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# Title: Phoronomia, Sive De Viribus Et Motibus Corporum Solidorum Et Fluidorum Libri Duo (shelfmark Leibn. Marg. 182)
# Folio 193, page id 1066518432:0221
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B.
DE VERTBOS ET MIOTLDVS CORPORDM. LTB. II. X93
FEypothelin praesentem excogitarit Celeb. Jac. Bernoullius ejus-
que rationem phrsicam dare conatus est in tractatu luo de Cravi-
tate Aetheris Pa5. 97. Pegg. Quas Lector ibi legere atque examinare
Poterit. F.X hac hypotheli etiam Celeb. ejus Frater Johannes hianc
nostram Provolitionem XIII. provoluit in clesanti lua Dissertatio
ne De Notu Musculorum jam Cupra laudata.
S CH O F F O N.
347. LCIBMILLANa BYPOTheSIS, qua TIIusris Vir RaEIIE aEreM UE
plurimum mixtum esse ex materia comprimibili e incomprimibili FOr-
casse non inconerue ad praesentem propolitionem exigi potest. In
ilta hypothesi aeris puri seu materia tantum comprimibili constan-
eis elasticitates essent densitatibus proportionales, in aere vero mix-
eo ex comprimibili ex incomprimibili vires clasticae non sequuntur
rationem densitatum, sed in majori harum ratione existunt inter le,
ita ut pro varia proportione mixturxe ex comprimibili materia ec
incomprimibili clasticitatum cum densitatibus collatarum lex raria-
re debeat, atque adeo rationi consentaneum (IE, vires clasticas inter
Cc esse in proportione rationum, quas quantitates materix compri-
mibilis (ub aliquo rolumine contentx habent ad residua hujus volu-
minis materia incomprimibilis plena, ut habet hrpothelis hujus
Propositionis ZXTII. Caeterum Borlius, Mariortus, Bernoullii,
Amontonius, Joh. Polenus ee alii accuratis experimentis compe-
rierunt densitates aeris viribus comprimentibus, seu clasticicatibus
ejus quam proxime proportionales existere. Modusunus inter alios
quo experimentum tumserunt, est qui sequitur.
348. Sic tubus ABC instar siphonis reAexus apertus in A ex her- FiB. 24.
metice sisillatus in C, per oriticium A argentum rirum infundi-
tur in breriore crure pertingens usque in l, et in lonsiore AB uS-
que in FI, _ ubi omnia in Cacu manente fuerint, basis D ab incum-
bente Mercurio HID, aucto prestione totius atmosphaerae, seu 28. digi-
torum, eandem presturam subibit, quam balis F. ab clasticitate aeris (pa-
tio CF inclusI; si porro Mercurius infundatur per orificium A uE
tandem subsistat in L, Xc in altero eamo CB pertingat usque ad 6,
ita uE aer CF, in spatium angustius CC redactus sIE, baTiS F preI
Turam sustinebit columnxe IF auctx atmosphaerae graritatione 28. di-
gitorum, alteraque ( ab aere elastico CC parem prestionem lubibit.
ldcirco si IF + 28. digic. Mercurii ad FID + 28. digit. Fuerie, ut
F