Huygens, Christiaan
,
Christiani Hugenii opera varia; Bd. 1: Opera mechanica
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DE CENTRO OSCILL.
"/>
inter ſe ſuperficies. </
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<
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xml:space
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">& </
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<
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">ad axem perpendiculares; </
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<
s
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echoid-s4875
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xml:space
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">formari debet, ſecun-
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dâ ſectione, planum vel ſuperficies curva diſtantiarum inter il-
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lorum centra Oſcillationis & </
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<
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xml:space
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">axem †, circa cujus puncta mo-
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ventur. </
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<
s
xml:id
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echoid-s4877
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xml:space
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">Sic in ſummâ centrorum, quæ ab unâ parte rectas lineas ter-
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minant, ex quibus planum hoc, vel ſuperficies illa curva, compoſita
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eſt, habetur Pendulum magis ſimplex quam ſolidum, & </
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>
<
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xml:space
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">cujus vibra-
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tio æque diuturna eſt. </
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<
s
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echoid-s4879
"
xml:space
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">Centrum Oſcillationis novi illius Penduli de-
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terminabitur transferendo omnia illa centra Oſcillationis particularia
<
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ad Axem qui eſt eorum numerus, & </
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<
s
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xml:space
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">ponendo illum axem ita mo-
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veri, ut puncta ejus percurrant eosdem arcus ac centra. </
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>
<
s
xml:id
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echoid-s4881
"
xml:space
="
preserve
">Si ſoli-
<
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da propoſita ſint Prismata recta, habebunt eadem Oſcil-
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lationis centra, ac eorum baſes, ſi hæ fuerint perpendicula-
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res ad axem.</
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<
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</
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<
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<
s
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echoid-s4883
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xml:space
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">Sic centrum Oſcillationis ſolidi pendet a centris Oſcillationis certa-
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rum ſuperficierum motarum circa punctum, quarum commune O-
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ſcillationis centrum eſt centrum Oſcillationis lineæ rectæ motæ circa
<
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aliam rectam vel curvam; </
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<
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xml:space
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">ita ut non requirantur aliæ regulæ pro cor-
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poribus quam pro lineis & </
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<
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">ſuperficiebus.</
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<
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">MONITUM.</
emph
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<
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xml:space
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">Obſervationes Abbatis Catelani primum editæ fuere in
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25 diario Pariſienſi anni 1681, & </
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<
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xml:space
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">examen Mathematicum in
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29 diario ejusdem anni. </
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<
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xml:space
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">Scripta ambo in primo diario
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ſequentis anni iterum extant, cum monitu varia defici in
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prima editione, quam ſolam Hugenius viderat cum reſpon-
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dit; </
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<
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xml:space
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">& </
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<
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xml:space
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">in qua non reperiuntur ea quæ minori charactere hic
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edita ſunt. </
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<
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xml:space
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">Sola verba ſequentia in prima dantur & </
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>
<
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xml:id
="
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xml:space
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">in ſe-
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cunda fuere omiſſa poſt †. </
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>
<
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="
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xml:space
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">centrum Oſcillationis hujus plani
<
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coincidet cum centro Oſcillationis ſolidorum illorum.</
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<
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">III.</
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">Excerpta ex literis Domini Hugenii, quibus re-
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ſpondet obſervationi Abbatis Catelani in 4
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. pro-
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poſitionem Tractatus de centris Oſcillationis.</
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<
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">ADmiratus vidi, Theoriam meam de centro Oſcillationis
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oppugnari, contra quam per 9 annos, a quibus </
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