DelMonte, Guidubaldo
,
Mechanicorvm Liber
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141 - 150
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27
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xlink:href
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036/01/067.jpg
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<
s
id
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">Sit enim libra AB
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horizonti æquidiſtans,
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cuius centrum E ſit
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infra libram. </
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<
s
id
="
id.2.1.49.7.1.2.0
">quia ve
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lb
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rò Ariſtoteles libram,
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ſicuti actu eſt, conſide
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lb
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rat; ideò neceſſe eſt
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trutinam, vel aliquid
<
lb
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aliud infra centrum E
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collocare, vt EF
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lb
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(quod quidem truti
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na erit) ita vt centrum
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E ſuſtineat. </
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>
<
s
id
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id.2.1.49.7.1.3.0
">ſitq; per
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lb
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place
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text
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xlink:href
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number
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<
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pendiculum ECD. </
s
>
<
s
id
="
N11EC3
">& vt libra AB ab hoc moueatur ſitu; dicit
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lb
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Ariſtoteles, ponatur pondus in B, quod cùm ſit graue, libram ex
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lb
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parte B deorſum mouebit; putá in G. </
s
>
<
s
id
="
N11EC9
">ita vt propter impedimen
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lb
/>
tum deorſum amplius moueri non poterit. </
s
>
<
s
id
="
id.2.1.49.7.1.4.0
">non enim dicit Ari
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lb
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ſtoteles, moueatur libra ex parte B deorſum, quouſq; libuerit; dein
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lb
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de relinquatur, vt nos diximus: ſed præcipit, vt in ipſo B po
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lb
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natur pondus, quod ex ipſius natura deorſum ſemper mouebi
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lb
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tur; donec libra trutinæ, ſiue alicui alii adhæreat. </
s
>
<
s
id
="
id.2.1.49.7.1.5.0
">& quando B erit
<
lb
/>
in G, erit libra in GH; in quo ſitu, ablato pondere, manebit:
<
lb
/>
cùm maior pars libræ à perpendiculo ſit verſus G, quæ eſt DG,
<
lb
/>
quàm DH. </
s
>
<
s
id
="
id.2.1.49.7.1.5.0.a
">nec deorſum amplius mouebitur; nam libra, vel
<
lb
/>
trutinæ, vel alteri cuipiam, quod centrum libræ ſuſtineat, incum
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lb
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bet. </
s
>
<
s
id
="
id.2.1.49.7.1.6.0
">ſi enim huic non adhæreret, libra ex parte G deorſum ex
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lb
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ipſius ſententia moueretur; cùm id, quod plus eſt, ſcilicet DG,
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lb
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deorſum ferri ſit neceſſe. </
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>
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type
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<
s
id
="
id.2.1.49.8.1.1.0
">Cæterum quis adhuc dicere poterit, ſi paruum imponatur pon
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lb
/>
dus in B, mouebitur quidem libra deorſum, non autem vſq; ad
<
lb
/>
G. </
s
>
<
s
id
="
N11EF9
">in quò ſitu ſecundùm Ariſtotelem, ablato pondere, mane
<
lb
/>
re deberet. </
s
>
<
s
id
="
id.2.1.49.8.1.2.0
">quod experimento patet; cùm in vna tantùm libræ
<
lb
/>
extremitate, impoſito onere, hocq; vel maiore, vel minore, libra
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lb
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plus, minuſuè inclinetur. </
s
>
<
s
id
="
id.2.1.49.8.1.3.0
">Quod eſt quidem veriſſimum, centro ſupra
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lb
/>
libram, non autem infra, neq; in ipſa libra collocato. </
s
>
<
s
id
="
id.2.1.49.8.1.4.0
">Vt exempli
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gratia. </
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