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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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HOROLOG OSGILLATOR.
PRODOSFEIO RXII
Nona in solidis ficuris, oscillationis centra inve-
aloblobor.
centrum oscillationis invenire licebit. Si enim sic Polidum aBC,
Cuspenlum ab axe, qui, per punctum e, incelligitur hujus pagina
Plano ad rectos ansulos; centrum aurem gravitatis (ic F: ductis
jam per F planis EFD, C F H, quorum posterius sit horizonti pa-
rallelum, alterum veroper axem e tranlear; inventilque, per pro-
Policionem 14, Cummis quadrarorum a distanciis parricularum
(olidi a B C a plano OFE, itemque a plano eF D; hoc elt, inven-
tisrectangulis uerisque, quae, mulciplicia secundum numerum di-
ctarum particularum, a qualia sint dictis quadrarorum summis; re-
ctangula haec applicara ad dictantiam E F, quanempearis lu spen-
Tionis distar a centro sravicaris, dabune interrallum EK, quo cen-
trum agitationis x interius est cenero graricaris r. HIoc enim pa-
cet expropolirione 18. Dabimus aurem ee horum exempla aliquor.
DE CFAXKO
SCLLL a
C16N23.
In Colidis porro figuris facile quoque, per anre demonstrata.
Centrum oscillationis in P gramide.
qui, per Verticem a, Tit hujus Pastxe plano ad angulos rectos.
Fllc figura plana proportionalis r, à latere adponenda, le-
cundum proponcrmi, Ccabie ex residuis parabolicis o
Sic primum a B C prramis, verticem habens a axem AD, batin
veroquadratum, cujus latus B c. ponatur que agicari circa axem
ev, qua spe oper du cclangulis 2 e, auteruntur se
miparabole or 2, verricem habenTCSO.