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# Title: [Johannis Wallisii SS. Th. D. Geometriae Professoris Saviliani Oxoniae, Tractatus Duo] Johannis Wallisii SS. Th. D. Geometriæ Professoris Saviliani Oxoniæ, Tractatus Duo (shelfmarks Leibn. Marg. 84:1, Stück 2; Leibn. Marg. 84:1)
# Folio 51, page id 826605435:0071
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D
CTCLOTDO
mum dictancia, in
15P i 32D.
768
96
De magnicudinem ducta, dat
Erel h D. P  e D exposicae porcionis qua-
dranci F YZ insistentis momencum, respectu rectae F A. Ouod
35 proponitur inguirendum.
40. HOCIBIEUE MOMENEUM, Cx , Z, D P momentO cOriuS POr-
cionis semicplindri, ablacum, relinquie - 30 D P F L D=, POI-
cionis relidux Z YoC C, quadrani 2 YC insestenris, momen-
CUM.
4r. Deinde, Posthoc ablacum, resticuendum est quaneum
criangulo quadranci F YZ inscripro (hoc elt, criangulo FG B
tics. L.) intistie: Nempe Pyramis, basin habens YvCZ = = D
alcicudinem F X = = D, quae in balim ducta dac =D, cujus
eriens = D etprramidis magnicudo; acque haec in 3D, di-
Ctantiam sui ceneri gravicatis a plano e F A, ducta, dac ex D pY
camidis momentum respectu I A rectae: Quod quidem momen-
cum, momento reliquae Parcis 250 D. D + = D addicum, dac
a5o D. P +  Da momencum iltius omnis quod sectori L b C
tig. 2. InEltir, respectu rectae AF.
42. Coonito durem momento Porcionis sic secti prismatis
Sectori C Lb insiltenris; COgnOICITUF CTIAM MOMeNEUM POE-
cionis prismaris Ouadrilineo C FB BAg: L. insistentis, eodem
plano secti, (respectu ejusdem AF recte:) Fs urique ad illud,
uC7 ad 3 (Per 5 45:) Adeoque illius quod Ouinquitineo CBFBD
Hg. X. hoc est Ouadrilineo C FB B fg. 7. (urpore quod ad idem
momentum elt 4 ad 3;) nempe , 3= D. P + L D
43. Unde h auteratur momentum ictius quod Parallelogram-
mo F B H∞. 7. inBstic, (hoc eA, prismaris basem habeneis cri-
anoularem. semissem urique quadrari F B, adeoque =D =, alci-
rudinem vero Bb = a P, cujus icaque magnicudo est , = D2 ∞
quae in Z F B = Z D distanciam ceneri gravicacis a plano rectae
F A insistence ducta, dac 56 D P prisinaris momentum respectu
F A recta;) manebic == D= P + a D momencum ictius omnis
quod crilineo C BB insltic, respectu rectae AF.
44. Ouod aurem Frilineo huic jam insistie, (alcicudinem jam
nactum in puncto b aequalem ipA F b = Z D, _ deinceps con
tinue cresceMTeM,) Contac ex prismate super illa base, alcicudinis