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

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            <s xml:id="echoid-s370" xml:space="preserve">
              <pb o="9" file="0033" n="33" rhead="HOROLOGIUM."/>
            parvo in circello ſingula prima ſcrupula diſtinguens. </s>
            <s xml:id="echoid-s371" xml:space="preserve">Hoc
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            verò ſuperior index horarum Λ convertitur: </s>
            <s xml:id="echoid-s372" xml:space="preserve">& </s>
            <s xml:id="echoid-s373" xml:space="preserve">ſupra hunc
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            denique Σ index, quem dixi, ſecundorum. </s>
            <s xml:id="echoid-s374" xml:space="preserve">Hæc autem,
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            uti & </s>
            <s xml:id="echoid-s375" xml:space="preserve">tympanorum omnium diſpoſitio ac dentium numerus,
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            cum multimodis variari poſſint, nos hunc unum in exem-
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            plum proponere ſatis habuimus, eumque experientia com-
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            probatum. </s>
            <s xml:id="echoid-s376" xml:space="preserve">Itaque & </s>
            <s xml:id="echoid-s377" xml:space="preserve">dentium multitudinem in ſingulis tym-
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            panis deſignabimus, eam quæ huic formæ optime convenire
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            viſa eſt. </s>
            <s xml:id="echoid-s378" xml:space="preserve">I
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            n circumferentia rotarum ſingularum E H ſeptua-
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            geni bini ſunt, ſeni in tympanis G & </s>
            <s xml:id="echoid-s379" xml:space="preserve">K. </s>
            <s xml:id="echoid-s380" xml:space="preserve">rota L viginti
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            quinque habet, tympanum O decem. </s>
            <s xml:id="echoid-s381" xml:space="preserve">rota P viginti, vel
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            tantum partem horum aliquam, quia, ut dixi, totam den-
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            tibus inſecari nihil opus eſt. </s>
            <s xml:id="echoid-s382" xml:space="preserve">Penduli longitudo S I T pedis
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            Rhenolandici, qui ad Romanum veterem proxime accedit,
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            dextantem circiter æquat, & </s>
            <s xml:id="echoid-s383" xml:space="preserve">cuique vibrationi ſimplici im-
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            pendit ſemiſcrupulum ſecundum. </s>
            <s xml:id="echoid-s384" xml:space="preserve">ad quam menſuram obſer-
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            vationibus ad ſolem vel ad aliud hujus generis horologium
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            comparatis non difficile perducitur. </s>
            <s xml:id="echoid-s385" xml:space="preserve">Ea longitudo rotis ita
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            ordinatis convenit: </s>
            <s xml:id="echoid-s386" xml:space="preserve">& </s>
            <s xml:id="echoid-s387" xml:space="preserve">exquiſitam motus æqualitatem, quæ-
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            que etiam Aſtronomicis uſibus ſufficiat, præſtare valet.
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            </s>
            <s xml:id="echoid-s388" xml:space="preserve">Quod ſi tamen concinnitate operis inſuper habita, quadru-
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            plo majus pendulum adhibeatur, vel ultra etiam producatur,
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            rotis interim majoribus quoque adſumptis, haud dubiè len-
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            tioribus oſcillationibus tutius etiam fidemus. </s>
            <s xml:id="echoid-s389" xml:space="preserve">Et jam in ma-
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            gnis publicis Horologiis, egregio ſucceſſu, perpendicula
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            ejusmodi prælonga uſurpari vidimus, alibi duodecim, alibi
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            vicenûm pedum, cum appenſa ſphæra 25 vel 30 librarum. </s>
            <s xml:id="echoid-s390" xml:space="preserve">
              <lb/>
            Cæterum revertendo ad ea quæ hic poſita fuere, apparet
              <lb/>
            quidem, rota E ſemel circumacta, duodecies converti ro-
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            tam H. </s>
            <s xml:id="echoid-s391" xml:space="preserve">centies vero quadragies & </s>
            <s xml:id="echoid-s392" xml:space="preserve">quater eam quæ ſequitur
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            L. </s>
            <s xml:id="echoid-s393" xml:space="preserve">Quæ cum dentes 25 habeat, 3600 vicibus alternatim im-
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            pellit lamellas M. </s>
            <s xml:id="echoid-s394" xml:space="preserve">N. </s>
            <s xml:id="echoid-s395" xml:space="preserve">ac totidem recurſus duplices facit pen-
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            dulum S I T. </s>
            <s xml:id="echoid-s396" xml:space="preserve">Cumque 3600 ſcrupula ſecunda, horâ unâ
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            contineantur; </s>
            <s xml:id="echoid-s397" xml:space="preserve">hinc horæ ſpatio rota E ſemel convertetur. </s>
            <s xml:id="echoid-s398" xml:space="preserve">
              <lb/>
            Quamobrem & </s>
            <s xml:id="echoid-s399" xml:space="preserve">circulus indici Ψ ſubjectus in 60 partes divi-
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            ditur, quæ prima ſcrupula ſignificent. </s>
            <s xml:id="echoid-s400" xml:space="preserve">Rota vero H </s>
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