s8488" xml:space="preserve">lapides ex arena concreſcere cer-
              <lb/>
            nimus. </s>
            <s xml:id="echoid-s8489" xml:space="preserve">Itemque metalla & </s>
            <s xml:id="echoid-s8490" xml:space="preserve">cryſtallos, gemmaſque incre-
              <lb/>
            menta inde capere ſatis conſtat, etſi in his obſcurius id ani-
              <lb/>
            madvertitur, propter lentiſſimos progreſſus; </s>
            <s xml:id="echoid-s8491" xml:space="preserve">quodque ſæpe
              <lb/>
            non in iis, quibus enatæ ſint, locis cavitatibuſque reperian-
              <lb/>
            tur; </s>
            <s xml:id="echoid-s8492" xml:space="preserve">pervetuſtis, ut videtur, Terræ ruinis convulſionibuſ-
              <lb/>
              <note position="left" xlink:label="note-0396-01" xlink:href="note-0396-01a" xml:space="preserve">Aquas a
                <lb/>
              Planetis non
                <lb/>
              abeſſe.</note>
            que disjectæ. </s>
            <s xml:id="echoid-s8493" xml:space="preserve">Sed aquæ elementum a Planetis non abeſſe,
              <lb/>
            veriſimiles quoque conjecturæ ſuppetunt, ex teleſcopiorum
              <lb/>
            obſervationibus. </s>
            <s xml:id="echoid-s8494" xml:space="preserve">Apparent enim in Jove tractus quidam re-
              <lb/>
            liquo diſco obſcuriores, iique non eadem ſemper forma per-
              <lb/>
            manentes, quod nubium proprium eſt. </s>
            <s xml:id="echoid-s8495" xml:space="preserve">Maculæ vero, quæ
              <lb/>
            immutabiliter globo ejus inhærere conſpiciuntur, ſæpe lon-
              <lb/>
            go tempore obtectæ manent, nubibus videlicet illis interce-
              <lb/>
            ptæ, è quibus deinde rurſus emergant. </s>
            <s xml:id="echoid-s8496" xml:space="preserve">Atque etiam nubes
              <lb/>
            in medio Jovis diſco exoriri quandoque annotatum fuit, & </s>
            <s xml:id="echoid-s8497" xml:space="preserve">
              <lb/>
            maculas quaſdam minores exiſtere, reliquo corpore magis
              <lb/>
            lucidas, neque eas diu ſupereſſe; </s>
            <s xml:id="echoid-s8498" xml:space="preserve">quas Caſſinus ex nivibus
              <lb/>
            eſſe conjectabat, cacumina montium inſidentibus. </s>
            <s xml:id="echoid-s8499" xml:space="preserve">Mihi non
              <lb/>
            improbabile videtur, terræ regiones candidiores eſſe, ſuper-
              <lb/>
            fuſis nubibus plerumque occultatas, ac nonnunquam ab iis
              <lb/>
            liberas.</s>
            <s xml:id="echoid-s8500" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s8501" xml:space="preserve">Apparent, etiam in Marte, lucis & </s>
            <s xml:id="echoid-s8502" xml:space="preserve">obſcuritatis diſcrimi-
              <lb/>
            na, ex quibus converſio ejus ad Solem, viginti quatuor ho-
              <lb/>
            ris cum 40 ſcrupulis primis, abſolvi reperta eſt; </s>
            <s xml:id="echoid-s8503" xml:space="preserve">nubes tamen
              <lb/>
            nondum fuerunt animadverſæ, idcirco quod multò minor cer-
              <lb/>
            nitur quam Jupiter; </s>
            <s xml:id="echoid-s8504" xml:space="preserve">etiam cum maximè ad Tellurem appro-
              <lb/>
            pinquat. </s>
            <s xml:id="echoid-s8505" xml:space="preserve">Præterquam quod & </s>
            <s xml:id="echoid-s8506" xml:space="preserve">intenſior Martis lux, </s>
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