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

Table of contents

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[511.] Experimentum 2.
Page: 598 (45)
[512.] Experimentum 3.
Page: 598 (45)
[513.] CAPUT XI. De viſione trans vitra, & corrigendis quibuſdam oculorum vitiis.
Page: 602 ((49))
[514.] De Microſcopiis & Teleſcopiis.
Page: 607 ((54))
[515.] Definitio 1.
Page: 607 ((54))
[516.] Definitio 2.
Page: 607 ((54))
[517.] Experimentum 1.
Page: 607 ((54))
[518.] Experimentum 2.
Page: 611 (55)
[519.] Definitio 3. & 4.
Page: 611 (55)
[520.] Definitio 3.
Page: 612 (56)
[521.] Experimentum 3.
Page: 616 (57)
[522.] Experimentum 4.
Page: 617 (58)
[523.] CAPUT XIII. De Reflexione Luminis.
Page: 621 (59)
[524.] Definitio 1.
Page: 621 (59)
[525.] Definitio 2.
Page: 621 (59)
[526.] Experimentum 1.
Page: 622 (60)
[527.] Experimentum. 2.
Page: 623 (61)
[528.] Experimentum 3.
Page: 623 (61)
[529.] Experimentum 4.
Page: 623 (61)
[530.] CAPUT XIV. De Speculis planis.
Page: 626 (64)
[531.] CAPUT XV. De Speculis ſphæricis.
Page: 626 (64)
[532.] Experimentum 1.
Page: 628 (66)
[533.] Experimentum 2.
Page: 628 (66)
[534.] Experimentum 3.
Page: 633 ((68))
[535.] Accedente autem ad ſpeculum corpore lucido, recedit ap-parentia , quæ in eo caſu major eſt.
Page: 635 ((70))
[536.] Experimentum 4.
Page: 635 ((70))
[537.] Experimentum 5.
Page: 635 ((70))
[538.] CAPUT XVI. De Lucerna Magica.
Page: 637 ((72))
[539.] LIBRI III. Pars III. De Opaco & Coloribus. CAPUT XVII. De Corporum Opacitate Definitio.
Page: 643 ((75))
[540.] Experimentum. 1.
Page: 644 ((76))
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          <pb o="(54)" file="0552" n="607" rhead="PHYSICES ELEMENTA CAPUT XII."/>
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        <div xml:id="echoid-div2112" type="section" level="1" n="514">
          <head xml:id="echoid-head683" style="it" xml:space="preserve">De Microſcopiis & Teleſcopiis.</head>
          <p>
            <s xml:id="echoid-s14156" xml:space="preserve">VItrorum, ſphæricis ſuperficiebus terminatorum, uſus,
              <lb/>
            in corrigendis oculorum Senum & </s>
            <s xml:id="echoid-s14157" xml:space="preserve">Myopum vitiis, vi-
              <lb/>
            dimus . </s>
            <s xml:id="echoid-s14158" xml:space="preserve">Quantum valeant, in minimis objectis
              <note symbol="*" position="left" xlink:label="note-0552-01" xlink:href="note-0552-01a" xml:space="preserve">756. 758.</note>
            dis, & </s>
            <s xml:id="echoid-s14159" xml:space="preserve">in longè diſtantibus quaſi ſub oculis ponendis, dicen-
              <lb/>
            dum eſt.</s>
            <s xml:id="echoid-s14160" xml:space="preserve"/>
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          <p>
            <s xml:id="echoid-s14161" xml:space="preserve">Vitra convexa objecta amplificare diximus ; </s>
            <s xml:id="echoid-s14162" xml:space="preserve">quæ
              <note symbol="*" position="left" xlink:label="note-0552-02" xlink:href="note-0552-02a" xml:space="preserve">747.</note>
            ficatio pendet à refractione radiorum, tranſeundo per lentem
              <lb/>
            convexam, unde ſequitur illam augeri, ſi ſervatis iiſdem
              <lb/>
            conditionibus, refractio augeatur; </s>
            <s xml:id="echoid-s14163" xml:space="preserve">quem effectum obtine-
              <lb/>
            mus, augendo convexitatem lentis; </s>
            <s xml:id="echoid-s14164" xml:space="preserve">quæ eò convexior eſt,
              <lb/>
            quo ſuperficies, hanc terminantes, ſunt portiones minoris
              <lb/>
            ſphæræ quod niſi in exiguis vitris locum habere non poteſt.</s>
            <s xml:id="echoid-s14165" xml:space="preserve"/>
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        <div xml:id="echoid-div2115" type="section" level="1" n="515">
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            <emph style="sc">Definitio</emph>
