Bošković, Ruđer Josip, Theoria philosophiae naturalis redacta ad unicam legem virium in natura existentium

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page |< < (67) of 389 > >|
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              <pb o="67" file="0119" n="119" rhead="PARS PRIMA."/>
            gitur irregulariter in quibuſvis angulis. </s>
            <s xml:space="preserve">Jam olim enim obſer-
              <lb/>
              <note position="right" xlink:label="note-0119-01" xlink:href="note-0119-01a" xml:space="preserve">ge continuita-.
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              tis per radios ir
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              regulariter diſ.
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              perſos.</note>
            vatum eſt illud, ubi lucis radius reflectitur, non reflecti totum
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            ita, ut angulus reflexionis æquetur angulo incidentiæ, ſed par-
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            tem diſpergi quaquaverſus; </s>
            <s xml:space="preserve">quam ob cauſam ſi Solis radius in
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            partem quandam ſpeculi incurrat, quicunque eſt in conclavi ,
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            videt, qui ſit ille locus, in quem incurrit radius, quod utique
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            non fieret, niſi e ſolaribus illis directis radiis etiam ad oculum
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            ipſius radii devenirent , egreſſi in omnibus iis directionibus ,
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            quæ ad omnes oculi poſitiones tendunt; </s>
            <s xml:space="preserve">licet ibi quidem ſatis
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            intenſum lumen non appareat, niſi in directione faciente angu-
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            lum reflexionis æqualem incidentiæ, in qua reſilit maxima lu-
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            minis pars. </s>
            <s xml:space="preserve">Et quidem hiſce radiis redeuntibus in angulis hiſ-
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            ce inæqualibus egregie utitur Newtonus in fine Opticæ ad ex-
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            plicandos colores laminarum craſſarum: </s>
            <s xml:space="preserve">& </s>
            <s xml:space="preserve">eadem irregularis di-
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            ſperſio in omnes plagas ad ſenſum habetur in tenui parte, ſed
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            tamen in aliqua, radii refracti. </s>
            <s xml:space="preserve">Hinc inter vividum illum
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            reſlexum radium, & </s>
            <s xml:space="preserve">refractum, habetur intermedia omnis ejuſ-
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            modi radiorum ſeries in omnibus iis intermediis angulis pro-
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            deuntium, & </s>
            <s xml:space="preserve">ſic etiam ubi tranſitur a refractione ad reflexio-
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            nem in totum, videtur per hoſce intermedios angulos res poſ-
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            ſe fieri citiſſimo tranſitu per ipſos, atque idcirco illæſa perſe-
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            verare continuitas.</s>
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          <p>
            <s xml:space="preserve">148. </s>
            <s xml:space="preserve">Verum ſi adhuc altius perpendatur res; </s>
            <s xml:space="preserve">patebit in illa
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              <note position="right" xlink:label="note-0119-02" xlink:href="note-0119-02a" xml:space="preserve">Cur ea appa-
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              rens tantum :
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              vera concilia-
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              tio per conti-
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              nuitatem viæ
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              cujuſvis puncti
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              lucis.</note>
            intermedia ſerie non haberi accuratam continuitatem, ſed ap-
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            parentem quandam, quam Natura affectat, non accurate ſervat
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            illæſam. </s>
            <s xml:space="preserve">Nam lumen in mea Theoria non eſt corpus quod-
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            dam continuum, quod diffundatur continuo per illud omne ſpa-
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            tium, ſed eſt aggregatum punctorum a ſe invicem disjuncto-
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            rum, atque diſtantium, quorum quodlibet ſuam percurrit viam
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            disjunctam a proximi via per aliquod intervallum. </s>
            <s xml:space="preserve">Continui-
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            tas ſervatur accuratiſſime in ſingulorum punctorum viis, non in
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            diffuſione ſubſtantiæ non continuæ, & </s>
            <s xml:space="preserve">quo pacto ea in omnibus
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            iis motibus ſervetur, & </s>
            <s xml:space="preserve">mutetur, mutata inclinatione inciden-
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            tiæ, via a ſingulis punctis deſcripta ſine ſaltu, ſatis luculenter ex-
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            poſui in ſecunda parte meæ diſſertationis De Lumine a num. </s>
            <s xml:space="preserve">98.
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            </s>
            <s xml:space="preserve">Sed hæc ad applicationem jam pertinent Theoriæ ad Phyſicam.</s>
            <s xml:space="preserve"/>
          </p>
          <p>
            <s xml:space="preserve">149. </s>
            <s xml:space="preserve">Haud multum abſimiles ſunt alii quidam caſus, in qui-
              <lb/>
              <note position="right" xlink:label="note-0119-03" xlink:href="note-0119-03a" xml:space="preserve">Quo pacto ſer-
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              vetur coatinui-
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              tas in quibuſ-
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              dam caſibus ,
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              in quibus vi-
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              detur lædi.</note>
            bus ſingula continuitatem obſervant, non aggregatum utique
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            non continuum, ſed partibus disjunctis conſtans. </s>
            <s xml:space="preserve">Hujuſmo-
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            di eſt ex. </s>
            <s xml:space="preserve">gr. </s>
            <s xml:space="preserve">altitudo cujuſdam domus, quæ ædificatur de no-
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            vo, cui cum ſeries nova adjungitur lapidum determinatæ cu-
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            juſdam altitudinis, per illam additionem repente videtur cre-
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            ſcere altitudo domus, ſine tranſitu per altitudines intermedias:
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            </s>
            <s xml:space="preserve">& </s>
            <s xml:space="preserve">ſi dicatur id non eſſe Naturæ opus, ſed artis; </s>
            <s xml:space="preserve">poteſt difficul-
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            tas transferri facile ad naturæ opera, ut ubi diverſa inducuntur
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            glaciei ſtrata, vel in aliis incruſtationibus, ac in iis omnibus
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            caſibus, in quibus incrementum fit per externam applicationem
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            partium, ubi acceſſiones finitæ videntur acquiri ſimul totæ </s>
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