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# Title: [Philosophiae Naturalis Principia Mathematica] Philosophiæ Naturalis Principia Mathematica (shelfmark Leibn. Marg. 166)
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PHILOSOPHTAE NATDRALIS
Scholium Generale.
Ex his Propolicionibus, per oscillationes Pendulorum in Mediis
quibuscunque, invenire licet resictentiam Mediorum. Aeris rero
resistentiam inveltisari per lxperimenta sequentia. Clobum lig-
neum pondere unciarum Romanarum 572 diametro disitorum
Fondinensium 63 Fabricatum, silo cenui ab unco Catis firmo suspen-
di ita ut incer uncum ex centrum oscillationis Crlobi distantia cAce
vedum 103. In Elo punctum nocari pedibus decem _c uncia una
a cenero luspensionis dittans; et c regione puneti illius collocavi
Rcgulam in digitos distinctam, quorum ope nocarem longitudi-
nes arcuum a Pendulo descriptas. Deinde numerari olcillationes
quibus Cilobus octaram motus sui partem amitteret. Si pendu-
Jum deducebatur a perpendiculo ad distantiam duorum digitorum,
ec inde demitrebatur; ita ut toto suo descensu describeret arcum
duorum digitorum, cotaque olcillatione primas ex descensu ex alcen-
su Tublequente compotira, arcum digitorum Fere quatuor: idem
Oscillationibus 164 amisie octaram motus sui parcem, sic ue ultimo
ruo alcensu describeret arcum digiti unius cum tribus partibus
quartis disici. Si primo descensu descripsic arcum digitorum qua-
euor; amilit octaram motus partem oscillationibus 121, ita ut alcen-
Iu ultimo describeret arcum digitorum 33. Si primo descensu de-
Fcripsit arcum disitorum octo, sexdecim, triginta duorum vel sexa-
Sinca quatuor; amisit octaram motus parcem oscillationibus 69, 3523
2823 93 respectire. Pgitur differentia inter areus descensu primo
e accensu ultimo descriptos, crat in casu primo, secundo, tertio,
quarco, quinto, sextos digitorum 4. 23 T, 23 4, 8 respectire. Diri
dantur ex disterentiae per numerum oCcillationum in catu unoque-
ques ee in oscillatione una medioeris qua arcus digitorum 34, 725
25, 30, 60, 120 descriptus Fuit, differencia arcuum descensu de sub-
sequente ascensu descripeorum, crit
sici respectire. FIxe autem in majoribus olcillationibus sune in du-
Plicata ratione arcuum descripeorum quam proxime, in minoribus
vero paulo majores quam in ca ratione; ec propterea (per Corol. 2.
PrOD. XXXL Libri hujus) relictentia Globis ubi celerius movetur,
est in duplicata ratione velociratis quam proxime; ubi rardius, PaU-
lo major quam in ca racione.
Deligne
DE MOnV
POK PORVH