Gravesande, Willem Jacob 's, Physices elementa mathematica, experimentis confirmata sive introductio ad philosophiam Newtonianam; Tom. 1

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          <p>
            <s xml:id="echoid-s14010" xml:space="preserve">Objecta viſa trans vitrum planum, ſuperficiebus inter. </s>
            <s xml:id="echoid-s14011" xml:space="preserve">ſe
              <lb/>
              <note position="left" xlink:label="note-0548-01" xlink:href="note-0548-01a" xml:space="preserve">739.</note>
            parallelis terminatum, ad minorem diſtantiam, quàm nudis
              <lb/>
              <note position="left" xlink:label="note-0548-02" xlink:href="note-0548-02a" xml:space="preserve">TAB. X.
                <lb/>
              fig. 1.</note>
            oculis apparent. </s>
            <s xml:id="echoid-s14012" xml:space="preserve">Sit A punctum viſibile; </s>
            <s xml:id="echoid-s14013" xml:space="preserve">radii ex hoc pro-
              <lb/>
            cedentes, & </s>
            <s xml:id="echoid-s14014" xml:space="preserve">oculum intrantes, dantur inter A b, & </s>
            <s xml:id="echoid-s14015" xml:space="preserve">A b;
              <lb/>
            </s>
            <s xml:id="echoid-s14016" xml:space="preserve">hi refracti in vitro V V moventur per b c, b c; </s>
            <s xml:id="echoid-s14017" xml:space="preserve">& </s>
            <s xml:id="echoid-s14018" xml:space="preserve">exeunt
              <lb/>
            per c d, c d parallelas lineis A b, A b : </s>
            <s xml:id="echoid-s14019" xml:space="preserve">quia
              <note symbol="*" position="left" xlink:label="note-0548-03" xlink:href="note-0548-03a" xml:space="preserve">628.</note>
            b c, b c ad perpendicularem refringuntur , c d, c d,
              <note symbol="*" position="left" xlink:label="note-0548-04" xlink:href="note-0548-04a" xml:space="preserve">624.</note>
            ter b A & </s>
            <s xml:id="echoid-s14020" xml:space="preserve">b A cadunt; </s>
            <s xml:id="echoid-s14021" xml:space="preserve">id eſt, ſeſe mutuò ſecant in a mi-
              <lb/>
            nus diſtanti quam A; </s>
            <s xml:id="echoid-s14022" xml:space="preserve">focus ergo imaginarius radiorum ocu-
              <lb/>
            lum intrantium eſt a, in quo punctum A apparet .</s>
            <s xml:id="echoid-s14023" xml:space="preserve"/>
          </p>
          <note symbol="*" position="left" xml:space="preserve">737.</note>
          <p>
            <s xml:id="echoid-s14024" xml:space="preserve">Punctum hoc etiam magis illuminatum apparet, viſum
              <lb/>
              <note position="left" xlink:label="note-0548-06" xlink:href="note-0548-06a" xml:space="preserve">740.</note>
            trans vitrum memoratum. </s>
            <s xml:id="echoid-s14025" xml:space="preserve">Nam omnes radii inter A b & </s>
            <s xml:id="echoid-s14026" xml:space="preserve">
              <lb/>
            A b pupillam intrant inter d & </s>
            <s xml:id="echoid-s14027" xml:space="preserve">d; </s>
            <s xml:id="echoid-s14028" xml:space="preserve">cùm verò lineæ A b, A b
              <lb/>
            ſint parallelæ lineis c d, c d, & </s>
            <s xml:id="echoid-s14029" xml:space="preserve">hæ dentur inter illas, A b
              <lb/>
            & </s>
            <s xml:id="echoid-s14030" xml:space="preserve">A b continuatæ ultra d & </s>
            <s xml:id="echoid-s14031" xml:space="preserve">d caderent; </s>
            <s xml:id="echoid-s14032" xml:space="preserve">ideoque ſublato vi-
              <lb/>
            tro, radii qui nunc pupillam intrant majus ſpatium occupa-
              <lb/>
            rent, & </s>
            <s xml:id="echoid-s14033" xml:space="preserve">non omnes oculum intrarent.</s>
            <s xml:id="echoid-s14034" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s14035" xml:space="preserve">Magnitudo apparens objecti augetur interpoſito vitro pla-
              <lb/>
              <note position="left" xlink:label="note-0548-07" xlink:href="note-0548-07a" xml:space="preserve">741.</note>
            no; </s>
            <s xml:id="echoid-s14036" xml:space="preserve">Objectum A E nudo oculo videtur ſub angulo A d E;
              <lb/>
            </s>
            <s xml:id="echoid-s14037" xml:space="preserve">
              <note position="left" xlink:label="note-0548-08" xlink:href="note-0548-08a" xml:space="preserve">TAB. X.
