Guevara, Giovanni di
,
In Aristotelis mechanicas commentarii
,
1627
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<
chap
id
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N10019
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<
p
id
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N1689B
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type
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main
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N168EB
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<
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pagenum
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223
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xlink:href
="
005/01/231.jpg
"/>
monſtraſſe, inutile, ac prolixum extimaretur. </
s
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</
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<
p
id
="
N168F5
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type
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main
">
<
s
id
="
N168F7
">Eiuſmodi ergo euentus cauſam reddere nullo negocio
<
lb
/>
quiſque poterit ſuppoſita expoſitione mixti motus, quam
<
lb
/>
ſupra tradidimus: cum planè ex illa pateat, puncta CD, ſi
<
lb
/>
cut & puncta GH duabus lationibus ferri, vna dextrorſum,
<
lb
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ſimul cum toto circulo ad motum rectum axis I verſus M:
<
lb
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altero verò ſiniſtrorſum ad proprium rotationis motum quo
<
lb
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obliquè puncta omnia ſemicirculi inferioris CDA, ſicut &
<
lb
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GHE retrocedunt verſus partes AK. </
s
>
<
s
id
="
N16908
">Hinc namque fit, vt
<
lb
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tantum de recta eorum latione dextrorſum ſubtrahatur,
<
lb
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quantum per motum circularem obliquè retroceſſerint.
<
lb
/>
</
s
>
<
s
id
="
N16910
">Cumque minus contingat retrocedere punctum G, ſi
<
lb
/>
cut & punctum H, quàm ipſa puncta CD iuxta mino
<
lb
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rem ſuum motum,
<
expan
abbr
="
minoremq.
">minoremque</
expan
>
ſemicirculum, quem per il
<
lb
/>
lum percurrunt; ſequitur, vt ipſa puncta GH, magis quàm
<
lb
/>
puncta CD participent de latione recta qua tendunt dex
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lb
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trorſum. </
s
>
<
s
id
="
N16921
">At loquendo de punctis AB, ac de EF, contraria
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lb
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eſt ratio. </
s
>
<
s
id
="
N16926
">Nam huiuſmodi quatuor puncta ſicut & ipſi toti
<
lb
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ſemicirculi ſuperiores, nempe ABC, & EFG, vtraque la
<
lb
/>
tione feruntur dextrorſum. </
s
>
<
s
id
="
N1692D
">Quo fit, vt illud punctum ma
<
lb
/>
gis progrediatur, quod celerius mouetur latione propria,
<
lb
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ſeu maius ſpatium eodem tempore virtute circumuolutio
<
lb
/>
nis tranſmiſerit. </
s
>
<
s
id
="
N16936
">Cum igitur puncta AB, hoc ipſo, quod ſint
<
lb
/>
puncta circuli maioris, velocius ferantur,
<
expan
abbr
="
maioremq.
">maioremque</
expan
>
ambi
<
lb
/>
tum rotando percurrant, quàm puncta EF in circulo mino
<
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ri; magis etiam dextrorſum progredientur. </
s
>
</
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<
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id
="
N16943
"
type
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main
">
<
s
id
="
N16945
">Quod ſi puncta, quæ ſunt in arcubus 4 C, & 6 G dex
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lb
/>
trorſum vtraque pariter latione ferantur, ſicut reliqua pun
<
lb
/>
cta, quæ ſunt in ſemicirculis ABC, & EFG; & tamen pun
<
lb
/>
cta inter 4 C circuli maioris minus progrediantur, quàm
<
lb
/>
ſibi correſpondentia in 6 G circuli minoris; hoc quidem
<
lb
/>
fit; nam cum ipſi arcus maximè declinent deorſum, parum
<
lb
/>
ambo progrediuntur ad dexteram virtute ſuæ circumuolu
<
lb
/>
tionis;
<
expan
abbr
="
multumq.
">multumque</
expan
>
virtute motus recti, & aſportantis ad mo
<
lb
/>
tum axis. </
s
>
<
s
id
="
N1695C
">Cumque ratione ſitus, terminus à quo incipit mo
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ueri prædictus arcus circuli minoris, magis diſtet à termino, </
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>
</
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archimedes
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