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# Title: [Johannis Wallis S. T. D. Geometriae Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica] Johannis Wallis S. T. D. Geometriæ Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica (shelfmarks Leibn. Marg. 100:1/2, Stück 1; Leibn. Marg. 100:1/2)
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Prop. IV
patus, ex Miscellaneis.
jecis, cecidit ipse rerrorsum. Nempe; Ouo Corporis Ponderisque commune Cen-
trum fraricaris tulero immineret, Corporis lui Centrum graviraris nonnihil setro
mocum erat; quod itaque iplum post leparatum quod manibus seltarerat pondus,
ita retraxit, neantequam se in debicum licum resticuere poller, recro ceciderit.
Ilinc item elt, quod FTomines Obesi, Ventriosique, soleant Precti incedere, seu
Rectinato etiam Capite, (nempe propter Onus ante seltarum,) Contra vero, qui
nazapot eracilesque, Capite Proclinato saexius incedant; similiterque, qui Gibbis bu-
meris: proprer Onus recro geltatum.
Finc item liquer, omnino male consulcum ese, siqui Proctinantibus appendant
a Tereo grave, eo tine, uc, rerulso collo, capur erisere cogantur: Consulcius uri-
que tacturi, si pro Pectore Ventreve appensam Plumbi laminam adhiberent (ali-
udre grare,) ue, erecto rel reclinato Ciapire, altectenE aequilibrium.
Aliaquemulta, gux a mutato torius Cencro graritatis ob mutatum situm depen-
dent, (quorum exempla innumera, ne lonse abeamus, animalium incessiis aliigue
mocus suppeditabune,) Solutionem ex eodem Fonte Corrientur.
Et quidem, de mocibus pure Scatieis (quae à Cola Gravitate dependent) vel
efficiendis vel non efficiendis, judicium hiet ex illo generali principio (a Torricellio
aliilque passim adhibito:) Si, effecto motu proposito, Cravis movendi Centrum eravi-
tatis, vel Aecrecati ex pluribus conjunctis Commune Centrum, descensurum sit; Motus
consequetur: sin minus; non consequetur. Quod nos niverlalius eHterimus, (quo
ad alios etiam motus res extendacur,) Si Processus Secundum directionem moven-
ris, (vel aegresati processuumplurium,) Maenitudo (ex Virium gradu  M.
titudine processus  aestimanda praepolleat Maenitudini (similiter aestimanda)
Recresus (recressummve acereeati) Contra moventis directionem; Alotus efficie-
tur: Sin minus; non efficietur. VE CX PFOP. 295, 6. Cap. 2. liguet. In moribus
autem Facilicandis, seu minori Vi perficiendis, Pro diminutis Piribus effectricibus
in eadem ratione diminuitur Celeritas; (adeoque Virium defectus Temporis dispen-
Acque hac Principia, ad Ouactiones Mechanicas innumeras sire apud Pristote-
tem tive alios occurrentes, sive in communi rita humana palsim obrias, Tolvendas;
tacile elset accommodare. Sed, crescence volumine, alicubi tandem siltendum
exic ne nimii simus; corique operi tinis imponendus.
dio redimendum: ) Per prOD. 27, 28. C ap. 1.