                <lb/>
              fig. 2.</note>
            poſito verò vitro V V, ob refractionem per A b c d & </s>
            <s xml:id="echoid-s14038" xml:space="preserve">E b c d,
              <lb/>
            videtur ſub angulo c d c, qui præcedente major eſt. </s>
            <s xml:id="echoid-s14039" xml:space="preserve">Non ta-
              <lb/>
              <note position="left" xlink:label="note-0548-09" xlink:href="note-0548-09a" xml:space="preserve">742.</note>
            men pro ratione auctæ magnitudinis, apparentis objectum
              <lb/>
            majus videtur ; </s>
            <s xml:id="echoid-s14040" xml:space="preserve">nam ad minorem diſtantiam apparet .</s>
            <s xml:id="echoid-s14041" xml:space="preserve"/>
          </p>
          <note symbol="*" position="left" xml:space="preserve">734.</note>
          <p>
            <s xml:id="echoid-s14042" xml:space="preserve">Augmentum magnitudinis apparentis eo major eſt, quo ma-
              <lb/>
              <note symbol="*" position="left" xlink:label="note-0548-11" xlink:href="note-0548-11a" xml:space="preserve">739.</note>
              <note position="left" xlink:label="note-0548-12" xlink:href="note-0548-12a" xml:space="preserve">743.</note>
            gis differunt anguli a d E & </s>
            <s xml:id="echoid-s14043" xml:space="preserve">c d c; </s>
            <s xml:id="echoid-s14044" xml:space="preserve">quorum differentia creſcit
              <lb/>
            cum acceſſu interſectionum linearum A d cum b c & </s>
            <s xml:id="echoid-s14045" xml:space="preserve">E d
              <lb/>
            cum b c, verſus puncta b & </s>
            <s xml:id="echoid-s14046" xml:space="preserve">b; </s>
            <s xml:id="echoid-s14047" xml:space="preserve">quod obtinet in acceſſu objecti
              <lb/>
            ad vitrum; </s>
            <s xml:id="echoid-s14048" xml:space="preserve">ideoque omnium maxima eſt, quando objectum
              <lb/>
            vitrum tangit; </s>
            <s xml:id="echoid-s14049" xml:space="preserve">quod probat objecta in ipſo vitro etiam am-
              <lb/>
            plificata apparêre.</s>
            <s xml:id="echoid-s14050" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s14051" xml:space="preserve">Et in genere, poſito oculo in medio rariori, objectum quod
              <lb/>
              <note position="left" xlink:label="note-0548-13" xlink:href="note-0548-13a" xml:space="preserve">744.</note>
            in medio denſiori videtur majus apparere, quod etiam refra-
              <lb/>
            ctione appropinquatur . </s>
            <s xml:id="echoid-s14052" xml:space="preserve">Confirmantur hæc quotidianâ
              <note symbol="*" position="left" xlink:label="note-0548-14" xlink:href="note-0548-14a" xml:space="preserve">659.</note>
            perientiâ, reſpectu objectorum in aquâ viſorum.</s>
            <s xml:id="echoid-s14053" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s14054" xml:space="preserve">Detur punctum A trans lentem convexam V V viſum, ra-
              <lb/>
              <note position="left" xlink:label="note-0548-15" xlink:href="note-0548-15a" xml:space="preserve">745.</note>
            dii A b, A b in c d, c d minus divergentes exeunt, quaſi
              <lb/>
              <note position="left" xlink:label="note-0548-16" xlink:href="note-0548-16a" xml:space="preserve">TAB. X.
                <lb/>
              fig. 3.</note>
            nempe ex a procederent ; </s>
            <s xml:id="echoid-s14055" xml:space="preserve">ideoque punctum hoc ad
              <note symbol="*" position="left" xlink:label="note-0548-17" xlink:href="note-0548-17a" xml:space="preserve">699.</note>
            </s>
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