DelMonte, Guidubaldo, Mechanicorvm Liber

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1
COROLLARIVM I.
Hinc manifeſtum eſt vnumquemq; funem EF
GK LN OP quartam ſuſtinere partem pon­
deris A.
COROLLARIVM II.
Patet etiam orbiculum, cuius centrum C,
non minus eo, cuius centrum eſt B, ſuſtinere.
ALITER.
Adhuc iiſdem poſitis, ſi duæ eſſent poten
tiæ æquales pondus A ſuſtinentes, vna in O
altera in C; eſſet vnaquæq; dictarum poten
tiarum ponderis A ſubtripla.
ſed quoniam
vectis GF, cuius fulcimentum eſt F bifariam
diuiſus eſt in C; ſi igitur ponatur in G poten
tia idem pondus ſuſtinens, vt potentia in C;
erit potentia in G ſubdupla potentiæ, quæ eſ
ſet in C; nam ſi potentia in C ſe ipſa pon­
dus in C appenſum ſuſtineret, eſſet vtiq; ip
ſi ponderi æqualis; & idem pondus, ſi à po
tentia in G ſuſtineretur, eſſet ipſius poten
tiæ in G duplum; potentia veró in C ſubtri
pla eſſet ponderis A; ergo potentia in G
ſubſexcupla eſſet ponderis A.
Cùm itaq;
potentia in O ſubtripla ſit ponderis A, &
potentia in G ſubſexcupla; erunt vtræq; ſi­
mul potentiæ in OG ipſius ponderis A ſub
duplæ.
tertia enim pars cum ſexta dimi­
dium efficit.
quoniam autem potentiæ in
OG, ſiue in PH (vt prius dictum eſt)
ſunt inter ſe æquales, ac vtræq; ſimul ſubdu
plæ ſunt ponderis A. erit vnaquæq; poten
150[Figure 150]

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