          1.</head>
          <p>
            <s xml:id="echoid-s14166" xml:space="preserve">Tales lentes exiguæ Microſcopia vocantur.</s>
            <s xml:id="echoid-s14167" xml:space="preserve"/>
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          <note position="left" xml:space="preserve">760.</note>
          <p>
            <s xml:id="echoid-s14168" xml:space="preserve">Microſcopio exigua objecta in immenſum amplificantur
              <lb/>
              <note position="left" xlink:label="note-0552-04" xlink:href="note-0552-04a" xml:space="preserve">761.</note>
            ita, ut quæ nudis oculis detegi non poſſunt, hoc median-
              <lb/>
            te, diſtinctiſſimè videantur.</s>
            <s xml:id="echoid-s14169" xml:space="preserve"/>
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        <div xml:id="echoid-div2117" type="section" level="1" n="516">
          <head xml:id="echoid-head685" xml:space="preserve">
            <emph style="sc">Definitio</emph>
          2.</head>
          <p>
            <s xml:id="echoid-s14170" xml:space="preserve">Spatium per Microſcopium viſum, id eſt, circulus in quo
              <lb/>
              <note position="left" xlink:label="note-0552-05" xlink:href="note-0552-05a" xml:space="preserve">762.</note>
            objecta per Microſcopium viſibilia ſunt, vocatur Microſco-
              <lb/>
            pii campus.</s>
            <s xml:id="echoid-s14171" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div2119" type="section" level="1" n="517">
          <head xml:id="echoid-head686" xml:space="preserve">
            <emph style="sc">Experimentum</emph>
          1.</head>
          <p>
            <s xml:id="echoid-s14172" xml:space="preserve">Per Microſcopium V ſi intueamur objectum exiguum
              <lb/>
              <note position="left" xlink:label="note-0552-06" xlink:href="note-0552-06a" xml:space="preserve">TAB. IX.
                <lb/>
              fig. 5.</note>
            A E, in a e amplificatum apparebit .</s>
            <s xml:id="echoid-s14173" xml:space="preserve"/>
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          <note symbol="*" position="left" xml:space="preserve">745. 747.</note>
          <p>
            <s xml:id="echoid-s14174" xml:space="preserve">Dantur & </s>
            <s xml:id="echoid-s14175" xml:space="preserve">Microſcopia compoſita, ex duabus aut tribus
              <lb/>
            lentibus conſtantia; </s>
            <s xml:id="echoid-s14176" xml:space="preserve">quo fundamento nitantur, explicatione
              <lb/>
            illius, quod ex duabus lentibus conſtat, ſatis patebit.</s>
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          <p>
            <s xml:id="echoid-s14178" xml:space="preserve">Detur lens exigua, admodum convexa, V V, ad talem ab
              <lb/>
              <note position="left" xlink:label="note-0552-08" xlink:href="note-0552-08a" xml:space="preserve">TAB XI.
                <lb/>
              fig. 2.</note>
            hac diſtantiam detur objectum A E, ut ſingula illius puncta
              <lb/>
            poſt lentem focum ſuum habeant ; </s>
            <s xml:id="echoid-s14179" xml:space="preserve">admoveatur ita
              <note symbol="*" position="left" xlink:label="note-0552-09" xlink:href="note-0552-09a" xml:space="preserve">710. 699.</note>
            ctum, ut foci removeantur ad a e , dabitur ibi objecti
              <note symbol="*" position="left" xlink:label="note-0552-10" xlink:href="note-0552-10a" xml:space="preserve">699.</note>
            præſentatio, admodum amplificata, quæ ſuper plano albo
              <lb/>
            ſi recipiatur ſenſibilis fiet .</s>
            <s xml:id="echoid-s14180" xml:space="preserve"/>
          </p>
          <note symbol="*" position="left" xml:space="preserve">711.</note>
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