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

Table of Notes

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          <head xml:id="echoid-head110" xml:space="preserve">XII.</head>
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            <emph style="sc">Decentro</emph>
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            <emph style="sc">OSCILLA-</emph>
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            <emph style="sc">TIONIS.</emph>
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            <s xml:id="echoid-s2764" xml:space="preserve">Eædem vero in latus agitari dicantur, cum axis
              <lb/>
            oſcillationis ad figuræ lineæve planum rectus eſt.</s>
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          <head xml:id="echoid-head111" xml:space="preserve">XIII.</head>
          <p style="it">
            <s xml:id="echoid-s2766" xml:space="preserve">Quando pondera in rectas lineas duci dicentur,
              <lb/>
            id ita eſt intelligendum, ac ſi numeri lineæve,
              <lb/>
            quantitates ponderum rationemque inter ſemutuam
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            exprimentes, ita ducantur.</s>
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        <div xml:id="echoid-div229" type="section" level="1" n="87">
          <head xml:id="echoid-head112" xml:space="preserve">HYPOTHESES.</head>
          <head xml:id="echoid-head113" xml:space="preserve">I.</head>
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            <s xml:id="echoid-s2768" xml:space="preserve">SI pondera quotlibet, vi gravitatis ſuæ, moveri
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            incipiant; </s>
            <s xml:id="echoid-s2769" xml:space="preserve">non poſſe centrum gravitatis ex ipſis
              <lb/>
            compoſitæ altius, quam ubi incipiente motu repe-
              <lb/>
            riebatur, aſcendere.</s>
            <s xml:id="echoid-s2770" xml:space="preserve"/>
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            <s xml:id="echoid-s2771" xml:space="preserve">Altitudo autem in his ſecundum diſtantiam à plano hori-
              <lb/>
            zontali conſideratur, graviaque ponuntur ad hoc planum,
              <lb/>
            ſecundum rectas ipſi perpendiculares, deſcendere conari.
              <lb/>
            </s>
            <s xml:id="echoid-s2772" xml:space="preserve">Quod idem ab omnibus, qui de centro gravitatis egerunt,
              <lb/>
            vel ponitur expreſſe, vel à legentibus ſupplendum eſt, cum abs-
              <lb/>
            que eo centri gravitatis conſideratio locum non habeat.</s>
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            <s xml:id="echoid-s2774" xml:space="preserve">Ipſa vero hypotheſis noſtra quominus ſcrupulum moveat,
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            nihil aliud ſibi velle eam oſtendemus, quam quod nemo un-
              <lb/>
            quam negavit, gravia nempe ſurſum non ferri. </s>
            <s xml:id="echoid-s2775" xml:space="preserve">Nam primo,
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            ſi unum quodpiam corpus grave proponamus, illud vi gravi-
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            tatis ſuæ altius aſcendere non poſſe extra dubium eſt. </s>
            <s xml:id="echoid-s2776" xml:space="preserve">aſcen-
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            dere autem tunc intelligitur ſcilicet, cum ejus centrum gra-
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            vitatis aſcendit. </s>
            <s xml:id="echoid-s2777" xml:space="preserve">Sed & </s>
            <s xml:id="echoid-s2778" xml:space="preserve">idem de quotlibet ponderibus, in-
              <lb/>
            ter ſe per lineas inflexiles conjunctis, concedi neceſſe eſt,
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            quoniam nihil vetat ipſa tanquam unum aliquod conſiderari.</s>
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