Benedetti, Giovanni Battista de
,
Io. Baptistae Benedicti ... Diversarvm specvlationvm mathematicarum, et physicarum liber : quarum seriem sequens pagina indicabit ; [annotated and critiqued by Guidobaldo Del Monte]
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165
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rhead
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DE MECHAN.
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177
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file
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0177
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xlink:href
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http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/163127KK/pageimg/0177
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<
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et .K: </
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<
s
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echoid-s1969
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xml:space
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">Quà propter augebitur virtus per numeros impares, hoc modo; </
s
>
<
s
xml:id
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echoid-s1970
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xml:space
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">Nam
<
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>.g.</
var
>
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/>
eſſet tertia pars reſiſtentię, quemadmodum prius media erat. </
s
>
<
s
xml:id
="
echoid-s1971
"
xml:space
="
preserve
">Idem infero de
<
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>.m.n.
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o.p.r.</
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et
<
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>.s</
var
>
. </
s
>
<
s
xml:id
="
echoid-s1972
"
xml:space
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preserve
">Sed cum oporteat pondus
<
var
>.q.</
var
>
tantum eſſe vt
<
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ſuffieiant
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type
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reſiſtentiæ in
<
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>.o.</
var
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et
<
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>.p.</
var
>
<
lb
/>
ipſum ſuſtinere, idcirco ipſum pondus
<
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>.q.</
var
>
ſubſeſquialter erit
<
reg
norm
="
ponderi
"
type
="
context
">põderi</
reg
>
in
<
var
>.i.</
var
>
poſiti. </
s
>
<
s
xml:id
="
echoid-s1973
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xml:space
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">Qua-
<
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propter
<
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>.s.</
var
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quinta pars erit ponderum
<
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>.i.</
var
>
et
<
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>.q</
var
>
. </
s
>
<
s
xml:id
="
echoid-s1974
"
xml:space
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preserve
">Deinde ſi adhuc. duo diametri vnus in-
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ferior, alter verò ſuperior additi fuerint cum pondere æquali
<
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>.q.</
var
>
ad medium diame-
<
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tri inferioris, </
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>
<
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xml:id
="
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xml:space
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">tunc pondus
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>.s.</
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erit ſeptima pars trium ponderum
<
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>.i.q.</
var
>
& tertij additi, ex
<
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number
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0177-01
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xlink:href
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http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/163127KK/figures/0177-01
"/>
</
figure
>
ſupradictis rationibus. </
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>
<
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xml:space
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">Et quia virtus ſuſti
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number
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240
">
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file
="
0177-02
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xlink:href
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nens totale pondus trochleæ inferiori ap-
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penſum in tot diuiditur partes æquales,
<
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quot ſunt diametri orbiculorum trochleæ
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inferioris, quando extremum immobile fu
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nis alligatum fuerit trochleę ſuperiori, vt
<
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/>
puta in puncto
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>.e.</
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>
cum verò alligatum fue-
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rit trochleæ inferiori, virtus primi diame-
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tri
<
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>.g.i.K.</
var
>
trochleæ inferioris ſemper ſeſqui
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altera erit vnicuique aliorum
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ideò virtus reſiſtentię alterius extremi mo
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/>
bilis funis, puta
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>.s.</
var
>
ſubmultiplex erit totalis
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/>
ponderis, eo modo quo diximus, cuius vir
<
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/>
tus, ſeu grauitas diuiditur ſeu diſtrubuitur
<
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diametris inferioris trochleæ vt dictum eſt.</
s
>
</
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<
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head
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<
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xml:space
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">CAP. XXII.</
head
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<
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xml:space
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">VEra cauſa effectus, qui vigeſimaquarta quæſtione exprimitur, adhuc à nemine
<
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(quod ſciam) animaduerſa fuit, licet non ſit admodum ardua vel obſcura. </
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>
<
s
xml:id
="
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"
xml:space
="
preserve
">Ima
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ginemur ergo duos circulos
<
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var
>
et
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var
>
concentricos,
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ſimul coniunctos, vt ſi ip
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ſorum vnus feratur in orbem, alius quoque circumagatur, eo modo, quo curruum ro
<
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tæ voluuntur. </
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>
<
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xml:id
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xml:space
="
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">Et imaginemur primò ſuper lineam
<
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var
>
reuolui maiorem, & quando
<
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/>
idem circulus erit in
<
var
>.l.</
var
>
dictam lineam
<
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>.f.i.</
var
>
tangere circunferentiam eiuſdem in pun- </
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>
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