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

Table of contents

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[111.] PROPOSITIO XXI.
[112.] Centrum oſcillationis Circuli.
[113.] Centrum oſcillationis Rectanguli.
[114.] Centrum oſcillationis Trianguli iſoſcelis.
[115.] Centrum oſcillationis Parabolæ.
[116.] Centrum oſcillationis Sectoris circuli.
[117.] Centrum oſcillationis Circuli, aliter quam ſupra.
[118.] Centrum oſcillationis Peripheriæ circuli.
[119.] Centrum oſcillationis Polygonorum ordinatorum.
[120.] Loci plani & ſolidi uſus in hac Theoria.
[121.] PROPOSITIO XXII.
[122.] Centrum oſcillationis in Pyramide.
[123.] Centrum oſcillationis Coni.
[124.] Centrum oſcillationis Sphæræ.
[125.] Centrum oſcillationis Cylindri.
[126.] Centrum oſcillationis Conoidis Parabolici.
[127.] Centrum oſcillationis Conoidis Hyperbolici.
[128.] Centrum oſcillationis dimidii Coni.
[129.] PROPOSITIO XXIII.
[130.] PROPOSITIO XXIV.
[131.] PROPOSITIO XXV.
[132.] PROPOSITIO XXVI.
[133.] HOROLOGII OSCILLATORII PARS QUINTA.
[134.] Horologii ſecundi conſtructio.
[135.] DE VI CENTRIFUGA ex motu circulari, Theoremata. I.
[136.] II.
[137.] III.
[138.] IV.
[140.] VI.
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11974CHRISTIANI HUGENII gens A B, eodem arcu C B major erit. quod erat demon-
11De motu
IN Cy-
CLOIDE.
ſtrandum.
PROPOSITIO XIX.
IIsdem poſitis, ſi tertia recta prioribus parallela
22TAB. VIII.
Fig. 5.
D K circulum ſecet, quæ tantundem diſtet ab ea
quæ remotior eſt à centro quantum hæc à reliqua
A F:
Erit pars tangentis in B, à parallela me-
dia, &
ultimo addita D K, intercepta, nimirum
B D, major arcu B C.
Hoc enim manifeſtum eſt cum B D fiat ipſi B A æqualis,
quam oſtendimus arcu B C majorem eſſe.
PROPOSITIO XX.
SI arcus circuli, ſemicircumferentia minor, A B,
33TAB. VIII.
Fig. 6.
in partes quotlibet ſecetur lineis rectis paralle-
lis, quæ &
inter ſe, & cum rectis ſibi parallelis
per terminos arcus ductis, æqualia intervalla con-
ſtituant, quales ſunt C D, E F, G H, K L &
c.
ducanturque ad terminum arcus alterutrum A, &
ad reliqua omnia ſectionum puncta rectæ circumfe-
rentiam tangentes, omnes in eandem partem, &

ut unaquæque occurrat proximæ dictarum paralle-
larum;
cujusmodi ſunt tangentes A C, D E, F G,
H K &
c. Dico has tangentes, dempta prima A C,
ſimul ſumptas, minores eſſe arcu propoſito A B.

Easdem vero omnes, non omiſſa A C, majores eſſe
arcu A B diminuto parte extrema N B, hoc eſt,
majores arcu A N.
Ponamus enim primo perallelarum aliquas tranſire ab

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