Huygens, Christiaan
,
Christiani Hugenii opera varia; Bd. 1: Opera mechanica
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CHRISTIANI HUGENII
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ſtituta erat. </
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pendulo ſimplici naturâ non inerat, cum latiores excurſus
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anguſtioribus tardiores obſerventur; </
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<
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xml:space
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">ſed geometria duce di-
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verſam ab ea, ignotamque antea penduli ſuſpenſionem re-
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perimus, animadverſâ lineæ cujusdam curvaturâ, quæ ad
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optatam æqualitatem illi conciliandam mirabili planè ratione
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comparata eſt. </
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<
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xml:space
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">Quam poſtquam horologiis adhibuimus,
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tam conſtans certusque eorum motus evaſit, ut poſt crebra
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experimenta terra marique capta, manifeſtum jam ſit & </
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Aſtronomiæ ſtudiis & </
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præſidii. </
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">Hæc ea eſt linea quam defixus in circumferentia
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currentis rotæ clavus, continua circumvolutione, in aëre
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deſignat; </
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<
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xml:space
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">à Geometris noſtri ævi cycloidis nomine donata,
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& </
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xml:space
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">à no-
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bis verò propter eam quam diximus menſurandi temporis
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facultatem, quam nihil tale ſuſpicantes, ac tantùm artis ve-
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ſtigiis inſiſtentes, ineſſe ipſi comperimus. </
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<
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xml:space
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">Hanc cum jam
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pridem amicis horum intelligentibus notam fecerimus (nam
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non multo poſt primam horologii editionem animadverſa
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fuit) nunc eandem, demonſtratione quàm potuimus accu-
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ratiſſima firmatam, omnibus legendam proponimus. </
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in hac tradenda demonſtratione potiſſima pars hujus libri
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verſabitur. </
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ſtrationibus ſtabilire & </
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">promovere ulterius viri maximi Ga-
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lilei de deſcenſu gravium doctrinam, cujus fructus deſidera-
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tiſſimus, atque apex veluti ſummus, hæc ipſa quam inve-
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nimus cycloidis eſt proprietas.</
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<
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">Quæ porro ut ad pendulorum uſum aptari poſſet, nova cur-
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varum linearum conſideratio adhibenda fuit, earum </
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