Ghetaldi, Marino
,
Marini Ghetaldi Promotvs Archimedis sev de varijs corporum generibus grauitate & magnitudine comparatis
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[Handwritten note 1]
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[Handwritten note 2]
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[Handwritten note 3]
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LECTORI.</
head
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s
xml:id
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xml:space
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">DIVERSA corporum genera duplici ra-
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tione comparari inter ſe à Mathematicis
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poſſunt mole ac pondere. </
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<
s
xml:id
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echoid-s82
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xml:space
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preserve
">Pondere compara-
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lb
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tio fit, cum inter corpora diuer ſi generis mo
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le æqualia, quæritur, quę ſit ratio ponderis:
<
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</
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<
s
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echoid-s83
"
xml:space
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">quanto videlicet, vnum altero grauius, aut leuius ſit. </
s
>
<
s
xml:id
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echoid-s84
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xml:space
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">Ma-
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gnitudine autem fit collatio, cum poſita pari grauitate, quæ-
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ritur, quæ ſit ratio magnitudinis; </
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<
s
xml:id
="
echoid-s85
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xml:space
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">quanto ſit alterum altero
<
lb
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maius, aut minus. </
s
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<
s
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echoid-s86
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">Quæ comparatio mihi cum videretur & </
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iucunda cognitu, & </
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<
s
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"
xml:space
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">vſum nonnullum habere, nec fuſe à quo
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piam explicata, non ita pridem ſuper ea non nihil cœpi mo-
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liri; </
s
>
<
s
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="
echoid-s89
"
xml:space
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">ſed nibil de luce ac publico cogitabam. </
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<
s
xml:id
="
echoid-s90
"
xml:space
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">Is enim ego ſum,
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qui malim ſcire, quam noſci; </
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<
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">diſcere, quam docere. </
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<
s
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echoid-s92
"
xml:space
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">Sed ta-
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men cum Michael Coignetus in rebus Mathematicis ex-
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cellens vir, ac Magiſter meus, cui ego plurimum debere me
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fateor, ab eo enim prima elementa habui, repoſcere à me pu-
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blicum aliquem doctrinæ ſuæ fructum videretur. </
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>
<
s
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xml:space
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">ac Fede-
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ricus Saminiatus cuius morum ſuauitatem, & </
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<
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="
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"
xml:space
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">beneuolen-
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tiam erga me diu, dum ſimul hiſce studijs condiſcipuli ope-
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lb
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ram dedimus, expertus ſum, me vt aliquid auderem tum
<
lb
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oratione, tum exemplo ſuo excitaret, cœpi minus ab ea cogi-
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tatione alienus eſſe. </
s
>
<
s
xml:id
="
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xml:space
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">Deinde vero ſummos viros </
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