Guevara, Giovanni di
,
In Aristotelis mechanicas commentarii
,
1627
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N10019
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228
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xlink:href
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005/01/236.jpg
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<
s
id
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N16B81
">Quod ſi reſtes extendantur ſecundum diametrum, vt in
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deſcripto lectulo ABCD, plus reſtium abſumi, inquit Phi
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loſophus; & eadem
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qua ſupra ratioci
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natione poterit de
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monſtrari. </
s
>
<
s
id
="
N16B94
">
<
expan
abbr
="
Nã
">Nam</
expan
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ſin
<
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gulis
<
expan
abbr
="
quibusq.
">quibusque</
expan
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re
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ſtibus, tanquam la
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teribus trianguli re
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ctanguli conſidera
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tis per 47. prop.
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</
s
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<
s
id
="
N16BA9
">primi, & per extractionem radicis quadratæ, inueniemus,
<
lb
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eos omnes ſimul ſumptos quadraginta pedum cum dimi
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dio obtinere dimenſionem, quibus ſi alios ſeptem, qui ex
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tra cadunt adijciamus, erit tota longitudo reſtis pedum 47.
<
lb
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cum dimidio. </
s
>
<
s
id
="
N16BB4
">Quod ſanè ad rei, de qua agitur intelligen
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lb
/>
tiam ſufficit indicaſſe, cum exactior ſupputatio fruſtrà ac
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lb
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prolixius quàm par eſt, ſermonem protraheret. </
s
>
</
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<
p
id
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type
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head
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<
s
id
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N16BBD
">Quæſtio Vigeſimaſexta.</
s
>
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type
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<
s
id
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N16BC2
">C
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emph
type
="
italics
"/>
vr difficilius eſt longa ligna ab extremo ſuper
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lb
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humeros ferre, quàm ſecundum medium,
<
lb
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æquali existente pondere? </
s
>
<
s
id
="
N16BCD
">An quia vibrato li
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gno ipſum extremum prohibet ferre, vibratio
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lb
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ne magis retrahens lationem? </
s
>
<
s
id
="
N16BD4
">An quoniam li
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lb
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cet nihil inflectatur, neque multam habeat lon
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gitudinem, difficilius tamen ad ferendum eſt
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lb
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ab extremo, quoniam facilius ex medio eleuatur, quàm ab ex
<
lb
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tremo, & ideo ſic ferre eſt facilius. </
s
>
<
s
id
="
N16BE0
">Cauſa autem quoniam
<
lb
/>
ſecundum medium quidem eleuato ligno ſemper ſeſe inuicem
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lb
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ſuſpendunt extrema, & altera pars alteram bene ſubleuat.
<
lb
/>
</
s
>
<
s
id
="
N16BE8
">Medium enim veluti centrum fit, vbi habet is qui eleuat,
<
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aut fert. </
s
>
<
s
id
="
N16BED
">Extremorum igitur vtrumque deorſum vergens,
<
lb
/>
ſurſum ſuſpenditur. </
s
>
<
s
id
="
N16BF2
">Quod ſi ab extremo eleuetur, aut fe
<
lb
/>
ratur, non ſanè facit: ſed vniuerſum pondus ad vnum ver
<
lb
/>
git medium, quo eleuatur, aut fertur. </
s
>
<
s
id
="
N16BF9
">Sit medium vbi A,
<
lb
/>
extrema B, C. </
s
>
<
s
id
="
N16BFF
">Eleuato igitur aut portato ſecundum A,
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emph.end
type
="
italics
"/>
</
s
>
</
p
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</
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