Huygens, Christiaan
,
Christiani Hugenii opera varia; Bd. 1: Opera mechanica
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34
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61
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CHRISTIANI HUGENII
"/>
mineret, debet enim prominere neceſſario ut affigi poſſit cla-
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.</
note
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vula S, quæ ſimul cum eo verſationes faciat. </
s
>
<
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xml:space
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">Eſt autem hic
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motus reciprocus, nunc in hanc nunc in illam partem,
<
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/>
quum dentes rotæ K alternatim occurrant pinnulis L L, no-
<
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tâ vulgo ratione, quæque proinde diligentiori explicatione
<
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non indiget.</
s
>
<
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</
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<
s
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xml:space
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">Porro clavula S, ima ſui parte reflexa ac foramine ob-
<
lb
/>
longo terebrata, penduli virgam ferream, cui plumbum X
<
lb
/>
affixum eſt, amplectitur. </
s
>
<
s
xml:id
="
echoid-s807
"
xml:space
="
preserve
">Hæc vero virga ſupernè duplici
<
lb
/>
filo ſuſpenſa eſt inter geminas lamellas, quarum una T hic
<
lb
/>
tantum cernitur; </
s
>
<
s
xml:id
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xml:space
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preserve
">itaque alteram figuram juxta deſcripſi-
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lb
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mus, quæ utriusque formam flexumque & </
s
>
<
s
xml:id
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xml:space
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">totam hanc
<
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<
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xlink:label
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xlink:href
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xml:space
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">TAB. II.
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Fig. 2.</
note
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ſuſpendendi penduli rationem exprimeret. </
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>
<
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xml:space
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vera laminarum iſtarum curvatura pluribus poſtea agendum
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erit.</
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<
s
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xml:space
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">Nunc autem ut de motu horologii dicamus, nam reliquas
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figuræ partes poſtea exequemur, facile equidem apparet & </
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<
s
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<
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vi rotarum, à pondere tractarum, perpendiculi V X mo-
<
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/>
tum ſuſtentari, poſtquam ſemel manu incitatum fuerit; </
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>
<
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">& </
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ſimul perpendiculi ſtatos recurſus rotis univerſis, totique
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adeo horologio movendi legem normamque præſcribere.
<
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/>
</
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>
<
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xml:space
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">Clavula enim, quantumvis levi rotarum impulſu acta, non
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/>
tantum obſequitur trahenti perpendiculo, ſed & </
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>
<
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xml:space
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">ſingulis re-
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curſibus paulisper ejus motum adjuvat, atque ita perennem
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/>
reddit, qui alioqui ſua ſponte, vel verius occurſu aëris,
<
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deficeret paulatim, vergeretque ad quietem. </
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>
<
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xml:space
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">Rurſus vero,
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quum ejusmodi ſit natura penduli ut eodem ſemper tenore
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feratur, neque ab eo ulla ratione præterquam mutata longi-
<
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/>
tudine dimoveri poſſit; </
s
>
<
s
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xml:space
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">utique poſtquam flexu lamellarum,
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inter quas ſuſpenſum eſt, æqualitatem illam conſequuti fui-
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mus; </
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>
<
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xml:space
="
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">nequaquam permittitur rotæ K, ut nunc citius nunc
<
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/>
tardius incedat, etſi ſæpe, ut in vulgaribus horologiis, id
<
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/>
facere conetur; </
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>
<
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xml:space
="
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">ſed neceſſario ſinguli dentes ejus coguntur
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/>
æqualibus tranſire temporibus. </
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>
<
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xml:space
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">Hinc vero manifeſtum eſt,
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& </
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<
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">reliquarum quæ præcedunt rotarum, & </
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>
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">denique etiam
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indicum æquabiles converſiones effici, cum omnia </
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