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

Table of handwritten notes

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273171HOROLOG. OSCILLATOR. Cujus quadratum auferendo à rectangulo H G F, quod erat
11De centro
OSCILLA-
TIONIS.
{3/20} quadrati B C, fiet rectangulum G F H = {3/20} b b - {1b4/4 q q}.
Hoc
autem
rectangulum, multiplex per numerum particularum
ſemiconi
A B C, æquatur quadratis diſtantiarum à plano
M
D O.
At quadratis diſtantiarum à plano N D æquantur,
ut
in cono, {3/80} quadrati A B, ſive {3/80} a a, multiplices per
numerum
particularum ſemiconi A B C.
Itaque, totum ſpa-
tium
applicandum, æquabitur hic {3/80} a a + {3/20} b b - {1 b 4/4 q q}.
Porro, etiam ſemicylindri, & ſemiconoidis parabolici,
centra
agitationis inveniri poſſunt, atque aliorum inſuper ſe-
miſolidorum
;
quæ aliis inveſtiganda relinquimus.

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