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

Page concordance

< >
Scan Original
141 87
142 88
143
144 90
145 91
146 92
147
148
149
150 93
151 94
152 95
153 96
154
155
156
157 97
158 98
159 99
160 100
161 101
162 102
163 103
164 104
165
166
167
168 105
169 106
170
< >
page |< < (178) of 434 > >|
    <echo version="1.0RC">
      <text xml:lang="la" type="free">
        <div xml:id="echoid-div368" type="section" level="1" n="130">
          <p>
            <s xml:id="echoid-s4028" xml:space="preserve">
              <pb o="178" file="0254" n="280" rhead="CHRISTIANI HUGENII"/>
            eſt. </s>
            <s xml:id="echoid-s4029" xml:space="preserve">Fit enim hoc modo, ex motus natura, ut eandem per-
              <lb/>
              <note position="left" xlink:label="note-0254-01" xlink:href="note-0254-01a" xml:space="preserve">
                <emph style="sc">De centro</emph>
                <lb/>
                <emph style="sc">OSCILLA-</emph>
                <lb/>
                <emph style="sc">TIONIS</emph>
              .</note>
            petuo poſitionem, reſpectu horizontalis plani, ſphæra pen-
              <lb/>
            duli ſervet, atque ita puncta ejus quævis, æque ac cen-
              <lb/>
            trum ipſum, cycloides eaſdem percurrant. </s>
            <s xml:id="echoid-s4030" xml:space="preserve">Unde ceſſat hic
              <lb/>
            jam centrorum oſcillationis conſideratio; </s>
            <s xml:id="echoid-s4031" xml:space="preserve">nec minus perfectam
              <lb/>
            temporum æqualitatem tale pendulum conſequitur, quam ſi
              <lb/>
            puncto unico omnis ejus gravitas contineretur.</s>
            <s xml:id="echoid-s4032" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div370" type="section" level="1" n="131">
          <head xml:id="echoid-head157" xml:space="preserve">PROPOSITIO XXV.</head>
          <p style="it">
            <s xml:id="echoid-s4033" xml:space="preserve">DE menſuræ univerſalis, & </s>
            <s xml:id="echoid-s4034" xml:space="preserve">perpetuæ, conſti-
              <lb/>
            tuendæ ratione.</s>
            <s xml:id="echoid-s4035" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s4036" xml:space="preserve">Certa, ac permanens magnitudinum menſura, quæ nullis
              <lb/>
            caſibus obnoxia ſit, nec temporum injuriis, aut longinquita-
              <lb/>
            te aboleri aut corrumpi poſſit, res eſt & </s>
            <s xml:id="echoid-s4037" xml:space="preserve">utiliſſima, & </s>
            <s xml:id="echoid-s4038" xml:space="preserve">à
              <lb/>
            multis pridem quæſita. </s>
            <s xml:id="echoid-s4039" xml:space="preserve">Quæ ſi priſcis temporibus reperta
              <lb/>
            fuiſſet, non tam perplexæ nunc forent, de pedis Romani,
              <lb/>
            Græci, Hebræique veteris modulo, diſceptationes. </s>
            <s xml:id="echoid-s4040" xml:space="preserve">Hæc ve-
              <lb/>
            ro menſura, Horologii noſtri opera, facile conſtituitur; </s>
            <s xml:id="echoid-s4041" xml:space="preserve">cum
              <lb/>
            ſine illo nequaquam, aut ægre admodum, haberi poſſit. </s>
            <s xml:id="echoid-s4042" xml:space="preserve">Etſi
              <lb/>
            enim, ſimplici pendulorum oſcillatione, hoc à quibuſdam
              <lb/>
            tentatum fuerit, numerando recurſus qui tota cæli conver-
              <lb/>
            ſione continentur, vel parte ejus cognita, per fixarum ſtel-
              <lb/>
            larum diſtantias, ſecundum aſcenſionem rectam; </s>
            <s xml:id="echoid-s4043" xml:space="preserve">nec certi-
              <lb/>
            tudo eadem hoc modo, quæ adhibitis horologiis, contingit,
              <lb/>
            & </s>
            <s xml:id="echoid-s4044" xml:space="preserve">labor longe eſt moleſtiſſimus ac tædioſiſſimus, propter
              <lb/>
            numerandi ſolicitudinem. </s>
            <s xml:id="echoid-s4045" xml:space="preserve">Quia autem, præter horologia,
              <lb/>
            aliquid, ad exactiſſimam hujus menſuræ inquiſitionem,
              <lb/>
            etiam centrorum oſcillationis notitia confert; </s>
            <s xml:id="echoid-s4046" xml:space="preserve">ideo hic de-
              <lb/>
            mum, poſt eorum tractationem, hanc determinationem ſub-
              <lb/>
            jicimus.</s>
            <s xml:id="echoid-s4047" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s4048" xml:space="preserve">Aptiſſima huic rei ſunt horologia, quorum oſcillationes
              <lb/>
            ſingulæ ſecunda ſcrupula, vel eorum ſemiſſes, notant, quæ-
              <lb/>
            que indicibus etiam, ad ea demonſtranda, inſtructa ſunt.
              <lb/>
            </s>
            <s xml:id="echoid-s4049" xml:space="preserve">Poſtquam enim, ad mediocrem dierum longitudinem, </s>
          </p>
        </div>
      </text>
    </echo>
Impressum