Huygens, Christiaan, Christiani Hugenii opera varia; Bd. 1: Opera mechanica

Table of contents

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[111.] PROPOSITIO XXI.
[112.] Centrum oſcillationis Circuli.
[113.] Centrum oſcillationis Rectanguli.
[114.] Centrum oſcillationis Trianguli iſoſcelis.
[115.] Centrum oſcillationis Parabolæ.
[116.] Centrum oſcillationis Sectoris circuli.
[117.] Centrum oſcillationis Circuli, aliter quam ſupra.
[118.] Centrum oſcillationis Peripheriæ circuli.
[119.] Centrum oſcillationis Polygonorum ordinatorum.
[120.] Loci plani & ſolidi uſus in hac Theoria.
[121.] PROPOSITIO XXII.
[122.] Centrum oſcillationis in Pyramide.
[123.] Centrum oſcillationis Coni.
[124.] Centrum oſcillationis Sphæræ.
[125.] Centrum oſcillationis Cylindri.
[126.] Centrum oſcillationis Conoidis Parabolici.
[127.] Centrum oſcillationis Conoidis Hyperbolici.
[128.] Centrum oſcillationis dimidii Coni.
[129.] PROPOSITIO XXIII.
[130.] PROPOSITIO XXIV.
[131.] PROPOSITIO XXV.
[132.] PROPOSITIO XXVI.
[133.] HOROLOGII OSCILLATORII PARS QUINTA.
[134.] Horologii ſecundi conſtructio.
[135.] DE VI CENTRIFUGA ex motu circulari, Theoremata. I.
[136.] II.
[137.] III.
[138.] IV.
[140.] VI.
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            cem æquat, gravitaſque plumbi inferius appenſi, nimiam
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                <emph style="sc">Descri-</emph>
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                <emph style="sc">PTIO</emph>
                <emph style="sc">Ho-</emph>
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                <emph style="sc">ROLOGII</emph>
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            movendi libertatem horologio adimunt, faciuntque ut ſi for-
              <lb/>
            te ſuccuſſu navis graviore commotum fuerit, continuo ad
              <lb/>
            quietem perpendiculumque ſuum revertatur.</s>
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          </p>
          <p>
            <s xml:id="echoid-s1100" xml:space="preserve">Et hæc quidem ita adaptata machina ut in mare deduca-
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            tur experientiæque committatur ſupereſt, quæ & </s>
            <s xml:id="echoid-s1101" xml:space="preserve">certam pe-
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            ne ſucceſſus ſpem præbet, quod iis quæ hactenus inſtituere
              <lb/>
            licuit experimentis, multo melius quam priores illæ omnem
              <lb/>
            motus diverſitatem perferre reperta ſit.</s>
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        <div xml:id="echoid-div47" type="section" level="1" n="21">
          <head xml:id="echoid-head39" xml:space="preserve">HOROLOGII OSCILLATORII</head>
          <head xml:id="echoid-head40" style="it" xml:space="preserve">PARS SECUNDA.</head>
          <head xml:id="echoid-head41" style="it" xml:space="preserve">De deſcenſu Gravium & motu eorum in Cycloide.</head>
          <head xml:id="echoid-head42" xml:space="preserve">HYPOTHESES.</head>
          <head xml:id="echoid-head43" xml:space="preserve">I.</head>
          <p style="it">
            <s xml:id="echoid-s1103" xml:space="preserve">SI gravitas non eſſet, neque aër motui corporum
              <lb/>
            officeret, unumquodque eorum, acceptum ſe-
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            mel motum continuaturum velocitate æquabili, ſe-
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            cundum lineam rectam.</s>
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        <div xml:id="echoid-div48" type="section" level="1" n="22">
          <head xml:id="echoid-head44" xml:space="preserve">II.</head>
          <p style="it">
            <s xml:id="echoid-s1105" xml:space="preserve">Nunc vero fieri gravitatis actione, undecunque
              <lb/>
            illa oriatur, ut moveantur motu compoſito, ex æ-
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            quabili quem habent in hanc vel illam partem, & </s>
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            ex motu deorſum à gravitate profecto.</s>
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          <head xml:id="echoid-head45" xml:space="preserve">III.</head>
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            <s xml:id="echoid-s1108" xml:space="preserve">Et horum utrumque ſeorſim conſiderari poſſe,
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            neque alterum ab altero impediri.</s>
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