DelMonte, Guidubaldo
,
In duos Archimedis aequeponderantium libros Paraphrasis : scholijs illustrata
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N10924
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15
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cetur ſe eſſe pertractaturum de planis æquæponderantibus, ſi
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ue de centris grauitatum planorum; cùm ea, quæ æ〈que〉ponde
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rare debent, ponderare quo〈que〉 oporteat; ſi plana æ〈que〉ponde
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rare
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abbr
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debẽt
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, grauitate quadam illa prædita eſſe neceſſe eſt. </
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<
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id
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N10934
">quod
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valdè à planorum natura abhorret, cùm grauitas, nonniſi cor
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poribus, ne〈que〉 tamen omnibus competat. </
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<
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id
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N1093A
">ipſe tamen, dum
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plana æ〈que〉ponderantia, vel centra grauitatum planorum ſe
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explicaturum pollicetur, apertè ſupponit plana, ac ſuperficies
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graues exiſtere, rem ſanè immaginariam prorſus, ipſiusquè rei
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naturæ nullatenus reſpondentem. </
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<
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id
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N10944
">ita vt Archimedes circa ea,
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quæ omnino rei naturæ aduerſantur, negotium ſumpſiſſe vi
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deatur. </
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<
s
id
="
N1094A
">Verùm enimuero ſi Authoris
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expan
abbr
="
mẽtem
">mentem</
expan
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acuratiùs intuea
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lb
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mur, rem planè egregiam, naturæquè rei apprimè conſenta
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neam ipſum pertractandam ſumpſiſſe depræhendemus. </
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<
s
id
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N10954
">Nam
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lb
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quamuis plana, quatenus plana ſunt, nullam habeant graui
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tatem, non eſt tamen à rei natura, ne〈que〉 à ratione alienum,
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lb
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quin poſſimus planorum, ſuperficierum què centra grauitatis
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depræhendere, ex quibus ſi ſuſpendantur, planorum partes
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vndiquè ęqualium momentorum conſiſtentes maneant.
<
expan
abbr
="
quã-doquidem
">quan
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doquidem</
expan
>
centrum grauitatis talis eſt naturæ, vt ſi mente
<
expan
abbr
="
cõ-cipiamus
">con
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cipiamus</
expan
>
, rem aliquam in eius centro grauitatis appenſam eſ
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ſe, eo prorſus modo, quo reperitur, quieſcat, & maneat. </
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<
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id
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N1096E
">vt
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antea declarauimus. </
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<
s
id
="
N10972
">& quamuis re ipſa, actù〈que〉 plana
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expan
abbr
="
ſeorsũ
">ſeorsum</
expan
>
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lb
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à corporibus reperiri ne〈que〉ant; in ipſis tamen hæc ipſorum
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circa centra grauitatis æ〈que〉ponderatio ad actum facilè redigi
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poterit. </
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>
<
s
id
="
N1097E
">Vt ſit ſolidum AB priſ
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<
arrow.to.target
n
="
fig5
"/>
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ma,
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expan
abbr
="
cui^{9}
">cuius</
expan
>
latera AE CF DB ſint
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horizonti erecta, ſuperiorquè ba
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ſis ACD, 〈que〉m ad modum & in
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ferior EFB ſit horizonti æquidi
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ſtans; ſit autem plani ACD cen
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trum grauitatis G, ex quo G ſi
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ſuſpendatur totum AB patet
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planum ACD horizonti æqui
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diſtans permanere, ac propterea
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lb
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circa
<
expan
abbr
="
cẽtrum
">centrum</
expan
>
grauitatis G æ〈que〉
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ponderare. </
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>
<
s
id
="
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">quod quidem, quamuis egeat demonſtratione, </
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