Guevara, Giovanni di
,
In Aristotelis mechanicas commentarii
,
1627
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<
chap
id
="
N10019
">
<
p
id
="
N133DD
"
type
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main
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<
s
id
="
N13400
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<
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pagenum
="
108
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xlink:href
="
005/01/116.jpg
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figure
id
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id.005.01.116.1.jpg
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xlink:href
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number
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39
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<
lb
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mus verò C, remi manubrium A, palmula in mari B.
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</
s
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<
s
id
="
N1340F
">Si igitur manubrium A per aerem transferatur in D; vti
<
lb
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que palmula B transferri non poterit per aquam in E.
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lb
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</
s
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<
s
id
="
N13416
">Quandoquidem non poſſet cum maiori reſiſtentia æquale
<
lb
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ſpatium pertranſire, quemadmodum eſt ſpatium BE ipſi
<
lb
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AD. </
s
>
<
s
id
="
N1341E
">Quare palmula B retrocedet tantum vſque ad F,
<
lb
/>
<
expan
abbr
="
eritq.
">eritque</
expan
>
remus in DF, vbi ſpatium retroceſſionis palmulæ
<
lb
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conſtituitur minus. </
s
>
<
s
id
="
N13428
">Nam ſi conſiderentur duo trianguli,
<
lb
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AGD, & BGF; erunt ſimiles ex quarta propoſitione
<
lb
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ſexti, ac propterea latera vnius, lateribus alterius erunt
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lb
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proportionalia: Cumque latus GF minus ſi latere GD,
<
lb
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etiam latus BF, minus erit latere AD. </
s
>
</
p
>
<
p
id
="
N13434
"
type
="
main
">
<
s
id
="
N13436
">Addit præterea Ariſtoteles, quod inter iſtos duos motus
<
lb
/>
contrarios id quod ſtabit, ſeu manebit, erit medium pun
<
lb
/>
ctum vbi C, nempe vbi conſtituitur ſcalmus circa quem
<
lb
/>
remus conuertitur. </
s
>
<
s
id
="
N1343F
">Siquidem verè reſpectu manubrij, ac
<
lb
/>
palmulæ, tanquam extremorum diametri circulariter du
<
lb
/>
ctæ, ſcalmus ipſe tanquam
<
expan
abbr
="
cẽtrum
">centrum</
expan
>
manebit. </
s
>
<
s
id
="
N1344C
">Quare ſcalmus
<
lb
/>
C nunquam procederet ad partes D, nempe antrorſum,
<
lb
/>
niſi commoueretur nauigium, cui eſt affixus, & eo transfer
<
lb
/>
retur, vbi remi eſt principium, cum ſemper nauigium per
<
lb
/>
impulſum in ipſa remigatione acceptum, ſequatur motum.
<
lb
/>
</
s
>
<
s
id
="
N13458
">principij mouentis nempe manubrij à quo fertur antror
<
lb
/>
ſum, & ſic impoſito per motum manubrij ab A vſque ad
<
lb
/>
D, ſcalmus, qui erat in C, conſtituetur in H, palmula re
<
lb
/>
trocedente à B vſque ad F. </
s
>
</
p
>
<
p
id
="
N13462
"
type
="
main
">
<
s
id
="
N13464
">Hæc paucis mutatis, vel adiunctis Ariſtoteles profert,
<
lb
/>
quæ ſanè licet probent maius eſſe ſpatium AD, quod ma-</
s
>
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p
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</
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body
>
</
text
>
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