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# Title: [Christiani Hugenii Zulichemii, Const. F. Horologium Oscillatorium. Sive De Motu Pendulorum Ad Horologia Aptato Demonstrationes Geometricae] Christiani Hvgenii Zvlichemii, Const. F. Horologivm Oscillatorivm. Sive De Motv Pendvlorvm Ad Horologia Aptato Demonstrationes Geometricæ (shelfmarks Leibn. Marg. 70; ZEN Leibn. Marg. 70)
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IOROLOO. OSCTLLRTOR.
a4)
surpentione cenerum olcillationis D, in polteriori vero centrum Dn centac
olcillationis E. Dico clourB AadC R Ita F A  15. 
OSC2LL A-
TTON13.
Duum enim, in suspensione ex B, efficiatur distancia AD, qua
nempe cenerum oscillacionis interius estcenero graviraris, appli-
cando ad distantiam B a spacium quoddam, cujus mulciplex lecun.
dum numerum parricularum minimarum aequalium, in quasma-
onicudo dirila incelligitur, ae quatur quadratis distantiarum ab axe
Per a, Paralleloaxiin B F; erir proinde rectangulum B a D dicto (p 2. L PTOP. P. X.
cioxqualc. Irem, in suspensione ex c, quum hat dictantia a E, ap. ced
Plicando idem dictum lpatium ad distantiam cn; erit e rectanou-
lum CaF cidem spario xquale. Itaque aqualia inter se rectangula
BAD, C aE; ac proinde ratio B a ad c a eadem qua a E 2d a D.
quod erat demonstrandum.
Flinc paret, dato pendulo simplici, quod magnicudini su lpenlx
ilochronum licin una luspentione, daroque ejus cenrro sraricatis;
etiam in alia omni sulpensione, longiori velbreriori, dummodo
idem mancat planum oscillarionis, longicudinem penduliilochro-
ni darar ell.
EROPOSITIO XX
Entrum Oscillatm es punctum suspensionis inter se
nverim.
cillarionis eu D: Cllat Hvercendo omnia, ponendoque sulpen.
iis
In figura Superiori, quia, polira luspensione ex B, cenrrum ol-