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

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              <pb o="13" file="0037" n="37" rhead="HOROLOGIUM."/>
            vel ad duplum pondere Δ, non propterea penduli motus
              <lb/>
            acceleretur, aut horologii curſus alteretur, quod in omni-
              <lb/>
            bus aliis hactenus uſitatis ſecus accidit. </s>
            <s xml:id="echoid-s456" xml:space="preserve">Alteram penduli in-
              <lb/>
            æqualitatem, vir Aſtronomiæ ſtudiis clarus, Gothofr. </s>
            <s xml:id="echoid-s457" xml:space="preserve">Wen-
              <lb/>
            delinus, primus & </s>
            <s xml:id="echoid-s458" xml:space="preserve">ſolus, ut opinor, prodidit; </s>
            <s xml:id="echoid-s459" xml:space="preserve">expertum
              <lb/>
            ſeſe ſcribens, ejuſdem penduli velociores eſſe oſcillationes
              <lb/>
            hyemali tempore quam æſtivo idque notabili differentia.
              <lb/>
            </s>
            <s xml:id="echoid-s460" xml:space="preserve">Sed quoniam in eo examine arenaria tantum horologia,
              <lb/>
            vulgariaque automata ſeſe adhibuiſſe fatetur, cum ſcioteri-
              <lb/>
            cis, fortaſſe non nimia cura deſcriptis; </s>
            <s xml:id="echoid-s461" xml:space="preserve">multi, quam recte
              <lb/>
            ſe haberet hæc ipſius obſervatio, dubitarunt. </s>
            <s xml:id="echoid-s462" xml:space="preserve">Mihi certe
              <lb/>
            nihil ejusmodi licuit animadvertere. </s>
            <s xml:id="echoid-s463" xml:space="preserve">Quin contra, & </s>
            <s xml:id="echoid-s464" xml:space="preserve">mino-
              <lb/>
            ribus horologiis, quibus ſemipedale eſt pendulum, & </s>
            <s xml:id="echoid-s465" xml:space="preserve">ma-
              <lb/>
            joribus, in quibus 24 fere pedes æquat, eandem perpetuo
              <lb/>
            longitudinem, brumæ tempore ac æſtate media, convenire
              <lb/>
            expertus ſum. </s>
            <s xml:id="echoid-s466" xml:space="preserve">Quæ longitudo ſaltem ſeptima ſui parte per
              <lb/>
            hyemem productior eſſe deberet, ſi Wendelini vera foret
              <lb/>
            opinio.</s>
            <s xml:id="echoid-s467" xml:space="preserve"/>
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          <p>
            <s xml:id="echoid-s468" xml:space="preserve">Aſſerta igitur & </s>
            <s xml:id="echoid-s469" xml:space="preserve">hac in parte automati noſtri motus æ-
              <lb/>
            quabilitate & </s>
            <s xml:id="echoid-s470" xml:space="preserve">conſtantia, finem jam deſcriptioni impone-
              <lb/>
            mus; </s>
            <s xml:id="echoid-s471" xml:space="preserve">multa quæ his addi præterea poſſent, artificum indu-
              <lb/>
            ſtriæ relinquentes, qui rationem inventi hujus edocti, non
              <lb/>
            difficile reperient quo pacto illud varii generis horologiis,
              <lb/>
            atque iis etiam quæ pridem ad veterem formam fabricata
              <lb/>
            ſunt, applicari queat. </s>
            <s xml:id="echoid-s472" xml:space="preserve">Nos quidem apud eum, cujus opera
              <lb/>
            primum in his fabricandis uſi ſumus, talia quoque confecta
              <lb/>
            vidimus, quæ non pondere, ſed elateris vi moverentur. </s>
            <s xml:id="echoid-s473" xml:space="preserve">In
              <lb/>
            quibus, cum antehac pyramide illa æquatoria, chordaque
              <lb/>
            huic circumvoluta opus eſſet, quorum ope adæquarentur
              <lb/>
            primi ac poſtremi elateris impetus; </s>
            <s xml:id="echoid-s474" xml:space="preserve">nunc iis omiſſis, ipſi
              <lb/>
            tympano, cui elater incluſus eſt, dentes adduntur. </s>
            <s xml:id="echoid-s475" xml:space="preserve">Nam
              <lb/>
            licet hoc modo non æque in fine ac principio vigeat pendu-
              <lb/>
            li motus, non tamen eo lentiores ſub finem oſcillationes effi-
              <lb/>
            ciuntur, uti ſuperius fuit demonſtratum. </s>
            <s xml:id="echoid-s476" xml:space="preserve">Elater vero ea
              <lb/>
            parte, qua ad centrum convolutus eſt, intenditur, atque
              <lb/>
            ita cavetur ne quo temporis momento curſus horologii </s>
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