DelMonte, Guidubaldo
,
In duos Archimedis aequeponderantium libros Paraphrasis : scholijs illustrata
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poſitione ſunt manifeſta, quando autem hæc linea eſt hori
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zonti erecta, tunc idem prorſus eſt (vt mox diximus) perinde
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ac ſi pondus in centro grauitatis ad vnguem ſuſtineretur.
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Quocirca ſi pònderis grauitas minimè percipi poteſt, niſi in
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<
expan
abbr
="
cẽtro
">centro</
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grauitatis ipſius,
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expan
abbr
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põdus
">pondus</
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certè in ipſo propriè grauitat. </
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</
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<
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type
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<
s
id
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">Centrum figuræ apud Mathematicos eſt punctum, à quo
<
lb
/>
ſemidiametri exeunt; vel per quod
<
expan
abbr
="
trãſeunt
">tranſeunt</
expan
>
diametri, vt circu
<
lb
/>
li centrum, & ellipſis, necnon oppoſitarum ſectionum. </
s
>
</
p
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type
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<
s
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">Centrum verò magnitudinis eſt id, quod medium figuræ
<
lb
/>
obtinet; vel quod ęqualiter ab exteriori ſuperficie diſtat. </
s
>
<
s
id
="
N1068A
">vt
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lb
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ſphærę centrum. </
s
>
</
p
>
<
p
id
="
N1068E
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type
="
main
">
<
s
id
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">Centrum deni〈que〉 mundi eſt punctum in medio vniuerſi
<
lb
/>
ſitum, omniumquè rerum infimum. </
s
>
</
p
>
<
p
id
="
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type
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<
s
id
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">Cæterùm ad meliorem horum notitiam obſeruandum eſt,
<
lb
/>
hęc centra aliquando ſimul omnia inter ſe conuenire,
<
expan
abbr
="
aliquã
">aliquam</
expan
>
<
lb
/>
do nonnulla; aliquando autem minimè. </
s
>
<
s
id
="
N106A0
">ſimul verò omnia
<
lb
/>
conueniunt. </
s
>
<
s
id
="
N106A4
">vt centrum vniuerſi, centrum magnitudinis ter
<
lb
/>
ræ (ſphęræ ſcilicet ex aqua, terraquè compoſitę, quam nos bre
<
lb
/>
uitatis ſtudio terram tantùm nuncupabimus) centrum figu
<
lb
/>
rę terrę; ac centrum grauitatis terrę. </
s
>
<
s
id
="
N106AC
">Cùm enim terra ſit ſphæ
<
lb
/>
rica (vt omnes fatentur.) eius medium erit centrum figurę, à
<
lb
/>
quo ſemidiametri exeunt. </
s
>
<
s
id
="
N106B2
">idipſum què erit centrum magnitu
<
lb
/>
dinis, ſiquidem ipſius figurę medium obtinet. </
s
>
<
s
id
="
N106B6
">Pręterea idem
<
lb
/>
punctum eſt centrum grauitatis terrę. </
s
>
<
s
id
="
N106BA
">& quoniam terra in me
<
lb
/>
dio
<
expan
abbr
="
mūdi
">mundi</
expan
>
quieſcit, erit hoc
<
expan
abbr
="
centrũ
">centrum</
expan
>
grauitatis in centro vniuerſi
<
lb
/>
collocatum. </
s
>
<
s
id
="
N106C8
">& hoc duntaxat modo centra omnia in
<
expan
abbr
="
vnũ
">vnum</
expan
>
con
<
lb
/>
uenire poſſunt. </
s
>
<
s
id
="
N106D0
">quamquam verò ſphęra, quę continet
<
expan
abbr
="
terrā
">terram</
expan
>
&
<
lb
/>
aquą, compoſita eſt ex corporibus diuerſę ſpeciei,
<
expan
abbr
="
differẽtiſquè
">differentiſquè</
expan
>
<
lb
/>
grauitatis, nimirum ex terra, & aqua; non
<
expan
abbr
="
tamẽ
">tamen</
expan
>
efficitur, quin
<
lb
/>
<
expan
abbr
="
mediũ
">medium</
expan
>
ipſius cum centro grauitatis conſpiret in vnum.
<
expan
abbr
="
Nã
">Nam</
expan
>
ex
<
lb
/>
Ariſto telis ſententia terra circa mundi centrum vndi〈que〉
<
expan
abbr
="
cõſi
">conſi</
expan
>
<
arrow.to.target
n
="
marg7
"/>
<
lb
/>
ſtit; & Archimedes affirmat,
<
expan
abbr
="
etiã
">etiam</
expan
>
<
expan
abbr
="
humidũ
">humidum</
expan
>
manens
<
arrow.to.target
n
="
marg8
"/>
<
expan
abbr
="
ſphęri-cũ
">ſphęri
<
lb
/>
cum</
expan
>
, cuius
<
expan
abbr
="
cẽtrum
">centrum</
expan
>
eſt
<
expan
abbr
="
centrũ
">centrum</
expan
>
vniuerſi. </
s
>
<
s
id
="
N10710
">ſi ita 〈que〉 terra, & aqua ma
<
lb
/>
<
expan
abbr
="
nẽt
">nent</
expan
>
,
<
expan
abbr
="
quieſcũtquè
">quieſcuntquè</
expan
>
circa
<
expan
abbr
="
centrũ
">centrum</
expan
>
vniuerſi, ergo
<
expan
abbr
="
centrũ
">centrum</
expan
>
<
expan
abbr
="
mūdi
">mundi</
expan
>
<
expan
abbr
="
ipſo-rũ
">ipſo
<
lb
/>
rum</
expan
>
ſimul
<
expan
abbr
="
cẽtrũ
">centrum</
expan
>
grauitatis exiſtit. </
s
>
<
s
id
="
N10731
">at〈que〉 adeo quatuor prędicta
<
lb
/>
centra in
<
expan
abbr
="
vnũ
">vnum</
expan
>
ſimul conueniunt punctum. </
s
>
<
s
id
="
N10739
">Quod
<
expan
abbr
="
autẽ
">autem</
expan
>
tria ſi
<
lb
/>
mul centra in vnum coeant, ſatis
<
expan
abbr
="
conſpicuū
">conſpicuum</
expan
>
eſſe poterit cuiquè </
s
>
</
p
>
</
chap
>
</
body
>
</
text
>
</
archimedes
>