DelMonte, Guidubaldo - Mechanicorvm Liber

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Sit autem centrum libræ
AB ſupra C in F; ſitq;
FC ipſi AB, & horizonti
perpendicularis: & ſi mo
ueatur libra in DE, linea
CF mota erit in FG; quæ
cùm non ſit horizonti per
pendicularis, libra DE
deorſum ex parte D moue
bitur, donec FG in FC
redeat: atq; tunc libra DE
in AB erit, in quò ſitu
quoq; manebit.

57[Figure 57]

Et ſi centrum libræ F
ſit infra libram; ſitq; mota
libra in DE; primùm qui
dem manifeſtum eſt li
bram in AB manere; in
DE verò deorſum ex par
te E moueri: cùm linea
FG non ſit horizonti per
pendicularis.

58[Figure 58]

Ex his determinatis ſi libra ſit
arcuata, vel libræ brachia angulum
conſtituant; centrumq; diuerſimo
dè collocetur (quamquam hæc pro
priè non ſit libra) varios tamen
huius quoq; effectus oſtendere pote
rimus. Vt ſit libra ACB, cuius
centrum, circa quod vertitur, ſit C.
ductaq; AB, ſit arcus ſiue angulus

59[Figure 59]
ACB ſupra lineam AB; & in AB grauitatis centra ponderum
ponantur, quæ in hoc ſitu maneant. moueatur deinde libra ab

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Scan	Original
71
72
73
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77
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79
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82
83
84
85
86
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100

Scan	Original
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
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89
90
91
92
93
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95
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