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

Page concordance

< >
Scan Original
61 34
62 35
63 36
64 37
65 38
66 39
67 40
68 41
69 42
70 43
71 44
72 45
73 46
74
75
76
77 47
78 48
79
80
81
82 49
83 50
84 51
85 52
86
87
88
89 53
90 54
< >
page |< < (39) of 434 > >|
    <echo version="1.0RC">
      <text xml:lang="la" type="free">
        <div xml:id="echoid-div27" type="section" level="1" n="20">
          <p>
            <s xml:id="echoid-s899" xml:space="preserve">
              <pb o="39" file="0065" n="66" rhead="HOROLOG. OSCILLATOR."/>
            um planè eadem conſtanter maneret. </s>
            <s xml:id="echoid-s900" xml:space="preserve">Sed cum pauxillum
              <lb/>
              <note position="right" xlink:label="note-0065-01" xlink:href="note-0065-01a" xml:space="preserve">
                <emph style="sc">Descri-</emph>
                <lb/>
                <emph style="sc">PTIO</emph>
                <emph style="sc">Ho-</emph>
                <lb/>
                <emph style="sc">ROLOGII</emph>
              .</note>
            quandoque excedat vel deficiat, ex multis minimis differen-
              <lb/>
            tiolis tandem magna ſatis conflatur, idque ita eſſe reipſa
              <lb/>
            atque experimentis evincitur. </s>
            <s xml:id="echoid-s901" xml:space="preserve">Etſi enim eadem ſemper ſit
              <lb/>
            ponderis vis, rotæ ſibi proximæ reſpectu, tamen per tot
              <lb/>
            alias transdita, quantâcunque curâ limatæ fuerint, non
              <lb/>
            ſemper eadem ad perpendiculum usque pervenit. </s>
            <s xml:id="echoid-s902" xml:space="preserve">Præter-
              <lb/>
            quam quod frigore quoque difficilior motus rotarum effici-
              <lb/>
            tur; </s>
            <s xml:id="echoid-s903" xml:space="preserve">itemque evaneſcente aut ſordeſcente quod illis additur
              <lb/>
            oleo. </s>
            <s xml:id="echoid-s904" xml:space="preserve">Sed præcipue inæquales fiunt oſcillationes horologiis
              <lb/>
            quæ mari vehuntur, ob jactationem navis continuam, adeo
              <lb/>
            ut omnibus quidem in univerſum, ſed his maxime omnium
              <lb/>
            remedio opus ſit, quo reciprocationum Penduli latiorum
              <lb/>
            anguſtiorumque tempora æqualia evadant.</s>
            <s xml:id="echoid-s905" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s906" xml:space="preserve">Ad definiendam ergo lamellarum formam in quibus poſi-
              <lb/>
            tum eſt remedium iſtud, in primis Penduli longitudinem
              <lb/>
            ſtatuiſſe oportet, quæ facile ex eo habetur, quod ſint inter
              <lb/>
            ſe longitudines perpendiculorum, ſicut temporum quæ in
              <lb/>
            ſingulos recurſus impenduntur quadrata. </s>
            <s xml:id="echoid-s907" xml:space="preserve">Adeo ut cum tri-
              <lb/>
            bus pedibus definiverimus longitudinem perpendiculi quod
              <lb/>
            ſcrupula ſecunda metitur, ejus quarta pars, ſive unciæ no-
              <lb/>
            vem debeantur ei quod ſemiſecunda notaturum ſit. </s>
            <s xml:id="echoid-s908" xml:space="preserve">Item ſi
              <lb/>
            Penduli longitudo quæratur, cujus recurſus ſimplices 10000
              <lb/>
            horæ ſpatio peragantur, hoc modo ratio inibitur. </s>
            <s xml:id="echoid-s909" xml:space="preserve">Penduli
              <lb/>
            nempe tripedalis ſcimus 3600 recurſus in horas ſingulas nu-
              <lb/>
            merari: </s>
            <s xml:id="echoid-s910" xml:space="preserve">ergo hujus recurſuum tempora ſingula, majora ſunt
              <lb/>
            temporibus Penduli quæſiti, proportione 10000 ad 3600,
              <lb/>
            ſive 25 ad 9. </s>
            <s xml:id="echoid-s911" xml:space="preserve">Quare ut quadratum numeri 25 ad quadra-
              <lb/>
            tum 9, hoc eſt, ut 625 ad 81, ita erit longitudo pedum 3
              <lb/>
            ad eam quæ quærebatur, nempe unciarum 4 cum {66/100}.</s>
            <s xml:id="echoid-s912" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s913" xml:space="preserve">Poſita ergo longitudine perpendiculi, puta pedum trium
              <lb/>
            in horologio à nobis propoſito, inde Cycloïs linea, quæ
              <lb/>
            curvaturam laminarum T datura eſt, hoc modo deſcribe-
              <lb/>
            tur.</s>
            <s xml:id="echoid-s914" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s915" xml:space="preserve">Super tabula plana affigatur regula A B, ſemidigiti craſſitu-
              <lb/>
              <note position="right" xlink:label="note-0065-02" xlink:href="note-0065-02a" xml:space="preserve">TAB. III.
                <lb/>
              Fig. 1.</note>
            dine. </s>
            <s xml:id="echoid-s916" xml:space="preserve">Deinde fiat cylindrus C D E eadem illa altitudine, </s>
          </p>
        </div>
      </text>
    </echo>
Impressum