Casati, Paolo, De igne dissertationes physicae, 1686

Table of figures

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          <pb o="371" file="0383" n="383" rhead="De Luce Ignis."/>
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            <s xml:id="echoid-s11283" xml:space="preserve">Dand. </s>
            <s xml:id="echoid-s11284" xml:space="preserve">Cum igitur poſſit vnus & </s>
            <s xml:id="echoid-s11285" xml:space="preserve">idem globulus æthereus di-
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            uerſis impulſibus in diuerſas partes dirigi, quas directiones con-
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            ſequentibus globulis communicat, contingere poteſt, vnum im-
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            pulſum adeò cœteris validiorem eſſe, vt illi vix, aut ne vix qui-
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            dem, iuxta ſuam directionem impetum valeant conſequentibus
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            globulis imprimere. </s>
            <s xml:id="echoid-s11286" xml:space="preserve">Hinc quærenti, cur candela noctu vniuerſum
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            conclaue illuſtrans, non itidem id præſtet interdiu Sole lucente,
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            niſi clauſis feneſtris obſcuratum fuerit cubiculum, Reſponderem
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            id accidere, quia æthereæ particulæ adeò validè propelluntur à
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            Solis luce, vt impelli non valeant à flammâ candelæ, niſi fortaſſe
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            valdè propè, & </s>
            <s xml:id="echoid-s11287" xml:space="preserve">ibi etiam eius impetus retunditur ab aliâ vali-
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            diore directione. </s>
            <s xml:id="echoid-s11288" xml:space="preserve">Sed vt exitum tandem aliquem hodiernæ collo-
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            cutionis inueniamus, luce ipſâ diurnâ ad occaſum properante,
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            cum Reflexionis ratio non videatur diſficilem habere explicatio-
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            nem, ſupereſt vt aliquid de Refractione breuiter dicamus, quæ
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            ex mediorum raritate & </s>
            <s xml:id="echoid-s11289" xml:space="preserve">denſitate pendet; </s>
            <s xml:id="echoid-s11290" xml:space="preserve">qui enim radij directè
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            procedunt, incidentem in ſuperſiciem medij diap hani quidem,
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            ſed denſioris, ſi ad angulos inæquales cadant, non directè per-
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            gunt, ſed versùs perpendiculum flectuntur intrà nouum illud me-
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            dium, ſin autem à denſo ad rarum diaphanum tranſeant, ne-
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            que tunc ſuſceptam directionem retinent, ſed magis à perpendicu-
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            lo deflectunt.</s>
            <s xml:id="echoid-s11291" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s11292" xml:space="preserve">Maur. </s>
            <s xml:id="echoid-s11293" xml:space="preserve">Æthereas particulas minutiſſimas eſſe ſupra omnem, quę
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            excogitari poſſit, exiguitatem (nam vitrum permeant, quod ab
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            ipſis Spiritibus tenuiſſimis penetrari non poteſt) extra omnem
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            controuerſiam ſtatuendum eſt, ſi quamlibet vel minimam inani-
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            tatem à corporibus ablegamus: </s>
            <s xml:id="echoid-s11294" xml:space="preserve">ideò minimum omnium mea-
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            tum in corpore aliquo vna ſaltem ætherea particula implet: </s>
            <s xml:id="echoid-s11295" xml:space="preserve">ex
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            quo illud conſequens eſt, quod paulò ampliores meatus admit-
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            tant non vnicam, ſed plures æthereas particulas. </s>
            <s xml:id="echoid-s11296" xml:space="preserve">At verò cor-
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            porum diuerſorum coagmentatio ea eſt, vt non omnes, & </s>
            <s xml:id="echoid-s11297" xml:space="preserve">ſin-
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            guli eorum meatus eâdem pręditi ſint figurâ: </s>
            <s xml:id="echoid-s11298" xml:space="preserve">neceſſe igitur eſt,
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            eius eſſe naturę ęthereas particulas, quę poſſit ad replendum ſpa-
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            tium citrà quamlibet inanitatem accommodari: </s>
            <s xml:id="echoid-s11299" xml:space="preserve">neque enim fin-
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            gere poſſumus diuerſas eſſe ętherearum particularum figuras, quę
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            ſingulorum meatuum figurę & </s>
            <s xml:id="echoid-s11300" xml:space="preserve">capacitati prorſus conueniant;
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            </s>
            <s xml:id="echoid-s11301" xml:space="preserve">alioquin quę angulatę eſſent, non niſi ęgerrimè mouerentur:</s>
            <s xml:id="echoid-s11302" xml:space="preserve"/>
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