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

Table of contents

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[191.] II. CONSTRUCTIO PROBLEMATIS OPTICI. Propoſitio 39 Libri v. Alhazeni, & 22 lib. VI. Vitellionis.
Page: 525 (759)
[192.] III. ALITER. Dato Speculo Cavo aut Convexo, itemque Oculo & Puncto Rei viſæ, invenire Punctum Reflexionis.
Page: 526 (760)
[193.] IV. COMPENDIUM.
Page: 527 (761)
[194.] V. ALIA SOLUTIO.
Page: 527 (761)
[195.] VI. Excerpta ex litteris Dni. Hugenii Acad. Reg. ſcient. Socii, ad auctorem Diarii Paris. de novo Mi-croſcopio ex Hollandia allato.
Page: 530 (764)
[196.] FINIS.
Page: 531 (765)
[197.] CHRISTIANI HUGENII EXPERIMENTA PHYSICA.
Page: 533
[198.] CHRISTIANI HUGENII EXPERIMENTA PHYSICA. Excerpta ex literis Dni Hugenii, Academiæ regiæ ſcien-tiarum Socii, ad Auctorem Diarii Eruditorum, de Phænomenis aquæ aëre purgatæ.
Page: 535 (769)
[199.] EXPERIMENTUMI. Aqua, ſublatâ aëris preſſione, hæret in tubo.
Page: 536 (770)
[200.] EXPERIMENTUM II. Notabile quid in deſcenſu aquæ aëre purgatæ.
Page: 537 (771)
[201.] EXPERIMENTUM III. Adhibito ſpiritu vini loco aquæ.
Page: 538 (772)
[202.] EXPERIMENTUM IV. Aër, ex Spiritu vini aut aqua exhauſtus, hæc corpora iterum intrat.
Page: 539 (773)
[203.] EXPERIMENTUM V. Laminæ metallicæ arcte inter ſe cohærent in vacuo licet nihil inter has detur.
Page: 541 (775)
[204.] EXPERIMENTUM VI. Effectus Siphonis in vacuo.
Page: 542 (776)
[205.] FINIS.
Page: 542 (776)
[206.] INDEX RERUM Quatuor Tomis contentarum. TOMUS PRIMUS OPERA MECHANICA.
Page: 546
[207.] TOMUS SECUNDUS. OPERA GEOMETRICA.
Page: 550
[208.] TOMUS TERTIUS. OPERA ASTRONOMICA.
Page: 554
[209.] TOMUS QUARTUS OPERA MISCELLANEA.
Page: 557
[210.] FINIS.
Page: 559
[211.] CATALOGUS QUORUNDAM LIBRORUM, Qui apud Janssonios Van der Aa, Bibliopolas Lugduni Batavorum, venales proſtant.
Page: 560
[212.] AVIS AU RELIEUR.
Page: 563
[213.] BERIGT AAN DEN BOEKBINDER.
Page: 563
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              <pb o="773" file="0517" n="539" rhead="EXPERIMENTA PHYSICA."/>
            Interim bullæ, quæ aſcenderunt in tubum C, ita dilatantùr
              <lb/>
            ut plane impleant globum, ut & </s>
            <s xml:id="echoid-s10920" xml:space="preserve">totam colli longitudinem,
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            ita ut omnis vini ſpiritus fugatus ſit, & </s>
            <s xml:id="echoid-s10921" xml:space="preserve">ut pariter emittat mul-
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            tas magnas bullas per aperturam; </s>
            <s xml:id="echoid-s10922" xml:space="preserve">quod clare indicat, eſſe
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            aërem in lagena, vel aliam materiam elaſticam ut aër, quan-
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            doquidem illa fugat ſpiritum vini longe infra ſuperficiem il-
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            lius qui eſt in vitro D contentus: </s>
            <s xml:id="echoid-s10923" xml:space="preserve">etiam ſi iterum aërem in-
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            trare ſinas in vas B, ſpiritus vini quidem adſcendet in la-
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            genam C, non autem plane illam replebit, ſed ſuperius hæ-
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            rebit ſatis notabilis aëris bulla.</s>
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          <head xml:id="echoid-head291" xml:space="preserve">EXPERIMENTUM IV.</head>
          <head xml:id="echoid-head292" style="it" xml:space="preserve">Aër, ex Spiritu vini aut aqua exhauſtus, hæc
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          corpora iterum intrat.</head>
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            <s xml:id="echoid-s10925" xml:space="preserve">SEd hic notandum, bullam illam ſi ita relinquatur per ſpatium
              <lb/>
            unius vel duarum horarum, ſemper evanuiſſe, & </s>
            <s xml:id="echoid-s10926" xml:space="preserve">in ſpi-
              <lb/>
            ritum vini, unde emerſerat, rediiſle. </s>
            <s xml:id="echoid-s10927" xml:space="preserve">Expertus etiam ſui, ſi
              <lb/>
            immittatur porro bulla veri aëris magnitudine unius piſi,
              <lb/>
            etiam illam periiſſe, poſtquam per unam noctem relicta fue-
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            rit. </s>
            <s xml:id="echoid-s10928" xml:space="preserve">Idem quoque accidit in aqua. </s>
            <s xml:id="echoid-s10929" xml:space="preserve">Sed multo majus tempus
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            requiritur, ut evaneſcat bulla.</s>
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            <s xml:id="echoid-s10931" xml:space="preserve">Quod attinet cauſam præcipui noſtri Phænomeni, ſuſpen-
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            ſionis nempe aquæ & </s>
            <s xml:id="echoid-s10932" xml:space="preserve">Mercurii, hæc eſt quam mihi perſua-
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            dere potui huc uſque omnium veriſimillimam.</s>
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            <s xml:id="echoid-s10934" xml:space="preserve">Præter preſſionem aëris, quæ ſuſtinet Mercurium ad alti-
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            tudinem 27 pollicum in experimento Torricelliano, & </s>
            <s xml:id="echoid-s10935" xml:space="preserve">quam
              <lb/>
            dari ex infinitis aliis effectibus, quos videmus, conſtat, con-
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            cipio & </s>
            <s xml:id="echoid-s10936" xml:space="preserve">aliam preſſionem illâ fortiorem materiæ aëre ſub-
              <lb/>
            tilioris, quæ haud difficulter penetrat vitrum, aquam,
              <lb/>
            Mercurium, & </s>
            <s xml:id="echoid-s10937" xml:space="preserve">omnia alia corpora quæ aëri impene-
              <lb/>
            trabilia obſervamus. </s>
            <s xml:id="echoid-s10938" xml:space="preserve">Hæc preſſio addita ad aëris preſſio-
              <lb/>
            nem poteſt ſuſtinere 75 pollices Mercurii & </s>
            <s xml:id="echoid-s10939" xml:space="preserve">forte adhuc plu-
              <lb/>
            res, quamdiu tantum agit in ſuperficiem inferiorem, vel in
              <lb/>
            ſuperficiem Mercurii, in quem aperta tubi extremitas </s>
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