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

Table of Notes

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          <pb o="46" file="0072" n="73" rhead="CHRISTIANI HUGENII"/>
          <p>
            <s xml:id="echoid-s1001" xml:space="preserve">Jam poſtquam utrovis modo eorum quos diximus, ſed
              <lb/>
              <note position="left" xlink:label="note-0072-01" xlink:href="note-0072-01a" xml:space="preserve">
                <emph style="sc">Descri-</emph>
                <lb/>
                <emph style="sc">PTIO</emph>
                <emph style="sc">Ho-</emph>
                <lb/>
                <emph style="sc">@OLOGII</emph>
              .</note>
            priore potius, examen inſtitutum fuerit, ſi multum aberra-
              <lb/>
            re à media dierum longitudine horologium reperiatur, adeo
              <lb/>
            ut differentia ultra tria quatuorve prima ſcrupula aſcendat,
              <lb/>
            remedium adhibebitur aucta aut diminuta ipſius penduli longi-
              <lb/>
            tudine. </s>
            <s xml:id="echoid-s1002" xml:space="preserve">Ubi hæc tenenda eſt regula, tot ſcrupulis primis,
              <lb/>
            in ſingulos dies, motum horologii acceleratum aut retarda-
              <lb/>
            tum iri, quot {7/10} unius lineæ auferentur pendulo aut adden-
              <lb/>
            tur. </s>
            <s xml:id="echoid-s1003" xml:space="preserve">Cumque ad veram menſuram hoc pacto jam prope re-
              <lb/>
              <note position="left" xlink:label="note-0072-02" xlink:href="note-0072-02a" xml:space="preserve">TAB. II.
                <lb/>
              Fig. I.</note>
            ductum erit, reliqua correctio transpoſitione exigui ponde-
              <lb/>
            ris Δ, virgæ V V adhærentis, commode peragetur. </s>
            <s xml:id="echoid-s1004" xml:space="preserve">Id
              <lb/>
            pondus lentis formam habet, cujus ſectionem ſecundum
              <lb/>
            axem in figura 1. </s>
            <s xml:id="echoid-s1005" xml:space="preserve">expreſſimus. </s>
            <s xml:id="echoid-s1006" xml:space="preserve">Et quia tantum viceſimam
              <lb/>
            triceſimamve, aut etiam minorem, partem æquat ponderis
              <lb/>
            X, hinc fit ut ſat magnis ſpatiis è priore loco diſcedens,
              <lb/>
            haud multum tamen perpendiculi motum afficiat, acceleran-
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            do nempe quoties verſus mediam virgæ longitudinem attra-
              <lb/>
            hitur, retardando cum inde ſurſum aut deorſum movetur.
              <lb/>
            </s>
            <s xml:id="echoid-s1007" xml:space="preserve">Ne vero diu punctum illud quærendum ſit quo veriſſimam
              <lb/>
            daturum ſit dierum menſuram, diviſimus certa ratione, ex
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            motus legibus petita, inferiorem virgæ medietatem, poſito
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            nimirum pondere Δ parte quinquageſima ponderis X, pari-
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            que gravitate ipſius virgæ V V. </s>
            <s xml:id="echoid-s1008" xml:space="preserve">Quæ quidem diviſiones fi-
              <lb/>
              <note position="left" xlink:label="note-0072-03" xlink:href="note-0072-03a" xml:space="preserve">TAB. II.
                <lb/>
              Fig. 4.</note>
            gura 4 exhibentur, ubi penduli portio inferior in tres partes
              <lb/>
            ſecta cernitur, quarum, quæ infimo loco ponenda, eſt A B.
              <lb/>
            </s>
            <s xml:id="echoid-s1009" xml:space="preserve">Punctum A eſt centrum gravitatis ponderis X, à puncto
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            autem C, centro oſcillationis, partes ſingulæ, quindecim
              <lb/>
            ſcrupulorum ſecundorum differentiam diurnam efficiunt, ubi
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            tali intervallo mota fuerit lens Δ. </s>
            <s xml:id="echoid-s1010" xml:space="preserve">Demonſtratio autem divi-
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            ſionumque inventio, dabitur in iis quæ de Centro Oſcilla-
              <lb/>
            tionis.</s>
            <s xml:id="echoid-s1011" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1012" xml:space="preserve">Cæterum illorum quoque quæ mari vehuntur, longitu-
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            dinum inveſtigandarum gratiâ, formam hic deſcriberemus,
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            ſi quænam maxime ad hunc uſum accommodata ſit, æque
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            ac in præcedentibus, exploratum determinatumque habere-
              <lb/>
            mus; </s>
            <s xml:id="echoid-s1013" xml:space="preserve">etſi quidem jam nunc eo res deducta ſit, ut </s>
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