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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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etOROLOG. OSCTLLATOR
lonsitudine suspenta, inveniatur, in luperioribus demonstratum DE CEHEne
CAt. Nempe, litiat ur distantia incer punctum suspensionis _ spha- 21bd. S
excentrum, ad semidiametrum ejus, ica hraec ad aliam; ejus duas
quintas, a centro deorlum acceptas, terminari in quaelico olcilla-
tionis centro. Facile aurem apparet cur necestaria lit hujus ceneri
consideratio, ad accuratam pedis FTorarii consticutionem. Nam, SI
a puncto suspensionis ad sphaera centrum dictantia accipiatur,
Sphaera aurem magnicudo non detiriatur proportione ad tili lon-
Fitudinem, non erir certa mensura penduli cujus recurlus secun-
da Ccrupulametiantur; Ced quo major erit ejus lphaera, hoc minor
inveniecurmensurailla, inter centrum sphaerx _ punctum suspen-
Tionis intercepra. Ouia in iloctironis pendulis, centra quidem
olcillationis a punctis suspentionum aequalirer diltant; amplius
aucem descendir cenrrum olcillarionis inFTA CCNErUM (PMXEE
majoris, quam minoris.
Fidc necesse fuit illis, qui, arte hanc centri oscillatorii deter-
minarionem, menturx univerlalis constitmendae rationem inie
runr; quod, jam inde a prima FTorolosii nostriinventione, nobilis
illa Societas Regia Anglicana libinegorium lumplit, e recentius
doctissimus Astronomus Lusdunenlis, Cabricl Mouronus; his, in-
quam, necesse fuit designare globuli luspensi diametrum, vel pro-
Portione certa ad fili lonsitudinem, cujus nempe cricelimam vel
aliam parrem aequaret; vel mensura quadam cognica, uc digiti vet
Pollicis. Sed hocposteriore modo, ponitur jam cerri aliquid, quod
id iplum est quod quaerendum est: et (I scio rix sensibilem errorem
Fore, dummodo (phaeex iltam, quam jam dixi, magnicudinemnon
nultum excedant. Priore aurem posset quidem aliquo pacto res
explicari; Cedica, ut numerandarum olcillarionum labor lubeun-
dus sic, calculoque eriam urendum. Ouamobrem praestat, centra
Olcillationis adhibendo, certam rationem sequi, nullisque prae-
cer necellicatem lesibus obligari. at que hic jam majoribus (phx-
ris quam exiguis porius urendum, quod illae occurtu aeris minus
impediantur.
nis superius exhribuimus, act samc senturam investigandam apta
cum iaculque omnibus ilochtons pendulis est interrallum. NC-
que elsa illa duncanla, ua secunda scrupula aut eo-
1
Caecerum, non sphaera cantum ex filo Cuspensae sed a coni, cy
lindri, aliaque omnia Polida, planaque, quorum centra oscillatio-
Cunc; quoniam, a puncto luspentionis ad centrum olcillationis, cer.
rum lemisses sinsulis pen duli recurlibus indieant, ad haec ulur
SCL L I. A-